/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-simpl-str-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 17:01:45,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 17:01:45,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 17:01:45,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 17:01:46,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 17:01:46,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 17:01:46,010 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 17:01:46,011 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 17:01:46,023 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 17:01:46,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 17:01:46,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 17:01:46,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 17:01:46,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 17:01:46,025 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 17:01:46,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 17:01:46,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 17:01:46,025 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 17:01:46,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 17:01:46,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 17:01:46,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 17:01:46,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 17:01:46,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 17:01:46,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 17:01:46,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:01:46,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 17:01:46,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 17:01:46,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 17:01:46,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 17:01:46,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 17:01:46,028 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 17:01:46,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 17:01:46,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 17:01:46,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 17:01:46,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 17:01:46,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 17:01:46,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 17:01:46,227 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 17:01:46,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2022-03-03 17:01:46,273 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1a7c858/5a9a1f93b3aa43e4affad4443c0ea1ad/FLAGe69cd4e31 [2022-03-03 17:01:46,618 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 17:01:46,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-symm.wvr.c [2022-03-03 17:01:46,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1a7c858/5a9a1f93b3aa43e4affad4443c0ea1ad/FLAGe69cd4e31 [2022-03-03 17:01:47,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b1a7c858/5a9a1f93b3aa43e4affad4443c0ea1ad [2022-03-03 17:01:47,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 17:01:47,037 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 17:01:47,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 17:01:47,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 17:01:47,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 17:01:47,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b714f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47, skipping insertion in model container [2022-03-03 17:01:47,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 17:01:47,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 17:01:47,273 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-simpl-str-symm.wvr.c[2303,2316] [2022-03-03 17:01:47,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:01:47,297 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 17:01:47,329 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-simpl-str-symm.wvr.c[2303,2316] [2022-03-03 17:01:47,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:01:47,339 INFO L208 MainTranslator]: Completed translation [2022-03-03 17:01:47,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47 WrapperNode [2022-03-03 17:01:47,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 17:01:47,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 17:01:47,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 17:01:47,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 17:01:47,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,383 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 130 [2022-03-03 17:01:47,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 17:01:47,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 17:01:47,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 17:01:47,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 17:01:47,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 17:01:47,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 17:01:47,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 17:01:47,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 17:01:47,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (1/1) ... [2022-03-03 17:01:47,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:01:47,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:01:47,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 17:01:47,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 17:01:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 17:01:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 17:01:47,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 17:01:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 17:01:47,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 17:01:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 17:01:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 17:01:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 17:01:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 17:01:47,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 17:01:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 17:01:47,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 17:01:47,510 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 17:01:47,582 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 17:01:47,583 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 17:01:47,779 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 17:01:47,786 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 17:01:47,786 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 17:01:47,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:01:47 BoogieIcfgContainer [2022-03-03 17:01:47,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 17:01:47,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 17:01:47,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 17:01:47,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 17:01:47,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:01:47" (1/3) ... [2022-03-03 17:01:47,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b25b69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:01:47, skipping insertion in model container [2022-03-03 17:01:47,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:01:47" (2/3) ... [2022-03-03 17:01:47,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b25b69d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:01:47, skipping insertion in model container [2022-03-03 17:01:47,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:01:47" (3/3) ... [2022-03-03 17:01:47,793 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2022-03-03 17:01:47,796 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 17:01:47,796 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 17:01:47,796 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 17:01:47,796 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 17:01:47,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,833 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,834 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,835 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,836 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,837 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,838 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,839 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,840 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,841 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,842 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,843 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,844 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,845 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,846 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,847 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,848 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,849 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,850 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,851 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,852 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,853 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,854 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,855 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,856 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,857 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,858 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,859 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,860 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,861 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,862 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,863 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,864 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,864 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,864 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,864 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,864 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,864 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,864 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,865 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,866 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,868 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,869 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,870 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,871 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,872 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:01:47,875 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-03 17:01:47,915 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 17:01:47,923 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 17:01:47,923 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-03 17:01:47,940 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 170 places, 176 transitions, 368 flow [2022-03-03 17:01:48,230 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7153 states, 7152 states have (on average 2.8859060402684564) internal successors, (20640), 7152 states have internal predecessors, (20640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:48,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 7153 states, 7152 states have (on average 2.8859060402684564) internal successors, (20640), 7152 states have internal predecessors, (20640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:48,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:48,307 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:48,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:48,308 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:48,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:48,313 INFO L85 PathProgramCache]: Analyzing trace with hash 4484043, now seen corresponding path program 1 times [2022-03-03 17:01:48,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:48,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964472283] [2022-03-03 17:01:48,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:48,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:48,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:48,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:48,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964472283] [2022-03-03 17:01:48,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964472283] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:48,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:48,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:48,699 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502459321] [2022-03-03 17:01:48,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:48,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:48,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:48,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:48,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:48,732 INFO L87 Difference]: Start difference. First operand has 7153 states, 7152 states have (on average 2.8859060402684564) internal successors, (20640), 7152 states have internal predecessors, (20640), 0 states have call successors, (0), 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 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:49,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:49,077 INFO L93 Difference]: Finished difference Result 8205 states and 22746 transitions. [2022-03-03 17:01:49,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-03 17:01:49,079 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:49,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:49,138 INFO L225 Difference]: With dead ends: 8205 [2022-03-03 17:01:49,139 INFO L226 Difference]: Without dead ends: 7243 [2022-03-03 17:01:49,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:01:49,145 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 128 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:49,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1806 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:49,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2022-03-03 17:01:49,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 6522. [2022-03-03 17:01:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6521 states have (on average 2.7931298880539797) internal successors, (18214), 6521 states have internal predecessors, (18214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:49,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 18214 transitions. [2022-03-03 17:01:49,401 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 18214 transitions. Word has length 91 [2022-03-03 17:01:49,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:49,402 INFO L470 AbstractCegarLoop]: Abstraction has 6522 states and 18214 transitions. [2022-03-03 17:01:49,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:49,403 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 18214 transitions. [2022-03-03 17:01:49,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:49,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:49,418 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] [2022-03-03 17:01:49,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 17:01:49,418 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:49,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:49,419 INFO L85 PathProgramCache]: Analyzing trace with hash 2130602867, now seen corresponding path program 2 times [2022-03-03 17:01:49,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:49,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053124609] [2022-03-03 17:01:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:49,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:49,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:49,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053124609] [2022-03-03 17:01:49,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053124609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:49,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:49,676 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:49,676 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629918117] [2022-03-03 17:01:49,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:49,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:49,677 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:49,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:49,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:49,677 INFO L87 Difference]: Start difference. First operand 6522 states and 18214 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:49,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:49,942 INFO L93 Difference]: Finished difference Result 7479 states and 20746 transitions. [2022-03-03 17:01:49,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:01:49,942 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:49,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:49,971 INFO L225 Difference]: With dead ends: 7479 [2022-03-03 17:01:49,971 INFO L226 Difference]: Without dead ends: 7212 [2022-03-03 17:01:49,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:49,973 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 110 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:49,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 1600 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:49,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7212 states. [2022-03-03 17:01:50,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7212 to 6518. [2022-03-03 17:01:50,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6518 states, 6517 states have (on average 2.793156360288476) internal successors, (18203), 6517 states have internal predecessors, (18203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:50,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6518 states to 6518 states and 18203 transitions. [2022-03-03 17:01:50,221 INFO L78 Accepts]: Start accepts. Automaton has 6518 states and 18203 transitions. Word has length 91 [2022-03-03 17:01:50,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:50,223 INFO L470 AbstractCegarLoop]: Abstraction has 6518 states and 18203 transitions. [2022-03-03 17:01:50,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:50,226 INFO L276 IsEmpty]: Start isEmpty. Operand 6518 states and 18203 transitions. [2022-03-03 17:01:50,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:50,255 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:50,255 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:50,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 17:01:50,256 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:50,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:50,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1383610329, now seen corresponding path program 3 times [2022-03-03 17:01:50,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:50,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478952643] [2022-03-03 17:01:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:50,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:50,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:50,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:50,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478952643] [2022-03-03 17:01:50,416 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478952643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:50,416 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:50,416 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:50,416 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841086974] [2022-03-03 17:01:50,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:50,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:50,417 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:50,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:50,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:50,417 INFO L87 Difference]: Start difference. First operand 6518 states and 18203 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:50,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:50,735 INFO L93 Difference]: Finished difference Result 7547 states and 20917 transitions. [2022-03-03 17:01:50,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 17:01:50,736 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:50,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:50,768 INFO L225 Difference]: With dead ends: 7547 [2022-03-03 17:01:50,769 INFO L226 Difference]: Without dead ends: 7252 [2022-03-03 17:01:50,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:01:50,770 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 145 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:50,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 1730 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:50,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7252 states. [2022-03-03 17:01:50,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7252 to 6514. [2022-03-03 17:01:50,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6514 states, 6513 states have (on average 2.7931828650391526) internal successors, (18192), 6513 states have internal predecessors, (18192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 18192 transitions. [2022-03-03 17:01:50,963 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 18192 transitions. Word has length 91 [2022-03-03 17:01:50,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:50,966 INFO L470 AbstractCegarLoop]: Abstraction has 6514 states and 18192 transitions. [2022-03-03 17:01:50,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 18192 transitions. [2022-03-03 17:01:50,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:50,978 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:50,979 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] [2022-03-03 17:01:50,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 17:01:50,979 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:50,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:50,980 INFO L85 PathProgramCache]: Analyzing trace with hash -530590919, now seen corresponding path program 4 times [2022-03-03 17:01:50,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:50,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267739493] [2022-03-03 17:01:50,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:50,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:51,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:51,119 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:51,119 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267739493] [2022-03-03 17:01:51,119 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267739493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:51,119 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:51,119 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:51,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003672963] [2022-03-03 17:01:51,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:51,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:51,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:51,158 INFO L87 Difference]: Start difference. First operand 6514 states and 18192 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:51,395 INFO L93 Difference]: Finished difference Result 7598 states and 21046 transitions. [2022-03-03 17:01:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 17:01:51,395 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:51,415 INFO L225 Difference]: With dead ends: 7598 [2022-03-03 17:01:51,415 INFO L226 Difference]: Without dead ends: 7301 [2022-03-03 17:01:51,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-03 17:01:51,423 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 161 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:51,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 1794 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:51,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2022-03-03 17:01:51,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 6518. [2022-03-03 17:01:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6518 states, 6517 states have (on average 2.7925425809421514) internal successors, (18199), 6517 states have internal predecessors, (18199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:51,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6518 states to 6518 states and 18199 transitions. [2022-03-03 17:01:51,641 INFO L78 Accepts]: Start accepts. Automaton has 6518 states and 18199 transitions. Word has length 91 [2022-03-03 17:01:51,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:51,642 INFO L470 AbstractCegarLoop]: Abstraction has 6518 states and 18199 transitions. [2022-03-03 17:01:51,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:51,642 INFO L276 IsEmpty]: Start isEmpty. Operand 6518 states and 18199 transitions. [2022-03-03 17:01:51,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:51,655 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:51,656 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:51,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-03 17:01:51,656 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:51,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:51,656 INFO L85 PathProgramCache]: Analyzing trace with hash 86805253, now seen corresponding path program 5 times [2022-03-03 17:01:51,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:51,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262835192] [2022-03-03 17:01:51,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:51,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:51,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:51,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262835192] [2022-03-03 17:01:51,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262835192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:51,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:51,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:51,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330452254] [2022-03-03 17:01:51,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:51,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:51,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:51,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:51,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:51,764 INFO L87 Difference]: Start difference. First operand 6518 states and 18199 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:51,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:51,975 INFO L93 Difference]: Finished difference Result 7509 states and 20816 transitions. [2022-03-03 17:01:51,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:01:51,975 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:51,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:51,993 INFO L225 Difference]: With dead ends: 7509 [2022-03-03 17:01:51,993 INFO L226 Difference]: Without dead ends: 7243 [2022-03-03 17:01:51,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:01:51,996 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 123 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:51,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1755 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:52,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7243 states. [2022-03-03 17:01:52,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7243 to 6522. [2022-03-03 17:01:52,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6522 states, 6521 states have (on average 2.7919030823493327) internal successors, (18206), 6521 states have internal predecessors, (18206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:52,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6522 states to 6522 states and 18206 transitions. [2022-03-03 17:01:52,200 INFO L78 Accepts]: Start accepts. Automaton has 6522 states and 18206 transitions. Word has length 91 [2022-03-03 17:01:52,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:52,202 INFO L470 AbstractCegarLoop]: Abstraction has 6522 states and 18206 transitions. [2022-03-03 17:01:52,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:52,202 INFO L276 IsEmpty]: Start isEmpty. Operand 6522 states and 18206 transitions. [2022-03-03 17:01:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:52,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:52,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:52,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 17:01:52,214 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:52,215 INFO L85 PathProgramCache]: Analyzing trace with hash -2082043219, now seen corresponding path program 6 times [2022-03-03 17:01:52,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:52,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793662784] [2022-03-03 17:01:52,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:52,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:52,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:52,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793662784] [2022-03-03 17:01:52,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793662784] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:52,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:52,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:52,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574754425] [2022-03-03 17:01:52,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:52,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:52,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:52,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:52,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:52,346 INFO L87 Difference]: Start difference. First operand 6522 states and 18206 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:52,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:52,566 INFO L93 Difference]: Finished difference Result 7463 states and 20694 transitions. [2022-03-03 17:01:52,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:01:52,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:52,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:52,583 INFO L225 Difference]: With dead ends: 7463 [2022-03-03 17:01:52,584 INFO L226 Difference]: Without dead ends: 7188 [2022-03-03 17:01:52,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:01:52,585 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 106 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:52,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 1874 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:52,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7188 states. [2022-03-03 17:01:52,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7188 to 6510. [2022-03-03 17:01:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6510 states, 6509 states have (on average 2.793209402365955) internal successors, (18181), 6509 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:52,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6510 states to 6510 states and 18181 transitions. [2022-03-03 17:01:52,770 INFO L78 Accepts]: Start accepts. Automaton has 6510 states and 18181 transitions. Word has length 91 [2022-03-03 17:01:52,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:52,770 INFO L470 AbstractCegarLoop]: Abstraction has 6510 states and 18181 transitions. [2022-03-03 17:01:52,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:52,770 INFO L276 IsEmpty]: Start isEmpty. Operand 6510 states and 18181 transitions. [2022-03-03 17:01:52,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:52,781 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:52,782 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] [2022-03-03 17:01:52,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-03 17:01:52,782 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:52,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2000597709, now seen corresponding path program 7 times [2022-03-03 17:01:52,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:52,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773952353] [2022-03-03 17:01:52,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:52,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:52,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:52,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773952353] [2022-03-03 17:01:52,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773952353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:52,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:52,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:52,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241990849] [2022-03-03 17:01:52,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:52,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:52,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:52,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:52,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:52,868 INFO L87 Difference]: Start difference. First operand 6510 states and 18181 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:53,092 INFO L93 Difference]: Finished difference Result 9609 states and 26304 transitions. [2022-03-03 17:01:53,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 17:01:53,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:53,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:53,113 INFO L225 Difference]: With dead ends: 9609 [2022-03-03 17:01:53,113 INFO L226 Difference]: Without dead ends: 9161 [2022-03-03 17:01:53,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:01:53,114 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 510 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 2192 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:53,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [510 Valid, 2192 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:53,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9161 states. [2022-03-03 17:01:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9161 to 6692. [2022-03-03 17:01:53,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 2.7921088028695262) internal successors, (18682), 6691 states have internal predecessors, (18682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 18682 transitions. [2022-03-03 17:01:53,259 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 18682 transitions. Word has length 91 [2022-03-03 17:01:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:53,259 INFO L470 AbstractCegarLoop]: Abstraction has 6692 states and 18682 transitions. [2022-03-03 17:01:53,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 18682 transitions. [2022-03-03 17:01:53,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:53,271 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:53,271 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] [2022-03-03 17:01:53,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 17:01:53,271 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:53,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:53,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1572183189, now seen corresponding path program 1 times [2022-03-03 17:01:53,272 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:53,272 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101780157] [2022-03-03 17:01:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:53,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:53,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:53,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:53,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101780157] [2022-03-03 17:01:53,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101780157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:53,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:53,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:01:53,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746424731] [2022-03-03 17:01:53,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:53,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:01:53,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:53,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:01:53,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:01:53,292 INFO L87 Difference]: Start difference. First operand 6692 states and 18682 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:53,334 INFO L93 Difference]: Finished difference Result 9132 states and 24899 transitions. [2022-03-03 17:01:53,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:01:53,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:53,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:53,358 INFO L225 Difference]: With dead ends: 9132 [2022-03-03 17:01:53,358 INFO L226 Difference]: Without dead ends: 9089 [2022-03-03 17:01:53,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:01:53,359 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 112 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:53,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 328 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:01:53,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9089 states. [2022-03-03 17:01:53,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9089 to 6838. [2022-03-03 17:01:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6838 states, 6837 states have (on average 2.7703671200819073) internal successors, (18941), 6837 states have internal predecessors, (18941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6838 states to 6838 states and 18941 transitions. [2022-03-03 17:01:53,504 INFO L78 Accepts]: Start accepts. Automaton has 6838 states and 18941 transitions. Word has length 91 [2022-03-03 17:01:53,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:53,504 INFO L470 AbstractCegarLoop]: Abstraction has 6838 states and 18941 transitions. [2022-03-03 17:01:53,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,504 INFO L276 IsEmpty]: Start isEmpty. Operand 6838 states and 18941 transitions. [2022-03-03 17:01:53,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:53,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:53,516 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] [2022-03-03 17:01:53,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 17:01:53,516 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:53,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:53,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1923734219, now seen corresponding path program 1 times [2022-03-03 17:01:53,517 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:53,563 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290598141] [2022-03-03 17:01:53,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:53,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:53,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:53,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290598141] [2022-03-03 17:01:53,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290598141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:53,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:53,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:01:53,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144483701] [2022-03-03 17:01:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:53,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:01:53,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:01:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:01:53,586 INFO L87 Difference]: Start difference. First operand 6838 states and 18941 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:53,626 INFO L93 Difference]: Finished difference Result 9309 states and 25233 transitions. [2022-03-03 17:01:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:01:53,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:53,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:53,643 INFO L225 Difference]: With dead ends: 9309 [2022-03-03 17:01:53,644 INFO L226 Difference]: Without dead ends: 9122 [2022-03-03 17:01:53,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:01:53,644 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 118 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:53,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 324 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:01:53,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9122 states. [2022-03-03 17:01:53,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9122 to 6836. [2022-03-03 17:01:53,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6836 states, 6835 states have (on average 2.7678127286027796) internal successors, (18918), 6835 states have internal predecessors, (18918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6836 states to 6836 states and 18918 transitions. [2022-03-03 17:01:53,796 INFO L78 Accepts]: Start accepts. Automaton has 6836 states and 18918 transitions. Word has length 91 [2022-03-03 17:01:53,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:53,796 INFO L470 AbstractCegarLoop]: Abstraction has 6836 states and 18918 transitions. [2022-03-03 17:01:53,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,797 INFO L276 IsEmpty]: Start isEmpty. Operand 6836 states and 18918 transitions. [2022-03-03 17:01:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:53,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:53,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:53,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-03 17:01:53,807 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:53,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:53,807 INFO L85 PathProgramCache]: Analyzing trace with hash 622771421, now seen corresponding path program 1 times [2022-03-03 17:01:53,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:53,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590620634] [2022-03-03 17:01:53,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:53,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:53,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:53,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:53,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590620634] [2022-03-03 17:01:53,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590620634] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:53,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:53,825 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:01:53,825 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162028379] [2022-03-03 17:01:53,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:53,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:01:53,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:53,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:01:53,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:01:53,826 INFO L87 Difference]: Start difference. First operand 6836 states and 18918 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:53,859 INFO L93 Difference]: Finished difference Result 6570 states and 17521 transitions. [2022-03-03 17:01:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:01:53,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:53,869 INFO L225 Difference]: With dead ends: 6570 [2022-03-03 17:01:53,869 INFO L226 Difference]: Without dead ends: 6570 [2022-03-03 17:01:53,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:01:53,870 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 95 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:53,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 253 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:01:53,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6570 states. [2022-03-03 17:01:53,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6570 to 6205. [2022-03-03 17:01:53,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 2.6832688588007736) internal successors, (16647), 6204 states have internal predecessors, (16647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 16647 transitions. [2022-03-03 17:01:53,979 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 16647 transitions. Word has length 91 [2022-03-03 17:01:53,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:53,979 INFO L470 AbstractCegarLoop]: Abstraction has 6205 states and 16647 transitions. [2022-03-03 17:01:53,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:53,980 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 16647 transitions. [2022-03-03 17:01:53,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:53,987 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:53,987 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] [2022-03-03 17:01:53,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 17:01:53,988 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:53,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:53,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1752945699, now seen corresponding path program 1 times [2022-03-03 17:01:53,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:53,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856092340] [2022-03-03 17:01:53,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:53,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:53,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:54,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:54,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856092340] [2022-03-03 17:01:54,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856092340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:54,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:54,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:54,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2168714] [2022-03-03 17:01:54,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:54,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:54,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:54,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:54,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:54,091 INFO L87 Difference]: Start difference. First operand 6205 states and 16647 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:54,261 INFO L93 Difference]: Finished difference Result 7012 states and 18742 transitions. [2022-03-03 17:01:54,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:01:54,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:54,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:54,275 INFO L225 Difference]: With dead ends: 7012 [2022-03-03 17:01:54,275 INFO L226 Difference]: Without dead ends: 6752 [2022-03-03 17:01:54,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-03 17:01:54,276 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 117 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1148 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 [2022-03-03 17:01:54,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 1148 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:54,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6752 states. [2022-03-03 17:01:54,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6752 to 6217. [2022-03-03 17:01:54,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6217 states, 6216 states have (on average 2.6827541827541825) internal successors, (16676), 6216 states have internal predecessors, (16676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6217 states to 6217 states and 16676 transitions. [2022-03-03 17:01:54,394 INFO L78 Accepts]: Start accepts. Automaton has 6217 states and 16676 transitions. Word has length 91 [2022-03-03 17:01:54,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:54,394 INFO L470 AbstractCegarLoop]: Abstraction has 6217 states and 16676 transitions. [2022-03-03 17:01:54,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6217 states and 16676 transitions. [2022-03-03 17:01:54,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:54,403 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:54,403 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:54,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-03 17:01:54,404 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:54,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:54,404 INFO L85 PathProgramCache]: Analyzing trace with hash 373173125, now seen corresponding path program 2 times [2022-03-03 17:01:54,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:54,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082692827] [2022-03-03 17:01:54,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:54,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:54,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:54,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:54,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082692827] [2022-03-03 17:01:54,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082692827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:54,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:54,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:54,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675208117] [2022-03-03 17:01:54,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:54,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:54,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:54,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:54,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:54,513 INFO L87 Difference]: Start difference. First operand 6217 states and 16676 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:54,721 INFO L93 Difference]: Finished difference Result 6982 states and 18664 transitions. [2022-03-03 17:01:54,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:01:54,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:54,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:54,735 INFO L225 Difference]: With dead ends: 6982 [2022-03-03 17:01:54,736 INFO L226 Difference]: Without dead ends: 6721 [2022-03-03 17:01:54,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:54,736 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 105 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:54,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1535 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:54,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2022-03-03 17:01:54,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 6213. [2022-03-03 17:01:54,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 2.6827108821635544) internal successors, (16665), 6212 states have internal predecessors, (16665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 16665 transitions. [2022-03-03 17:01:54,856 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 16665 transitions. Word has length 91 [2022-03-03 17:01:54,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:54,857 INFO L470 AbstractCegarLoop]: Abstraction has 6213 states and 16665 transitions. [2022-03-03 17:01:54,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:54,857 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 16665 transitions. [2022-03-03 17:01:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:54,865 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:54,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:54,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 17:01:54,866 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:54,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:54,866 INFO L85 PathProgramCache]: Analyzing trace with hash -373819413, now seen corresponding path program 3 times [2022-03-03 17:01:54,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:54,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680952075] [2022-03-03 17:01:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:54,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:54,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:54,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:54,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680952075] [2022-03-03 17:01:54,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680952075] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:54,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:54,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:54,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469871143] [2022-03-03 17:01:54,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:54,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:54,957 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:54,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:54,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:54,958 INFO L87 Difference]: Start difference. First operand 6213 states and 16665 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:55,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:55,159 INFO L93 Difference]: Finished difference Result 7034 states and 18791 transitions. [2022-03-03 17:01:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 17:01:55,159 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:55,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:55,171 INFO L225 Difference]: With dead ends: 7034 [2022-03-03 17:01:55,171 INFO L226 Difference]: Without dead ends: 6745 [2022-03-03 17:01:55,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:01:55,172 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 142 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:55,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 1384 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6745 states. [2022-03-03 17:01:55,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6745 to 6209. [2022-03-03 17:01:55,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6209 states, 6208 states have (on average 2.682667525773196) internal successors, (16654), 6208 states have internal predecessors, (16654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:55,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6209 states to 6209 states and 16654 transitions. [2022-03-03 17:01:55,281 INFO L78 Accepts]: Start accepts. Automaton has 6209 states and 16654 transitions. Word has length 91 [2022-03-03 17:01:55,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:55,281 INFO L470 AbstractCegarLoop]: Abstraction has 6209 states and 16654 transitions. [2022-03-03 17:01:55,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 6209 states and 16654 transitions. [2022-03-03 17:01:55,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:55,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:55,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:55,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-03 17:01:55,289 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:55,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:55,290 INFO L85 PathProgramCache]: Analyzing trace with hash -1638310291, now seen corresponding path program 4 times [2022-03-03 17:01:55,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:55,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645426827] [2022-03-03 17:01:55,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:55,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:55,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:55,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:55,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645426827] [2022-03-03 17:01:55,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645426827] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:55,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:55,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:55,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771486259] [2022-03-03 17:01:55,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:55,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:55,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:55,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:55,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:55,376 INFO L87 Difference]: Start difference. First operand 6209 states and 16654 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:55,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:55,615 INFO L93 Difference]: Finished difference Result 7132 states and 19043 transitions. [2022-03-03 17:01:55,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 17:01:55,616 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:55,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:55,629 INFO L225 Difference]: With dead ends: 7132 [2022-03-03 17:01:55,629 INFO L226 Difference]: Without dead ends: 6841 [2022-03-03 17:01:55,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-03 17:01:55,630 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 166 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1899 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:55,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 1899 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:55,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6841 states. [2022-03-03 17:01:55,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6841 to 6213. [2022-03-03 17:01:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 2.6820669671603348) internal successors, (16661), 6212 states have internal predecessors, (16661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:55,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 16661 transitions. [2022-03-03 17:01:55,762 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 16661 transitions. Word has length 91 [2022-03-03 17:01:55,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:55,762 INFO L470 AbstractCegarLoop]: Abstraction has 6213 states and 16661 transitions. [2022-03-03 17:01:55,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:55,762 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 16661 transitions. [2022-03-03 17:01:55,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:55,770 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:55,771 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] [2022-03-03 17:01:55,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-03 17:01:55,771 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:55,771 INFO L85 PathProgramCache]: Analyzing trace with hash 240079225, now seen corresponding path program 5 times [2022-03-03 17:01:55,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:55,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062024842] [2022-03-03 17:01:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:55,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:55,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:55,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:55,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062024842] [2022-03-03 17:01:55,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062024842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:55,861 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:55,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:55,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221359052] [2022-03-03 17:01:55,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:55,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:55,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:55,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:55,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:55,862 INFO L87 Difference]: Start difference. First operand 6213 states and 16661 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:56,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:56,105 INFO L93 Difference]: Finished difference Result 7016 states and 18745 transitions. [2022-03-03 17:01:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:01:56,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:56,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:56,116 INFO L225 Difference]: With dead ends: 7016 [2022-03-03 17:01:56,116 INFO L226 Difference]: Without dead ends: 6756 [2022-03-03 17:01:56,116 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 [2022-03-03 17:01:56,117 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 119 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:56,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 1853 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:56,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6756 states. [2022-03-03 17:01:56,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6756 to 6217. [2022-03-03 17:01:56,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6217 states, 6216 states have (on average 2.6814671814671813) internal successors, (16668), 6216 states have internal predecessors, (16668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:56,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6217 states to 6217 states and 16668 transitions. [2022-03-03 17:01:56,211 INFO L78 Accepts]: Start accepts. Automaton has 6217 states and 16668 transitions. Word has length 91 [2022-03-03 17:01:56,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:56,211 INFO L470 AbstractCegarLoop]: Abstraction has 6217 states and 16668 transitions. [2022-03-03 17:01:56,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 6217 states and 16668 transitions. [2022-03-03 17:01:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:56,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:56,220 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:56,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 17:01:56,220 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:56,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:56,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1928769247, now seen corresponding path program 6 times [2022-03-03 17:01:56,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:56,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160426260] [2022-03-03 17:01:56,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:56,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:56,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:56,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:56,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:56,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160426260] [2022-03-03 17:01:56,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160426260] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:56,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:56,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:56,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8184685] [2022-03-03 17:01:56,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:56,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:56,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:56,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:56,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:56,349 INFO L87 Difference]: Start difference. First operand 6217 states and 16668 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:56,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:56,555 INFO L93 Difference]: Finished difference Result 6962 states and 18601 transitions. [2022-03-03 17:01:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:01:56,556 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:56,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:56,565 INFO L225 Difference]: With dead ends: 6962 [2022-03-03 17:01:56,565 INFO L226 Difference]: Without dead ends: 6693 [2022-03-03 17:01:56,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:01:56,566 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 102 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1815 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 [2022-03-03 17:01:56,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1815 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:56,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6693 states. [2022-03-03 17:01:56,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6693 to 6205. [2022-03-03 17:01:56,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 6204 states have (on average 2.6826241134751774) internal successors, (16643), 6204 states have internal predecessors, (16643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:56,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 16643 transitions. [2022-03-03 17:01:56,657 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 16643 transitions. Word has length 91 [2022-03-03 17:01:56,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:56,657 INFO L470 AbstractCegarLoop]: Abstraction has 6205 states and 16643 transitions. [2022-03-03 17:01:56,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:56,657 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 16643 transitions. [2022-03-03 17:01:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:56,665 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:56,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:56,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-03 17:01:56,665 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:56,666 INFO L85 PathProgramCache]: Analyzing trace with hash -249019585, now seen corresponding path program 7 times [2022-03-03 17:01:56,666 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:56,666 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301748446] [2022-03-03 17:01:56,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:56,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:56,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:56,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:56,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301748446] [2022-03-03 17:01:56,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301748446] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:56,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:56,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:56,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115854316] [2022-03-03 17:01:56,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:56,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:56,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:56,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:56,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:56,754 INFO L87 Difference]: Start difference. First operand 6205 states and 16643 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:57,048 INFO L93 Difference]: Finished difference Result 7704 states and 20375 transitions. [2022-03-03 17:01:57,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-03 17:01:57,048 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:57,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:57,059 INFO L225 Difference]: With dead ends: 7704 [2022-03-03 17:01:57,059 INFO L226 Difference]: Without dead ends: 7278 [2022-03-03 17:01:57,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-03 17:01:57,060 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 363 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:57,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 2368 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:57,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7278 states. [2022-03-03 17:01:57,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7278 to 6105. [2022-03-03 17:01:57,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6105 states, 6104 states have (on average 2.686762778505898) internal successors, (16400), 6104 states have internal predecessors, (16400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6105 states to 6105 states and 16400 transitions. [2022-03-03 17:01:57,157 INFO L78 Accepts]: Start accepts. Automaton has 6105 states and 16400 transitions. Word has length 91 [2022-03-03 17:01:57,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:57,157 INFO L470 AbstractCegarLoop]: Abstraction has 6105 states and 16400 transitions. [2022-03-03 17:01:57,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,157 INFO L276 IsEmpty]: Start isEmpty. Operand 6105 states and 16400 transitions. [2022-03-03 17:01:57,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:57,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:57,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:57,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-03 17:01:57,165 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:57,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:57,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1585866057, now seen corresponding path program 8 times [2022-03-03 17:01:57,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:57,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848926688] [2022-03-03 17:01:57,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:57,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:57,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:57,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:57,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848926688] [2022-03-03 17:01:57,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848926688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:57,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:57,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:57,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880879722] [2022-03-03 17:01:57,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:57,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:57,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:57,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:57,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:57,264 INFO L87 Difference]: Start difference. First operand 6105 states and 16400 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:57,570 INFO L93 Difference]: Finished difference Result 6956 states and 18591 transitions. [2022-03-03 17:01:57,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 17:01:57,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:57,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:57,581 INFO L225 Difference]: With dead ends: 6956 [2022-03-03 17:01:57,581 INFO L226 Difference]: Without dead ends: 6665 [2022-03-03 17:01:57,581 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2022-03-03 17:01:57,582 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 198 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2150 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:57,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 2150 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:57,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6665 states. [2022-03-03 17:01:57,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6665 to 6109. [2022-03-03 17:01:57,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6109 states, 6108 states have (on average 2.68614931237721) internal successors, (16407), 6108 states have internal predecessors, (16407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6109 states to 6109 states and 16407 transitions. [2022-03-03 17:01:57,683 INFO L78 Accepts]: Start accepts. Automaton has 6109 states and 16407 transitions. Word has length 91 [2022-03-03 17:01:57,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:57,683 INFO L470 AbstractCegarLoop]: Abstraction has 6109 states and 16407 transitions. [2022-03-03 17:01:57,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,683 INFO L276 IsEmpty]: Start isEmpty. Operand 6109 states and 16407 transitions. [2022-03-03 17:01:57,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:57,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:57,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:57,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-03 17:01:57,690 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:57,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:57,691 INFO L85 PathProgramCache]: Analyzing trace with hash 292523459, now seen corresponding path program 9 times [2022-03-03 17:01:57,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:57,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11384842] [2022-03-03 17:01:57,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:57,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:57,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:57,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:57,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11384842] [2022-03-03 17:01:57,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11384842] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:57,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:57,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:57,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053627136] [2022-03-03 17:01:57,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:57,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:57,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:57,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:57,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:57,779 INFO L87 Difference]: Start difference. First operand 6109 states and 16407 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:57,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:57,977 INFO L93 Difference]: Finished difference Result 6840 states and 18293 transitions. [2022-03-03 17:01:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:01:57,977 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:57,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:57,988 INFO L225 Difference]: With dead ends: 6840 [2022-03-03 17:01:57,988 INFO L226 Difference]: Without dead ends: 6580 [2022-03-03 17:01:57,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:01:57,989 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 149 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1897 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:57,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 1897 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:57,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2022-03-03 17:01:58,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 6113. [2022-03-03 17:01:58,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6113 states, 6112 states have (on average 2.6855366492146597) internal successors, (16414), 6112 states have internal predecessors, (16414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6113 states to 6113 states and 16414 transitions. [2022-03-03 17:01:58,080 INFO L78 Accepts]: Start accepts. Automaton has 6113 states and 16414 transitions. Word has length 91 [2022-03-03 17:01:58,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:58,081 INFO L470 AbstractCegarLoop]: Abstraction has 6113 states and 16414 transitions. [2022-03-03 17:01:58,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,081 INFO L276 IsEmpty]: Start isEmpty. Operand 6113 states and 16414 transitions. [2022-03-03 17:01:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:58,088 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:58,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:58,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-03 17:01:58,089 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:58,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:58,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1876325013, now seen corresponding path program 10 times [2022-03-03 17:01:58,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:58,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164350383] [2022-03-03 17:01:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:58,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:58,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:58,160 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:58,160 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164350383] [2022-03-03 17:01:58,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164350383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:58,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:58,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:58,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568884213] [2022-03-03 17:01:58,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:58,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:58,161 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:58,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:58,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:58,161 INFO L87 Difference]: Start difference. First operand 6113 states and 16414 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:58,317 INFO L93 Difference]: Finished difference Result 6786 states and 18149 transitions. [2022-03-03 17:01:58,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 17:01:58,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:58,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:58,328 INFO L225 Difference]: With dead ends: 6786 [2022-03-03 17:01:58,328 INFO L226 Difference]: Without dead ends: 6485 [2022-03-03 17:01:58,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:01:58,328 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 140 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:58,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 1463 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:01:58,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6485 states. [2022-03-03 17:01:58,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6485 to 6069. [2022-03-03 17:01:58,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6069 states, 6068 states have (on average 2.688529993408042) internal successors, (16314), 6068 states have internal predecessors, (16314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6069 states to 6069 states and 16314 transitions. [2022-03-03 17:01:58,414 INFO L78 Accepts]: Start accepts. Automaton has 6069 states and 16314 transitions. Word has length 91 [2022-03-03 17:01:58,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:58,415 INFO L470 AbstractCegarLoop]: Abstraction has 6069 states and 16314 transitions. [2022-03-03 17:01:58,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,415 INFO L276 IsEmpty]: Start isEmpty. Operand 6069 states and 16314 transitions. [2022-03-03 17:01:58,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:58,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:58,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:58,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-03 17:01:58,423 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:58,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1406793127, now seen corresponding path program 11 times [2022-03-03 17:01:58,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:58,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023101801] [2022-03-03 17:01:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:58,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:58,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:58,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:58,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023101801] [2022-03-03 17:01:58,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023101801] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:58,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:58,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:58,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644655347] [2022-03-03 17:01:58,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:58,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:58,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:58,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:58,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:58,506 INFO L87 Difference]: Start difference. First operand 6069 states and 16314 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:58,705 INFO L93 Difference]: Finished difference Result 7195 states and 19271 transitions. [2022-03-03 17:01:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:01:58,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:58,718 INFO L225 Difference]: With dead ends: 7195 [2022-03-03 17:01:58,718 INFO L226 Difference]: Without dead ends: 6935 [2022-03-03 17:01:58,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-03 17:01:58,719 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 131 mSDsluCounter, 1262 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:58,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1456 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:58,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2022-03-03 17:01:58,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6089. [2022-03-03 17:01:58,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 2.6880749014454666) internal successors, (16365), 6088 states have internal predecessors, (16365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 16365 transitions. [2022-03-03 17:01:58,821 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 16365 transitions. Word has length 91 [2022-03-03 17:01:58,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:58,821 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 16365 transitions. [2022-03-03 17:01:58,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:58,821 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 16365 transitions. [2022-03-03 17:01:58,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:58,829 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:58,829 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:01:58,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-03 17:01:58,829 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:58,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash -762055345, now seen corresponding path program 12 times [2022-03-03 17:01:58,830 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:58,830 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332261224] [2022-03-03 17:01:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:58,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:58,972 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:58,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332261224] [2022-03-03 17:01:58,972 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332261224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:58,973 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:58,973 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:58,973 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318221029] [2022-03-03 17:01:58,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:58,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:58,973 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:58,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:58,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:58,974 INFO L87 Difference]: Start difference. First operand 6089 states and 16365 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:59,298 INFO L93 Difference]: Finished difference Result 7165 states and 19193 transitions. [2022-03-03 17:01:59,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:01:59,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:59,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:59,311 INFO L225 Difference]: With dead ends: 7165 [2022-03-03 17:01:59,312 INFO L226 Difference]: Without dead ends: 6904 [2022-03-03 17:01:59,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:01:59,312 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 116 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1844 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:59,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 1844 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:01:59,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6904 states. [2022-03-03 17:01:59,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6904 to 6085. [2022-03-03 17:01:59,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 2.6880341880341883) internal successors, (16354), 6084 states have internal predecessors, (16354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 16354 transitions. [2022-03-03 17:01:59,457 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 16354 transitions. Word has length 91 [2022-03-03 17:01:59,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:59,457 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 16354 transitions. [2022-03-03 17:01:59,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,457 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 16354 transitions. [2022-03-03 17:01:59,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:59,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:59,464 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] [2022-03-03 17:01:59,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-03 17:01:59,464 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:59,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:59,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1509047883, now seen corresponding path program 13 times [2022-03-03 17:01:59,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:59,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529002888] [2022-03-03 17:01:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:59,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:59,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:59,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529002888] [2022-03-03 17:01:59,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529002888] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:59,541 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:59,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:59,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309497606] [2022-03-03 17:01:59,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:59,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:59,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:59,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:59,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:59,542 INFO L87 Difference]: Start difference. First operand 6085 states and 16354 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:01:59,766 INFO L93 Difference]: Finished difference Result 7249 states and 19408 transitions. [2022-03-03 17:01:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 17:01:59,766 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:01:59,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:01:59,778 INFO L225 Difference]: With dead ends: 7249 [2022-03-03 17:01:59,779 INFO L226 Difference]: Without dead ends: 6960 [2022-03-03 17:01:59,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-03 17:01:59,779 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 154 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1870 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:01:59,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 1870 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:01:59,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6960 states. [2022-03-03 17:01:59,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6960 to 6081. [2022-03-03 17:01:59,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6081 states, 6080 states have (on average 2.6879934210526315) internal successors, (16343), 6080 states have internal predecessors, (16343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6081 states to 6081 states and 16343 transitions. [2022-03-03 17:01:59,874 INFO L78 Accepts]: Start accepts. Automaton has 6081 states and 16343 transitions. Word has length 91 [2022-03-03 17:01:59,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:01:59,874 INFO L470 AbstractCegarLoop]: Abstraction has 6081 states and 16343 transitions. [2022-03-03 17:01:59,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:01:59,874 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states and 16343 transitions. [2022-03-03 17:01:59,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:01:59,881 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:01:59,881 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] [2022-03-03 17:01:59,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-03 17:01:59,882 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:01:59,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:01:59,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1521428535, now seen corresponding path program 14 times [2022-03-03 17:01:59,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:01:59,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376284782] [2022-03-03 17:01:59,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:01:59,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:01:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:01:59,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:01:59,962 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:01:59,962 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376284782] [2022-03-03 17:01:59,963 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376284782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:01:59,963 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:01:59,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:01:59,963 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169123058] [2022-03-03 17:01:59,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:01:59,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:01:59,963 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:01:59,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:01:59,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:01:59,963 INFO L87 Difference]: Start difference. First operand 6081 states and 16343 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:00,181 INFO L93 Difference]: Finished difference Result 7239 states and 19363 transitions. [2022-03-03 17:02:00,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 17:02:00,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:00,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:00,193 INFO L225 Difference]: With dead ends: 7239 [2022-03-03 17:02:00,194 INFO L226 Difference]: Without dead ends: 6948 [2022-03-03 17:02:00,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:02:00,194 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 172 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1512 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 [2022-03-03 17:02:00,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 1512 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:00,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6948 states. [2022-03-03 17:02:00,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6948 to 6085. [2022-03-03 17:02:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 2.687376725838264) internal successors, (16350), 6084 states have internal predecessors, (16350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 16350 transitions. [2022-03-03 17:02:00,286 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 16350 transitions. Word has length 91 [2022-03-03 17:02:00,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:00,286 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 16350 transitions. [2022-03-03 17:02:00,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,286 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 16350 transitions. [2022-03-03 17:02:00,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:00,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:00,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:00,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-03 17:02:00,293 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:00,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:00,293 INFO L85 PathProgramCache]: Analyzing trace with hash -895149245, now seen corresponding path program 15 times [2022-03-03 17:02:00,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:00,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669637114] [2022-03-03 17:02:00,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:00,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:00,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:00,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:00,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669637114] [2022-03-03 17:02:00,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669637114] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:00,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:00,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:00,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318886346] [2022-03-03 17:02:00,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:00,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:00,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:00,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:00,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:00,380 INFO L87 Difference]: Start difference. First operand 6085 states and 16350 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:00,574 INFO L93 Difference]: Finished difference Result 7155 states and 19153 transitions. [2022-03-03 17:02:00,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:02:00,574 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:00,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:00,587 INFO L225 Difference]: With dead ends: 7155 [2022-03-03 17:02:00,587 INFO L226 Difference]: Without dead ends: 6895 [2022-03-03 17:02:00,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:02:00,591 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 146 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:00,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1664 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:00,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2022-03-03 17:02:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 6089. [2022-03-03 17:02:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 2.686760840998686) internal successors, (16357), 6088 states have internal predecessors, (16357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 16357 transitions. [2022-03-03 17:02:00,680 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 16357 transitions. Word has length 91 [2022-03-03 17:02:00,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:00,681 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 16357 transitions. [2022-03-03 17:02:00,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,681 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 16357 transitions. [2022-03-03 17:02:00,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:00,687 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:00,687 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] [2022-03-03 17:02:00,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-03 17:02:00,687 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:00,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1230969579, now seen corresponding path program 16 times [2022-03-03 17:02:00,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:00,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333897266] [2022-03-03 17:02:00,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:00,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:00,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:00,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333897266] [2022-03-03 17:02:00,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333897266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:00,768 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:00,768 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:00,768 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87545939] [2022-03-03 17:02:00,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:00,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:00,768 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:00,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:00,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:00,769 INFO L87 Difference]: Start difference. First operand 6089 states and 16357 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:00,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:00,920 INFO L93 Difference]: Finished difference Result 7117 states and 19053 transitions. [2022-03-03 17:02:00,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:02:00,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:00,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:00,933 INFO L225 Difference]: With dead ends: 7117 [2022-03-03 17:02:00,933 INFO L226 Difference]: Without dead ends: 6848 [2022-03-03 17:02:00,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-03 17:02:00,934 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 117 mSDsluCounter, 955 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:00,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 1154 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2022-03-03 17:02:01,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 6077. [2022-03-03 17:02:01,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6076 states have (on average 2.6879526003949965) internal successors, (16332), 6076 states have internal predecessors, (16332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 16332 transitions. [2022-03-03 17:02:01,023 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 16332 transitions. Word has length 91 [2022-03-03 17:02:01,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:01,023 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 16332 transitions. [2022-03-03 17:02:01,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,023 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 16332 transitions. [2022-03-03 17:02:01,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:01,030 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:01,030 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] [2022-03-03 17:02:01,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-03 17:02:01,031 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:01,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:01,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1849223639, now seen corresponding path program 17 times [2022-03-03 17:02:01,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:01,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124892370] [2022-03-03 17:02:01,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:01,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:01,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:01,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124892370] [2022-03-03 17:02:01,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124892370] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:01,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:01,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:01,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636386142] [2022-03-03 17:02:01,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:01,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:01,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:01,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:01,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:01,112 INFO L87 Difference]: Start difference. First operand 6077 states and 16332 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:01,299 INFO L93 Difference]: Finished difference Result 7099 states and 19003 transitions. [2022-03-03 17:02:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 17:02:01,300 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:01,312 INFO L225 Difference]: With dead ends: 7099 [2022-03-03 17:02:01,312 INFO L226 Difference]: Without dead ends: 6839 [2022-03-03 17:02:01,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-03 17:02:01,313 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 180 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:01,313 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 1960 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:01,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2022-03-03 17:02:01,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6093. [2022-03-03 17:02:01,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6093 states, 6092 states have (on average 2.687458962573867) internal successors, (16372), 6092 states have internal predecessors, (16372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6093 states to 6093 states and 16372 transitions. [2022-03-03 17:02:01,409 INFO L78 Accepts]: Start accepts. Automaton has 6093 states and 16372 transitions. Word has length 91 [2022-03-03 17:02:01,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:01,409 INFO L470 AbstractCegarLoop]: Abstraction has 6093 states and 16372 transitions. [2022-03-03 17:02:01,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6093 states and 16372 transitions. [2022-03-03 17:02:01,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:01,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:01,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:01,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-03 17:02:01,417 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:01,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:01,417 INFO L85 PathProgramCache]: Analyzing trace with hash 276895185, now seen corresponding path program 18 times [2022-03-03 17:02:01,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:01,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129975762] [2022-03-03 17:02:01,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:01,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:01,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:01,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:01,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129975762] [2022-03-03 17:02:01,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129975762] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:01,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:01,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:01,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370283971] [2022-03-03 17:02:01,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:01,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:01,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:01,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:01,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:01,503 INFO L87 Difference]: Start difference. First operand 6093 states and 16372 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:01,679 INFO L93 Difference]: Finished difference Result 7073 states and 18936 transitions. [2022-03-03 17:02:01,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:02:01,679 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:01,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:01,690 INFO L225 Difference]: With dead ends: 7073 [2022-03-03 17:02:01,690 INFO L226 Difference]: Without dead ends: 6812 [2022-03-03 17:02:01,691 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:02:01,691 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 191 mSDsluCounter, 1380 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:01,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 1591 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6812 states. [2022-03-03 17:02:01,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6812 to 6089. [2022-03-03 17:02:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6089 states, 6088 states have (on average 2.687417871222076) internal successors, (16361), 6088 states have internal predecessors, (16361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 16361 transitions. [2022-03-03 17:02:01,784 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 16361 transitions. Word has length 91 [2022-03-03 17:02:01,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:01,784 INFO L470 AbstractCegarLoop]: Abstraction has 6089 states and 16361 transitions. [2022-03-03 17:02:01,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:01,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 16361 transitions. [2022-03-03 17:02:01,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:01,791 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:01,791 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:01,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-03 17:02:01,792 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:01,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:01,792 INFO L85 PathProgramCache]: Analyzing trace with hash -470097353, now seen corresponding path program 19 times [2022-03-03 17:02:01,792 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:01,792 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593692] [2022-03-03 17:02:01,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:01,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:01,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:01,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593692] [2022-03-03 17:02:01,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:01,868 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:01,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:01,868 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518696796] [2022-03-03 17:02:01,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:01,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:01,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:01,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:01,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:01,869 INFO L87 Difference]: Start difference. First operand 6089 states and 16361 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:02,082 INFO L93 Difference]: Finished difference Result 7097 states and 18998 transitions. [2022-03-03 17:02:02,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 17:02:02,083 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:02,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:02,095 INFO L225 Difference]: With dead ends: 7097 [2022-03-03 17:02:02,096 INFO L226 Difference]: Without dead ends: 6808 [2022-03-03 17:02:02,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:02,100 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 226 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:02,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 1572 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:02,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6808 states. [2022-03-03 17:02:02,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6808 to 6085. [2022-03-03 17:02:02,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6085 states, 6084 states have (on average 2.687376725838264) internal successors, (16350), 6084 states have internal predecessors, (16350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6085 states to 6085 states and 16350 transitions. [2022-03-03 17:02:02,214 INFO L78 Accepts]: Start accepts. Automaton has 6085 states and 16350 transitions. Word has length 91 [2022-03-03 17:02:02,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:02,214 INFO L470 AbstractCegarLoop]: Abstraction has 6085 states and 16350 transitions. [2022-03-03 17:02:02,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 6085 states and 16350 transitions. [2022-03-03 17:02:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:02,221 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:02,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:02,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-03 17:02:02,222 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:02,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:02,222 INFO L85 PathProgramCache]: Analyzing trace with hash -213851739, now seen corresponding path program 20 times [2022-03-03 17:02:02,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:02,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711279266] [2022-03-03 17:02:02,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:02,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:02,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:02,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:02,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711279266] [2022-03-03 17:02:02,309 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711279266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:02,309 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:02,309 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:02,309 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840326810] [2022-03-03 17:02:02,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:02,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:02,310 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:02,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:02,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:02,310 INFO L87 Difference]: Start difference. First operand 6085 states and 16350 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:02,541 INFO L93 Difference]: Finished difference Result 7662 states and 20347 transitions. [2022-03-03 17:02:02,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-03 17:02:02,541 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:02,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:02,552 INFO L225 Difference]: With dead ends: 7662 [2022-03-03 17:02:02,552 INFO L226 Difference]: Without dead ends: 7229 [2022-03-03 17:02:02,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-03-03 17:02:02,553 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 389 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:02,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [389 Valid, 2317 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:02,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7229 states. [2022-03-03 17:02:02,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7229 to 5993. [2022-03-03 17:02:02,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5993 states, 5992 states have (on average 2.6899198931909214) internal successors, (16118), 5992 states have internal predecessors, (16118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5993 states to 5993 states and 16118 transitions. [2022-03-03 17:02:02,642 INFO L78 Accepts]: Start accepts. Automaton has 5993 states and 16118 transitions. Word has length 91 [2022-03-03 17:02:02,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:02,642 INFO L470 AbstractCegarLoop]: Abstraction has 5993 states and 16118 transitions. [2022-03-03 17:02:02,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,643 INFO L276 IsEmpty]: Start isEmpty. Operand 5993 states and 16118 transitions. [2022-03-03 17:02:02,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:02,650 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:02,650 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] [2022-03-03 17:02:02,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-03 17:02:02,650 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:02,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:02,651 INFO L85 PathProgramCache]: Analyzing trace with hash 882655945, now seen corresponding path program 1 times [2022-03-03 17:02:02,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:02,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767662975] [2022-03-03 17:02:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:02,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:02,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:02,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767662975] [2022-03-03 17:02:02,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767662975] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:02,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:02,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 17:02:02,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954832871] [2022-03-03 17:02:02,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:02,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 17:02:02,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:02,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 17:02:02,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:02:02,666 INFO L87 Difference]: Start difference. First operand 5993 states and 16118 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:02,688 INFO L93 Difference]: Finished difference Result 5339 states and 14002 transitions. [2022-03-03 17:02:02,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 17:02:02,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:02,695 INFO L225 Difference]: With dead ends: 5339 [2022-03-03 17:02:02,695 INFO L226 Difference]: Without dead ends: 5339 [2022-03-03 17:02:02,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 17:02:02,696 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 93 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:02,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 190 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2022-03-03 17:02:02,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2022-03-03 17:02:02,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.623079805170476) internal successors, (14002), 5338 states have internal predecessors, (14002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14002 transitions. [2022-03-03 17:02:02,765 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14002 transitions. Word has length 91 [2022-03-03 17:02:02,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:02,765 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 14002 transitions. [2022-03-03 17:02:02,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:02,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14002 transitions. [2022-03-03 17:02:02,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:02,771 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:02,771 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] [2022-03-03 17:02:02,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-03 17:02:02,771 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:02,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:02,771 INFO L85 PathProgramCache]: Analyzing trace with hash -694011287, now seen corresponding path program 1 times [2022-03-03 17:02:02,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:02,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201920737] [2022-03-03 17:02:02,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:02,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:02,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:02,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:02,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201920737] [2022-03-03 17:02:02,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201920737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:02,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:02,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:02,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648939235] [2022-03-03 17:02:02,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:02,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:02,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:02,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:02,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:02,851 INFO L87 Difference]: Start difference. First operand 5339 states and 14002 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:03,031 INFO L93 Difference]: Finished difference Result 5930 states and 15498 transitions. [2022-03-03 17:02:03,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 17:02:03,031 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:03,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:03,039 INFO L225 Difference]: With dead ends: 5930 [2022-03-03 17:02:03,039 INFO L226 Difference]: Without dead ends: 5651 [2022-03-03 17:02:03,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2022-03-03 17:02:03,040 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 133 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:03,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 1164 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:03,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5651 states. [2022-03-03 17:02:03,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5651 to 5347. [2022-03-03 17:02:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5346 states have (on average 2.6225215114104) internal successors, (14020), 5346 states have internal predecessors, (14020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14020 transitions. [2022-03-03 17:02:03,114 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14020 transitions. Word has length 91 [2022-03-03 17:02:03,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:03,115 INFO L470 AbstractCegarLoop]: Abstraction has 5347 states and 14020 transitions. [2022-03-03 17:02:03,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,115 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14020 transitions. [2022-03-03 17:02:03,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:03,120 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:03,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:03,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-03 17:02:03,120 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:03,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:03,121 INFO L85 PathProgramCache]: Analyzing trace with hash -985717315, now seen corresponding path program 2 times [2022-03-03 17:02:03,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:03,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576833595] [2022-03-03 17:02:03,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:03,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:03,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:03,198 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:03,198 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576833595] [2022-03-03 17:02:03,198 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576833595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:03,198 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:03,198 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:03,198 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430349827] [2022-03-03 17:02:03,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:03,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:03,199 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:03,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:03,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:03,199 INFO L87 Difference]: Start difference. First operand 5347 states and 14020 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:03,333 INFO L93 Difference]: Finished difference Result 5864 states and 15324 transitions. [2022-03-03 17:02:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:02:03,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:03,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:03,340 INFO L225 Difference]: With dead ends: 5864 [2022-03-03 17:02:03,341 INFO L226 Difference]: Without dead ends: 5610 [2022-03-03 17:02:03,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2022-03-03 17:02:03,341 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 100 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:03,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 1300 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:03,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2022-03-03 17:02:03,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5351. [2022-03-03 17:02:03,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5350 states have (on average 2.621869158878505) internal successors, (14027), 5350 states have internal predecessors, (14027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14027 transitions. [2022-03-03 17:02:03,411 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14027 transitions. Word has length 91 [2022-03-03 17:02:03,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:03,411 INFO L470 AbstractCegarLoop]: Abstraction has 5351 states and 14027 transitions. [2022-03-03 17:02:03,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14027 transitions. [2022-03-03 17:02:03,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:03,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:03,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:03,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-03 17:02:03,417 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:03,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:03,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1140401509, now seen corresponding path program 3 times [2022-03-03 17:02:03,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:03,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066335365] [2022-03-03 17:02:03,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:03,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:03,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:03,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:03,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066335365] [2022-03-03 17:02:03,550 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066335365] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:03,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:03,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:03,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213496143] [2022-03-03 17:02:03,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:03,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:03,551 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:03,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:03,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:03,551 INFO L87 Difference]: Start difference. First operand 5351 states and 14027 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:03,733 INFO L93 Difference]: Finished difference Result 5826 states and 15224 transitions. [2022-03-03 17:02:03,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:02:03,733 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:03,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:03,740 INFO L225 Difference]: With dead ends: 5826 [2022-03-03 17:02:03,740 INFO L226 Difference]: Without dead ends: 5567 [2022-03-03 17:02:03,741 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:02:03,741 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 87 mSDsluCounter, 942 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1113 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 [2022-03-03 17:02:03,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1113 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:03,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5567 states. [2022-03-03 17:02:03,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5567 to 5343. [2022-03-03 17:02:03,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6224260576563085) internal successors, (14009), 5342 states have internal predecessors, (14009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 14009 transitions. [2022-03-03 17:02:03,808 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 14009 transitions. Word has length 91 [2022-03-03 17:02:03,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:03,809 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 14009 transitions. [2022-03-03 17:02:03,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 14009 transitions. [2022-03-03 17:02:03,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:03,814 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:03,814 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] [2022-03-03 17:02:03,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-03 17:02:03,814 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:03,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:03,814 INFO L85 PathProgramCache]: Analyzing trace with hash 863471305, now seen corresponding path program 4 times [2022-03-03 17:02:03,814 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:03,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356167229] [2022-03-03 17:02:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:03,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:03,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:03,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356167229] [2022-03-03 17:02:03,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356167229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:03,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:03,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:03,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653796619] [2022-03-03 17:02:03,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:03,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:03,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:03,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:03,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:03,912 INFO L87 Difference]: Start difference. First operand 5343 states and 14009 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:04,137 INFO L93 Difference]: Finished difference Result 5961 states and 15572 transitions. [2022-03-03 17:02:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 17:02:04,137 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:04,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:04,145 INFO L225 Difference]: With dead ends: 5961 [2022-03-03 17:02:04,145 INFO L226 Difference]: Without dead ends: 5676 [2022-03-03 17:02:04,146 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 [2022-03-03 17:02:04,148 INFO L933 BasicCegarLoop]: 201 mSDtfsCounter, 137 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 1303 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 [2022-03-03 17:02:04,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 1303 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:04,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5676 states. [2022-03-03 17:02:04,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5676 to 5347. [2022-03-03 17:02:04,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5347 states, 5346 states have (on average 2.621773288439955) internal successors, (14016), 5346 states have internal predecessors, (14016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5347 states to 5347 states and 14016 transitions. [2022-03-03 17:02:04,220 INFO L78 Accepts]: Start accepts. Automaton has 5347 states and 14016 transitions. Word has length 91 [2022-03-03 17:02:04,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:04,221 INFO L470 AbstractCegarLoop]: Abstraction has 5347 states and 14016 transitions. [2022-03-03 17:02:04,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5347 states and 14016 transitions. [2022-03-03 17:02:04,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:04,226 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:04,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:04,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-03 17:02:04,226 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:04,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:04,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1480867477, now seen corresponding path program 5 times [2022-03-03 17:02:04,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:04,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681884877] [2022-03-03 17:02:04,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:04,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:04,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:04,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:04,372 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:04,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681884877] [2022-03-03 17:02:04,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681884877] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:04,372 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:04,372 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:04,372 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746240260] [2022-03-03 17:02:04,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:04,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:04,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:04,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:04,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:04,373 INFO L87 Difference]: Start difference. First operand 5347 states and 14016 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:04,621 INFO L93 Difference]: Finished difference Result 5872 states and 15342 transitions. [2022-03-03 17:02:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:02:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:04,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:04,629 INFO L225 Difference]: With dead ends: 5872 [2022-03-03 17:02:04,629 INFO L226 Difference]: Without dead ends: 5618 [2022-03-03 17:02:04,643 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 [2022-03-03 17:02:04,644 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 99 mSDsluCounter, 1286 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:04,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 1445 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:04,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2022-03-03 17:02:04,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 5351. [2022-03-03 17:02:04,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5351 states, 5350 states have (on average 2.621121495327103) internal successors, (14023), 5350 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5351 states to 5351 states and 14023 transitions. [2022-03-03 17:02:04,726 INFO L78 Accepts]: Start accepts. Automaton has 5351 states and 14023 transitions. Word has length 91 [2022-03-03 17:02:04,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:04,726 INFO L470 AbstractCegarLoop]: Abstraction has 5351 states and 14023 transitions. [2022-03-03 17:02:04,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 5351 states and 14023 transitions. [2022-03-03 17:02:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:04,731 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:04,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:04,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-03 17:02:04,732 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:04,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:04,733 INFO L85 PathProgramCache]: Analyzing trace with hash -687980995, now seen corresponding path program 6 times [2022-03-03 17:02:04,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:04,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451852468] [2022-03-03 17:02:04,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:04,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:04,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:04,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:04,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451852468] [2022-03-03 17:02:04,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451852468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:04,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:04,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:04,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086817246] [2022-03-03 17:02:04,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:04,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:04,885 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:04,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:04,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:04,886 INFO L87 Difference]: Start difference. First operand 5351 states and 14023 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:05,094 INFO L93 Difference]: Finished difference Result 5826 states and 15220 transitions. [2022-03-03 17:02:05,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:02:05,094 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:05,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:05,102 INFO L225 Difference]: With dead ends: 5826 [2022-03-03 17:02:05,102 INFO L226 Difference]: Without dead ends: 5563 [2022-03-03 17:02:05,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2022-03-03 17:02:05,104 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 83 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1268 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 [2022-03-03 17:02:05,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1268 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:05,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-03-03 17:02:05,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5339. [2022-03-03 17:02:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6223304608467592) internal successors, (13998), 5338 states have internal predecessors, (13998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13998 transitions. [2022-03-03 17:02:05,181 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13998 transitions. Word has length 91 [2022-03-03 17:02:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:05,181 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13998 transitions. [2022-03-03 17:02:05,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13998 transitions. [2022-03-03 17:02:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:05,187 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:05,187 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] [2022-03-03 17:02:05,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-03 17:02:05,187 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:05,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:05,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1823646655, now seen corresponding path program 7 times [2022-03-03 17:02:05,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:05,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481057119] [2022-03-03 17:02:05,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:05,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:05,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:05,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:05,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481057119] [2022-03-03 17:02:05,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481057119] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:05,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:05,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:05,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387909459] [2022-03-03 17:02:05,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:05,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:05,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:05,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:05,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:05,274 INFO L87 Difference]: Start difference. First operand 5339 states and 13998 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:05,492 INFO L93 Difference]: Finished difference Result 5957 states and 15474 transitions. [2022-03-03 17:02:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-03 17:02:05,492 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:05,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:05,500 INFO L225 Difference]: With dead ends: 5957 [2022-03-03 17:02:05,500 INFO L226 Difference]: Without dead ends: 5537 [2022-03-03 17:02:05,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-03-03 17:02:05,501 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 244 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:05,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 1340 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:05,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5537 states. [2022-03-03 17:02:05,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5537 to 5204. [2022-03-03 17:02:05,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5204 states, 5203 states have (on average 2.6263694022679225) internal successors, (13665), 5203 states have internal predecessors, (13665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 5204 states and 13665 transitions. [2022-03-03 17:02:05,572 INFO L78 Accepts]: Start accepts. Automaton has 5204 states and 13665 transitions. Word has length 91 [2022-03-03 17:02:05,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:05,573 INFO L470 AbstractCegarLoop]: Abstraction has 5204 states and 13665 transitions. [2022-03-03 17:02:05,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5204 states and 13665 transitions. [2022-03-03 17:02:05,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:05,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:05,578 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] [2022-03-03 17:02:05,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-03 17:02:05,578 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:05,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:05,578 INFO L85 PathProgramCache]: Analyzing trace with hash 975520439, now seen corresponding path program 8 times [2022-03-03 17:02:05,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:05,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379070110] [2022-03-03 17:02:05,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:05,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:05,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:05,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:05,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379070110] [2022-03-03 17:02:05,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379070110] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:05,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:05,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:05,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618362847] [2022-03-03 17:02:05,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:05,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:05,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:05,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:05,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:05,682 INFO L87 Difference]: Start difference. First operand 5204 states and 13665 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:05,858 INFO L93 Difference]: Finished difference Result 5758 states and 15052 transitions. [2022-03-03 17:02:05,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 17:02:05,858 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:05,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:05,866 INFO L225 Difference]: With dead ends: 5758 [2022-03-03 17:02:05,867 INFO L226 Difference]: Without dead ends: 5473 [2022-03-03 17:02:05,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:05,868 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 148 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1650 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 [2022-03-03 17:02:05,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 1650 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:05,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2022-03-03 17:02:05,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 5208. [2022-03-03 17:02:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5208 states, 5207 states have (on average 2.6256961782216246) internal successors, (13672), 5207 states have internal predecessors, (13672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 13672 transitions. [2022-03-03 17:02:05,946 INFO L78 Accepts]: Start accepts. Automaton has 5208 states and 13672 transitions. Word has length 91 [2022-03-03 17:02:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:05,946 INFO L470 AbstractCegarLoop]: Abstraction has 5208 states and 13672 transitions. [2022-03-03 17:02:05,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:05,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5208 states and 13672 transitions. [2022-03-03 17:02:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:05,952 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:05,957 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] [2022-03-03 17:02:05,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-03 17:02:05,957 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:05,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1592916611, now seen corresponding path program 9 times [2022-03-03 17:02:05,962 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:05,962 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501641607] [2022-03-03 17:02:05,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:05,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:06,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:06,064 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:06,064 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501641607] [2022-03-03 17:02:06,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501641607] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:06,064 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:06,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:06,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523165345] [2022-03-03 17:02:06,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:06,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:06,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:06,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:06,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:06,065 INFO L87 Difference]: Start difference. First operand 5208 states and 13672 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:06,208 INFO L93 Difference]: Finished difference Result 5669 states and 14822 transitions. [2022-03-03 17:02:06,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:02:06,208 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:06,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:06,215 INFO L225 Difference]: With dead ends: 5669 [2022-03-03 17:02:06,215 INFO L226 Difference]: Without dead ends: 5415 [2022-03-03 17:02:06,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:02:06,216 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 105 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:06,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 1486 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:06,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5415 states. [2022-03-03 17:02:06,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5415 to 5212. [2022-03-03 17:02:06,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5212 states, 5211 states have (on average 2.625023987718288) internal successors, (13679), 5211 states have internal predecessors, (13679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 13679 transitions. [2022-03-03 17:02:06,283 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 13679 transitions. Word has length 91 [2022-03-03 17:02:06,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:06,284 INFO L470 AbstractCegarLoop]: Abstraction has 5212 states and 13679 transitions. [2022-03-03 17:02:06,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 13679 transitions. [2022-03-03 17:02:06,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:06,289 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:06,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:06,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-03 17:02:06,289 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:06,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:06,289 INFO L85 PathProgramCache]: Analyzing trace with hash -575931861, now seen corresponding path program 10 times [2022-03-03 17:02:06,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:06,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457737788] [2022-03-03 17:02:06,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:06,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:06,396 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:06,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457737788] [2022-03-03 17:02:06,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457737788] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:06,396 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:06,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:06,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394427055] [2022-03-03 17:02:06,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:06,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:06,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:06,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:06,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:06,397 INFO L87 Difference]: Start difference. First operand 5212 states and 13679 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:06,516 INFO L93 Difference]: Finished difference Result 5623 states and 14700 transitions. [2022-03-03 17:02:06,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 17:02:06,517 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:06,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:06,524 INFO L225 Difference]: With dead ends: 5623 [2022-03-03 17:02:06,524 INFO L226 Difference]: Without dead ends: 5328 [2022-03-03 17:02:06,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-03-03 17:02:06,526 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 93 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:06,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 1105 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:06,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5328 states. [2022-03-03 17:02:06,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5328 to 5168. [2022-03-03 17:02:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6280239984517126) internal successors, (13579), 5167 states have internal predecessors, (13579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13579 transitions. [2022-03-03 17:02:06,594 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13579 transitions. Word has length 91 [2022-03-03 17:02:06,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:06,594 INFO L470 AbstractCegarLoop]: Abstraction has 5168 states and 13579 transitions. [2022-03-03 17:02:06,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13579 transitions. [2022-03-03 17:02:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:06,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:06,599 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] [2022-03-03 17:02:06,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-03 17:02:06,599 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:06,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:06,599 INFO L85 PathProgramCache]: Analyzing trace with hash -886476235, now seen corresponding path program 11 times [2022-03-03 17:02:06,599 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:06,599 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178102288] [2022-03-03 17:02:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:06,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:06,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:06,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:06,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178102288] [2022-03-03 17:02:06,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178102288] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:06,708 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:06,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:06,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384413287] [2022-03-03 17:02:06,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:06,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:06,709 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:06,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:06,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:06,709 INFO L87 Difference]: Start difference. First operand 5168 states and 13579 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:06,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:06,931 INFO L93 Difference]: Finished difference Result 5716 states and 14958 transitions. [2022-03-03 17:02:06,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-03 17:02:06,932 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:06,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:06,939 INFO L225 Difference]: With dead ends: 5716 [2022-03-03 17:02:06,940 INFO L226 Difference]: Without dead ends: 5437 [2022-03-03 17:02:06,940 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 [2022-03-03 17:02:06,940 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 143 mSDsluCounter, 1403 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1556 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 [2022-03-03 17:02:06,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 1556 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:06,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2022-03-03 17:02:06,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 5172. [2022-03-03 17:02:07,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5172 states, 5171 states have (on average 2.6273448075807386) internal successors, (13586), 5171 states have internal predecessors, (13586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5172 states to 5172 states and 13586 transitions. [2022-03-03 17:02:07,011 INFO L78 Accepts]: Start accepts. Automaton has 5172 states and 13586 transitions. Word has length 91 [2022-03-03 17:02:07,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:07,012 INFO L470 AbstractCegarLoop]: Abstraction has 5172 states and 13586 transitions. [2022-03-03 17:02:07,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5172 states and 13586 transitions. [2022-03-03 17:02:07,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:07,017 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:07,017 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] [2022-03-03 17:02:07,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-03 17:02:07,017 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:07,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:07,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1178182263, now seen corresponding path program 12 times [2022-03-03 17:02:07,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:07,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833178957] [2022-03-03 17:02:07,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:07,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:07,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:07,094 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:07,094 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833178957] [2022-03-03 17:02:07,094 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833178957] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:07,094 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:07,094 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:07,095 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288819229] [2022-03-03 17:02:07,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:07,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:07,095 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:07,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:07,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:07,095 INFO L87 Difference]: Start difference. First operand 5172 states and 13586 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:07,207 INFO L93 Difference]: Finished difference Result 5586 states and 14608 transitions. [2022-03-03 17:02:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-03 17:02:07,207 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:07,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:07,215 INFO L225 Difference]: With dead ends: 5586 [2022-03-03 17:02:07,215 INFO L226 Difference]: Without dead ends: 5332 [2022-03-03 17:02:07,215 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 [2022-03-03 17:02:07,215 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 115 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1044 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:07,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 1044 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:07,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2022-03-03 17:02:07,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 5176. [2022-03-03 17:02:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5176 states, 5175 states have (on average 2.6266666666666665) internal successors, (13593), 5175 states have internal predecessors, (13593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5176 states to 5176 states and 13593 transitions. [2022-03-03 17:02:07,282 INFO L78 Accepts]: Start accepts. Automaton has 5176 states and 13593 transitions. Word has length 91 [2022-03-03 17:02:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:07,282 INFO L470 AbstractCegarLoop]: Abstraction has 5176 states and 13593 transitions. [2022-03-03 17:02:07,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,283 INFO L276 IsEmpty]: Start isEmpty. Operand 5176 states and 13593 transitions. [2022-03-03 17:02:07,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:07,288 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:07,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:07,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-03 17:02:07,288 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:07,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:07,288 INFO L85 PathProgramCache]: Analyzing trace with hash 947936561, now seen corresponding path program 13 times [2022-03-03 17:02:07,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:07,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500723177] [2022-03-03 17:02:07,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:07,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:07,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:07,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500723177] [2022-03-03 17:02:07,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500723177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:07,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:07,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:07,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751267232] [2022-03-03 17:02:07,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:07,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:07,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:07,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:07,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:07,382 INFO L87 Difference]: Start difference. First operand 5176 states and 13593 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:07,548 INFO L93 Difference]: Finished difference Result 5564 states and 14552 transitions. [2022-03-03 17:02:07,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:02:07,549 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:07,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:07,556 INFO L225 Difference]: With dead ends: 5564 [2022-03-03 17:02:07,556 INFO L226 Difference]: Without dead ends: 5305 [2022-03-03 17:02:07,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-03-03 17:02:07,557 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 97 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1224 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:07,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 1224 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:07,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5305 states. [2022-03-03 17:02:07,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5305 to 5168. [2022-03-03 17:02:07,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5168 states, 5167 states have (on average 2.6272498548480745) internal successors, (13575), 5167 states have internal predecessors, (13575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 5168 states and 13575 transitions. [2022-03-03 17:02:07,629 INFO L78 Accepts]: Start accepts. Automaton has 5168 states and 13575 transitions. Word has length 91 [2022-03-03 17:02:07,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:07,629 INFO L470 AbstractCegarLoop]: Abstraction has 5168 states and 13575 transitions. [2022-03-03 17:02:07,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:07,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5168 states and 13575 transitions. [2022-03-03 17:02:07,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:07,634 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:07,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:07,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-03 17:02:07,635 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:07,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:07,635 INFO L85 PathProgramCache]: Analyzing trace with hash 19479749, now seen corresponding path program 14 times [2022-03-03 17:02:07,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:07,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25734341] [2022-03-03 17:02:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:07,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:07,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:07,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25734341] [2022-03-03 17:02:07,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25734341] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:07,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:07,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:07,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303282305] [2022-03-03 17:02:07,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:07,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:07,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:07,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:07,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:07,717 INFO L87 Difference]: Start difference. First operand 5168 states and 13575 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:08,004 INFO L93 Difference]: Finished difference Result 5780 states and 15039 transitions. [2022-03-03 17:02:08,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-03 17:02:08,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:08,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:08,015 INFO L225 Difference]: With dead ends: 5780 [2022-03-03 17:02:08,015 INFO L226 Difference]: Without dead ends: 5405 [2022-03-03 17:02:08,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2022-03-03 17:02:08,016 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 229 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 1434 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 [2022-03-03 17:02:08,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 1434 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5405 states. [2022-03-03 17:02:08,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5405 to 5072. [2022-03-03 17:02:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 5071 states have (on average 2.625714849142181) internal successors, (13315), 5071 states have internal predecessors, (13315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 13315 transitions. [2022-03-03 17:02:08,097 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 13315 transitions. Word has length 91 [2022-03-03 17:02:08,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:08,097 INFO L470 AbstractCegarLoop]: Abstraction has 5072 states and 13315 transitions. [2022-03-03 17:02:08,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,097 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 13315 transitions. [2022-03-03 17:02:08,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:08,102 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:08,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:08,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-03 17:02:08,103 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:08,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:08,103 INFO L85 PathProgramCache]: Analyzing trace with hash -129972745, now seen corresponding path program 15 times [2022-03-03 17:02:08,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:08,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432734738] [2022-03-03 17:02:08,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:08,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:08,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:08,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432734738] [2022-03-03 17:02:08,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432734738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:08,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:08,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:08,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426599965] [2022-03-03 17:02:08,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:08,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:08,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:08,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:08,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:08,180 INFO L87 Difference]: Start difference. First operand 5072 states and 13315 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:08,385 INFO L93 Difference]: Finished difference Result 5540 states and 14474 transitions. [2022-03-03 17:02:08,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 17:02:08,385 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:08,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:08,392 INFO L225 Difference]: With dead ends: 5540 [2022-03-03 17:02:08,392 INFO L226 Difference]: Without dead ends: 5261 [2022-03-03 17:02:08,393 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 [2022-03-03 17:02:08,393 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 135 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1297 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:08,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1297 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:08,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2022-03-03 17:02:08,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5076. [2022-03-03 17:02:08,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5076 states, 5075 states have (on average 2.625024630541872) internal successors, (13322), 5075 states have internal predecessors, (13322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5076 states to 5076 states and 13322 transitions. [2022-03-03 17:02:08,454 INFO L78 Accepts]: Start accepts. Automaton has 5076 states and 13322 transitions. Word has length 91 [2022-03-03 17:02:08,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:08,454 INFO L470 AbstractCegarLoop]: Abstraction has 5076 states and 13322 transitions. [2022-03-03 17:02:08,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5076 states and 13322 transitions. [2022-03-03 17:02:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:08,458 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:08,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:08,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-03 17:02:08,458 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:08,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:08,459 INFO L85 PathProgramCache]: Analyzing trace with hash -421678773, now seen corresponding path program 16 times [2022-03-03 17:02:08,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:08,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859368154] [2022-03-03 17:02:08,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:08,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:08,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:08,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:08,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859368154] [2022-03-03 17:02:08,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859368154] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:08,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:08,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:08,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316561582] [2022-03-03 17:02:08,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:08,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:08,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:08,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:08,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:08,573 INFO L87 Difference]: Start difference. First operand 5076 states and 13322 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:08,771 INFO L93 Difference]: Finished difference Result 5474 states and 14300 transitions. [2022-03-03 17:02:08,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:02:08,771 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:08,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:08,779 INFO L225 Difference]: With dead ends: 5474 [2022-03-03 17:02:08,779 INFO L226 Difference]: Without dead ends: 5220 [2022-03-03 17:02:08,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2022-03-03 17:02:08,779 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 109 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:08,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 1305 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:08,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5220 states. [2022-03-03 17:02:08,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5220 to 5080. [2022-03-03 17:02:08,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5080 states, 5079 states have (on average 2.624335499113999) internal successors, (13329), 5079 states have internal predecessors, (13329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5080 states to 5080 states and 13329 transitions. [2022-03-03 17:02:08,850 INFO L78 Accepts]: Start accepts. Automaton has 5080 states and 13329 transitions. Word has length 91 [2022-03-03 17:02:08,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:08,850 INFO L470 AbstractCegarLoop]: Abstraction has 5080 states and 13329 transitions. [2022-03-03 17:02:08,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 5080 states and 13329 transitions. [2022-03-03 17:02:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:08,855 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:08,855 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:08,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-03 17:02:08,855 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:08,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:08,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1704440051, now seen corresponding path program 17 times [2022-03-03 17:02:08,855 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:08,855 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281601968] [2022-03-03 17:02:08,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:08,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:08,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:08,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:08,937 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:08,937 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281601968] [2022-03-03 17:02:08,937 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281601968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:08,937 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:08,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:08,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234542903] [2022-03-03 17:02:08,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:08,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:08,938 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:08,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:08,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:08,938 INFO L87 Difference]: Start difference. First operand 5080 states and 13329 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:09,134 INFO L93 Difference]: Finished difference Result 5436 states and 14200 transitions. [2022-03-03 17:02:09,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:02:09,134 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:09,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:09,142 INFO L225 Difference]: With dead ends: 5436 [2022-03-03 17:02:09,142 INFO L226 Difference]: Without dead ends: 5177 [2022-03-03 17:02:09,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2022-03-03 17:02:09,143 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 83 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:09,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1400 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:09,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5177 states. [2022-03-03 17:02:09,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5177 to 5072. [2022-03-03 17:02:09,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5072 states, 5071 states have (on average 2.6249260500887397) internal successors, (13311), 5071 states have internal predecessors, (13311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5072 states to 5072 states and 13311 transitions. [2022-03-03 17:02:09,209 INFO L78 Accepts]: Start accepts. Automaton has 5072 states and 13311 transitions. Word has length 91 [2022-03-03 17:02:09,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:09,209 INFO L470 AbstractCegarLoop]: Abstraction has 5072 states and 13311 transitions. [2022-03-03 17:02:09,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,209 INFO L276 IsEmpty]: Start isEmpty. Operand 5072 states and 13311 transitions. [2022-03-03 17:02:09,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:09,214 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:09,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:09,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-03 17:02:09,214 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:09,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1427509847, now seen corresponding path program 18 times [2022-03-03 17:02:09,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:09,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892526720] [2022-03-03 17:02:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:09,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:09,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:09,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892526720] [2022-03-03 17:02:09,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892526720] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:09,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:09,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:09,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963142283] [2022-03-03 17:02:09,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:09,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:09,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:09,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:09,289 INFO L87 Difference]: Start difference. First operand 5072 states and 13311 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:09,468 INFO L93 Difference]: Finished difference Result 5431 states and 14188 transitions. [2022-03-03 17:02:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 17:02:09,468 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:09,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:09,474 INFO L225 Difference]: With dead ends: 5431 [2022-03-03 17:02:09,474 INFO L226 Difference]: Without dead ends: 5146 [2022-03-03 17:02:09,475 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 [2022-03-03 17:02:09,476 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 136 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:09,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 868 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5146 states. [2022-03-03 17:02:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5146 to 5041. [2022-03-03 17:02:09,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5041 states, 5040 states have (on average 2.6246031746031746) internal successors, (13228), 5040 states have internal predecessors, (13228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 13228 transitions. [2022-03-03 17:02:09,534 INFO L78 Accepts]: Start accepts. Automaton has 5041 states and 13228 transitions. Word has length 91 [2022-03-03 17:02:09,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:09,534 INFO L470 AbstractCegarLoop]: Abstraction has 5041 states and 13228 transitions. [2022-03-03 17:02:09,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5041 states and 13228 transitions. [2022-03-03 17:02:09,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:09,539 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:09,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:09,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-03 17:02:09,539 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:09,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:09,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2044906019, now seen corresponding path program 19 times [2022-03-03 17:02:09,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:09,540 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661536679] [2022-03-03 17:02:09,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:09,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:09,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:09,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:09,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661536679] [2022-03-03 17:02:09,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661536679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:09,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:09,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:09,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100544201] [2022-03-03 17:02:09,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:09,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:09,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:09,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:09,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:09,659 INFO L87 Difference]: Start difference. First operand 5041 states and 13228 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:09,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:09,918 INFO L93 Difference]: Finished difference Result 5369 states and 14026 transitions. [2022-03-03 17:02:09,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-03 17:02:09,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:09,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:09,926 INFO L225 Difference]: With dead ends: 5369 [2022-03-03 17:02:09,927 INFO L226 Difference]: Without dead ends: 5115 [2022-03-03 17:02:09,927 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 [2022-03-03 17:02:09,927 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 131 mSDsluCounter, 983 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:09,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1121 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:02:09,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5115 states. [2022-03-03 17:02:09,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5115 to 5045. [2022-03-03 17:02:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5045 states, 5044 states have (on average 2.62390959555908) internal successors, (13235), 5044 states have internal predecessors, (13235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 13235 transitions. [2022-03-03 17:02:10,010 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 13235 transitions. Word has length 91 [2022-03-03 17:02:10,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:10,010 INFO L470 AbstractCegarLoop]: Abstraction has 5045 states and 13235 transitions. [2022-03-03 17:02:10,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 13235 transitions. [2022-03-03 17:02:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-03 17:02:10,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:10,016 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] [2022-03-03 17:02:10,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-03 17:02:10,016 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:10,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:10,017 INFO L85 PathProgramCache]: Analyzing trace with hash -123942453, now seen corresponding path program 20 times [2022-03-03 17:02:10,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:10,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162170194] [2022-03-03 17:02:10,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:10,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:10,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:10,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162170194] [2022-03-03 17:02:10,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162170194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:10,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:10,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-03 17:02:10,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013546927] [2022-03-03 17:02:10,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:10,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:02:10,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:10,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:02:10,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:02:10,091 INFO L87 Difference]: Start difference. First operand 5045 states and 13235 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:10,232 INFO L93 Difference]: Finished difference Result 5296 states and 13836 transitions. [2022-03-03 17:02:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-03 17:02:10,233 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-03 17:02:10,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:10,240 INFO L225 Difference]: With dead ends: 5296 [2022-03-03 17:02:10,241 INFO L226 Difference]: Without dead ends: 4987 [2022-03-03 17:02:10,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-03-03 17:02:10,241 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 78 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 939 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:10,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 939 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:02:10,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4987 states. [2022-03-03 17:02:10,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4987 to 4987. [2022-03-03 17:02:10,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4987 states, 4986 states have (on average 2.628158844765343) internal successors, (13104), 4986 states have internal predecessors, (13104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4987 states to 4987 states and 13104 transitions. [2022-03-03 17:02:10,306 INFO L78 Accepts]: Start accepts. Automaton has 4987 states and 13104 transitions. Word has length 91 [2022-03-03 17:02:10,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:10,307 INFO L470 AbstractCegarLoop]: Abstraction has 4987 states and 13104 transitions. [2022-03-03 17:02:10,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:10,307 INFO L276 IsEmpty]: Start isEmpty. Operand 4987 states and 13104 transitions. [2022-03-03 17:02:10,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:10,312 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:10,312 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] [2022-03-03 17:02:10,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-03 17:02:10,312 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:10,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:10,313 INFO L85 PathProgramCache]: Analyzing trace with hash 838205561, now seen corresponding path program 1 times [2022-03-03 17:02:10,313 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:10,313 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993514618] [2022-03-03 17:02:10,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:10,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:10,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:10,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:10,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993514618] [2022-03-03 17:02:10,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993514618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:10,717 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:10,717 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:10,717 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854627577] [2022-03-03 17:02:10,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:10,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:10,717 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:10,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:10,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:10,718 INFO L87 Difference]: Start difference. First operand 4987 states and 13104 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:14,429 INFO L93 Difference]: Finished difference Result 9553 states and 25082 transitions. [2022-03-03 17:02:14,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-03 17:02:14,429 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:14,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:14,441 INFO L225 Difference]: With dead ends: 9553 [2022-03-03 17:02:14,441 INFO L226 Difference]: Without dead ends: 8605 [2022-03-03 17:02:14,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1311 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1748, Invalid=5392, Unknown=0, NotChecked=0, Total=7140 [2022-03-03 17:02:14,444 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 1445 mSDsluCounter, 8905 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 9165 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:14,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1445 Valid, 9165 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:02:14,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8605 states. [2022-03-03 17:02:14,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8605 to 5263. [2022-03-03 17:02:14,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 2.6322690992018245) internal successors, (13851), 5262 states have internal predecessors, (13851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:14,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 13851 transitions. [2022-03-03 17:02:14,519 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 13851 transitions. Word has length 135 [2022-03-03 17:02:14,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:14,520 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 13851 transitions. [2022-03-03 17:02:14,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:14,520 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 13851 transitions. [2022-03-03 17:02:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:14,526 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:14,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:14,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-03 17:02:14,526 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:14,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:14,526 INFO L85 PathProgramCache]: Analyzing trace with hash 767382389, now seen corresponding path program 2 times [2022-03-03 17:02:14,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:14,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597766297] [2022-03-03 17:02:14,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:14,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:15,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:15,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:15,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597766297] [2022-03-03 17:02:15,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597766297] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:15,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:15,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:15,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559716296] [2022-03-03 17:02:15,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:15,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:15,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:15,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:15,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:15,024 INFO L87 Difference]: Start difference. First operand 5263 states and 13851 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:18,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:18,381 INFO L93 Difference]: Finished difference Result 10395 states and 27170 transitions. [2022-03-03 17:02:18,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-03 17:02:18,382 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:18,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:18,393 INFO L225 Difference]: With dead ends: 10395 [2022-03-03 17:02:18,394 INFO L226 Difference]: Without dead ends: 9540 [2022-03-03 17:02:18,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1187 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1564, Invalid=5078, Unknown=0, NotChecked=0, Total=6642 [2022-03-03 17:02:18,395 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1512 mSDsluCounter, 7957 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 8230 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:18,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 8230 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:02:18,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9540 states. [2022-03-03 17:02:18,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9540 to 5267. [2022-03-03 17:02:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5267 states, 5266 states have (on average 2.63159893657425) internal successors, (13858), 5266 states have internal predecessors, (13858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:18,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5267 states to 5267 states and 13858 transitions. [2022-03-03 17:02:18,475 INFO L78 Accepts]: Start accepts. Automaton has 5267 states and 13858 transitions. Word has length 135 [2022-03-03 17:02:18,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:18,475 INFO L470 AbstractCegarLoop]: Abstraction has 5267 states and 13858 transitions. [2022-03-03 17:02:18,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:18,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5267 states and 13858 transitions. [2022-03-03 17:02:18,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:18,481 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:18,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:18,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-03 17:02:18,481 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:18,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:18,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1785587303, now seen corresponding path program 3 times [2022-03-03 17:02:18,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:18,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355527753] [2022-03-03 17:02:18,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:18,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:18,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:18,896 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:18,896 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355527753] [2022-03-03 17:02:18,896 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355527753] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:18,896 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:18,896 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:18,896 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080634838] [2022-03-03 17:02:18,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:18,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:18,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:18,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:18,897 INFO L87 Difference]: Start difference. First operand 5267 states and 13858 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:21,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:21,343 INFO L93 Difference]: Finished difference Result 9961 states and 26060 transitions. [2022-03-03 17:02:21,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 17:02:21,344 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:21,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:21,358 INFO L225 Difference]: With dead ends: 9961 [2022-03-03 17:02:21,358 INFO L226 Difference]: Without dead ends: 9137 [2022-03-03 17:02:21,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1064 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1391, Invalid=4771, Unknown=0, NotChecked=0, Total=6162 [2022-03-03 17:02:21,359 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1295 mSDsluCounter, 8454 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 8710 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:21,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1295 Valid, 8710 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:02:21,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9137 states. [2022-03-03 17:02:21,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9137 to 5319. [2022-03-03 17:02:21,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5319 states, 5318 states have (on average 2.622978563369688) internal successors, (13949), 5318 states have internal predecessors, (13949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:21,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5319 states to 5319 states and 13949 transitions. [2022-03-03 17:02:21,500 INFO L78 Accepts]: Start accepts. Automaton has 5319 states and 13949 transitions. Word has length 135 [2022-03-03 17:02:21,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:21,500 INFO L470 AbstractCegarLoop]: Abstraction has 5319 states and 13949 transitions. [2022-03-03 17:02:21,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:21,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5319 states and 13949 transitions. [2022-03-03 17:02:21,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:21,507 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:21,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:21,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-03 17:02:21,507 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:21,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:21,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1187760251, now seen corresponding path program 4 times [2022-03-03 17:02:21,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:21,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596941077] [2022-03-03 17:02:21,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:21,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:21,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:21,991 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:21,991 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596941077] [2022-03-03 17:02:21,991 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596941077] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:21,991 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:21,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:21,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341008486] [2022-03-03 17:02:21,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:21,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:21,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:21,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:21,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:21,992 INFO L87 Difference]: Start difference. First operand 5319 states and 13949 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:24,323 INFO L93 Difference]: Finished difference Result 9527 states and 24902 transitions. [2022-03-03 17:02:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:02:24,323 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:24,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:24,336 INFO L225 Difference]: With dead ends: 9527 [2022-03-03 17:02:24,336 INFO L226 Difference]: Without dead ends: 9106 [2022-03-03 17:02:24,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 952 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1232, Invalid=4468, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:02:24,337 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1201 mSDsluCounter, 7728 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 7989 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:24,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1201 Valid, 7989 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:02:24,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9106 states. [2022-03-03 17:02:24,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9106 to 5323. [2022-03-03 17:02:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6223224351747465) internal successors, (13956), 5322 states have internal predecessors, (13956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13956 transitions. [2022-03-03 17:02:24,417 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13956 transitions. Word has length 135 [2022-03-03 17:02:24,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:24,417 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13956 transitions. [2022-03-03 17:02:24,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:24,417 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13956 transitions. [2022-03-03 17:02:24,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:24,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:24,423 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:24,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-03 17:02:24,424 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:24,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:24,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2009986907, now seen corresponding path program 5 times [2022-03-03 17:02:24,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:24,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821674675] [2022-03-03 17:02:24,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:24,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:24,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:24,909 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:24,909 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821674675] [2022-03-03 17:02:24,909 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821674675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:24,909 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:24,909 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:24,909 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475780037] [2022-03-03 17:02:24,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:24,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:24,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:24,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:24,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:24,910 INFO L87 Difference]: Start difference. First operand 5323 states and 13956 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:27,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:27,658 INFO L93 Difference]: Finished difference Result 9301 states and 24384 transitions. [2022-03-03 17:02:27,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:02:27,659 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:27,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:27,670 INFO L225 Difference]: With dead ends: 9301 [2022-03-03 17:02:27,670 INFO L226 Difference]: Without dead ends: 8911 [2022-03-03 17:02:27,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 843 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1082, Invalid=4174, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:02:27,671 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 994 mSDsluCounter, 7586 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 7850 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:27,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 7850 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:02:27,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8911 states. [2022-03-03 17:02:27,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8911 to 5335. [2022-03-03 17:02:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6203599550056245) internal successors, (13977), 5334 states have internal predecessors, (13977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:27,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13977 transitions. [2022-03-03 17:02:27,750 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13977 transitions. Word has length 135 [2022-03-03 17:02:27,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:27,750 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13977 transitions. [2022-03-03 17:02:27,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:27,750 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13977 transitions. [2022-03-03 17:02:27,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:27,756 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:27,756 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:27,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-03 17:02:27,756 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:27,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:27,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1139884185, now seen corresponding path program 6 times [2022-03-03 17:02:27,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:27,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953606479] [2022-03-03 17:02:27,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:27,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:28,226 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:28,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953606479] [2022-03-03 17:02:28,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953606479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:28,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:28,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:28,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300709699] [2022-03-03 17:02:28,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:28,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:28,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:28,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:28,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:28,227 INFO L87 Difference]: Start difference. First operand 5335 states and 13977 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:30,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:30,666 INFO L93 Difference]: Finished difference Result 9150 states and 23988 transitions. [2022-03-03 17:02:30,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:02:30,666 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:30,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:30,680 INFO L225 Difference]: With dead ends: 9150 [2022-03-03 17:02:30,680 INFO L226 Difference]: Without dead ends: 8853 [2022-03-03 17:02:30,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=899, Invalid=3523, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:02:30,682 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 935 mSDsluCounter, 7435 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 7704 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:30,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [935 Valid, 7704 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:02:30,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8853 states. [2022-03-03 17:02:30,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8853 to 5339. [2022-03-03 17:02:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6197077557137503) internal successors, (13984), 5338 states have internal predecessors, (13984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:30,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13984 transitions. [2022-03-03 17:02:30,777 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13984 transitions. Word has length 135 [2022-03-03 17:02:30,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:30,777 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13984 transitions. [2022-03-03 17:02:30,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13984 transitions. [2022-03-03 17:02:30,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:30,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:30,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:30,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-03 17:02:30,784 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:30,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:30,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1276693595, now seen corresponding path program 7 times [2022-03-03 17:02:30,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:30,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056160534] [2022-03-03 17:02:30,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:30,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:31,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:31,196 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:31,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056160534] [2022-03-03 17:02:31,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056160534] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:31,196 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:31,196 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:31,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828788420] [2022-03-03 17:02:31,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:31,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:31,196 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:31,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:31,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:31,197 INFO L87 Difference]: Start difference. First operand 5339 states and 13984 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:32,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:32,957 INFO L93 Difference]: Finished difference Result 9034 states and 23690 transitions. [2022-03-03 17:02:32,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:32,957 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:32,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:32,968 INFO L225 Difference]: With dead ends: 9034 [2022-03-03 17:02:32,968 INFO L226 Difference]: Without dead ends: 8768 [2022-03-03 17:02:32,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=753, Invalid=2907, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:02:32,969 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 861 mSDsluCounter, 7286 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 7562 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:32,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [861 Valid, 7562 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:02:32,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8768 states. [2022-03-03 17:02:33,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8768 to 5343. [2022-03-03 17:02:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6190565331336577) internal successors, (13991), 5342 states have internal predecessors, (13991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:33,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13991 transitions. [2022-03-03 17:02:33,050 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13991 transitions. Word has length 135 [2022-03-03 17:02:33,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:33,050 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13991 transitions. [2022-03-03 17:02:33,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13991 transitions. [2022-03-03 17:02:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:33,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:33,057 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:33,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-03 17:02:33,057 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:33,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:33,057 INFO L85 PathProgramCache]: Analyzing trace with hash 849425229, now seen corresponding path program 8 times [2022-03-03 17:02:33,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:33,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794546473] [2022-03-03 17:02:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:33,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:33,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:33,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794546473] [2022-03-03 17:02:33,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794546473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:33,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:33,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:33,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798868400] [2022-03-03 17:02:33,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:33,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:33,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:33,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:33,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:33,460 INFO L87 Difference]: Start difference. First operand 5343 states and 13991 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:34,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:34,910 INFO L93 Difference]: Finished difference Result 8948 states and 23466 transitions. [2022-03-03 17:02:34,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:02:34,911 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:34,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:34,923 INFO L225 Difference]: With dead ends: 8948 [2022-03-03 17:02:34,923 INFO L226 Difference]: Without dead ends: 8593 [2022-03-03 17:02:34,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=733, Invalid=2573, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:02:34,924 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 825 mSDsluCounter, 7545 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 7822 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:34,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [825 Valid, 7822 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:02:34,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8593 states. [2022-03-03 17:02:34,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8593 to 5251. [2022-03-03 17:02:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 2.632) internal successors, (13818), 5250 states have internal predecessors, (13818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:35,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 13818 transitions. [2022-03-03 17:02:35,007 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 13818 transitions. Word has length 135 [2022-03-03 17:02:35,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:35,007 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 13818 transitions. [2022-03-03 17:02:35,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:35,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 13818 transitions. [2022-03-03 17:02:35,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:35,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:35,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:35,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-03 17:02:35,013 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:35,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:35,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1180571317, now seen corresponding path program 9 times [2022-03-03 17:02:35,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:35,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767078488] [2022-03-03 17:02:35,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:35,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:35,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:35,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767078488] [2022-03-03 17:02:35,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767078488] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:35,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:35,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:35,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335030475] [2022-03-03 17:02:35,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:35,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:35,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:35,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:35,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:35,486 INFO L87 Difference]: Start difference. First operand 5251 states and 13818 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:37,459 INFO L93 Difference]: Finished difference Result 9396 states and 24758 transitions. [2022-03-03 17:02:37,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:02:37,459 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:37,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:37,471 INFO L225 Difference]: With dead ends: 9396 [2022-03-03 17:02:37,471 INFO L226 Difference]: Without dead ends: 9105 [2022-03-03 17:02:37,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=939, Invalid=3093, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:02:37,478 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 890 mSDsluCounter, 7811 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 8081 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:37,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [890 Valid, 8081 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:02:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9105 states. [2022-03-03 17:02:37,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9105 to 5331. [2022-03-03 17:02:37,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.633020637898687) internal successors, (14034), 5330 states have internal predecessors, (14034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14034 transitions. [2022-03-03 17:02:37,604 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14034 transitions. Word has length 135 [2022-03-03 17:02:37,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:37,604 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14034 transitions. [2022-03-03 17:02:37,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:37,604 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14034 transitions. [2022-03-03 17:02:37,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:37,609 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:37,610 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:37,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-03 17:02:37,610 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:37,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:37,610 INFO L85 PathProgramCache]: Analyzing trace with hash 888865289, now seen corresponding path program 10 times [2022-03-03 17:02:37,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:37,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632794045] [2022-03-03 17:02:37,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:37,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:38,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:38,005 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:38,005 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632794045] [2022-03-03 17:02:38,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632794045] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:38,005 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:38,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:38,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128973528] [2022-03-03 17:02:38,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:38,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:38,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:38,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:38,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:38,006 INFO L87 Difference]: Start difference. First operand 5331 states and 14034 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:40,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:40,151 INFO L93 Difference]: Finished difference Result 9410 states and 24788 transitions. [2022-03-03 17:02:40,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:02:40,151 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:40,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:40,165 INFO L225 Difference]: With dead ends: 9410 [2022-03-03 17:02:40,165 INFO L226 Difference]: Without dead ends: 9144 [2022-03-03 17:02:40,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=749, Invalid=2791, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:02:40,166 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 861 mSDsluCounter, 7522 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 7788 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:40,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [861 Valid, 7788 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:02:40,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9144 states. [2022-03-03 17:02:40,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9144 to 5335. [2022-03-03 17:02:40,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.632358455193101) internal successors, (14041), 5334 states have internal predecessors, (14041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:40,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14041 transitions. [2022-03-03 17:02:40,253 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14041 transitions. Word has length 135 [2022-03-03 17:02:40,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:40,253 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14041 transitions. [2022-03-03 17:02:40,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14041 transitions. [2022-03-03 17:02:40,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:40,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:40,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:40,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-03 17:02:40,259 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:40,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1279983183, now seen corresponding path program 11 times [2022-03-03 17:02:40,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:40,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567118616] [2022-03-03 17:02:40,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:40,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:40,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:40,688 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:40,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567118616] [2022-03-03 17:02:40,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567118616] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:40,688 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:40,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:40,688 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633525542] [2022-03-03 17:02:40,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:40,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:40,689 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:40,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:40,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:40,689 INFO L87 Difference]: Start difference. First operand 5335 states and 14041 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:42,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:42,517 INFO L93 Difference]: Finished difference Result 9372 states and 24688 transitions. [2022-03-03 17:02:42,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:42,518 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:42,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:42,529 INFO L225 Difference]: With dead ends: 9372 [2022-03-03 17:02:42,529 INFO L226 Difference]: Without dead ends: 9101 [2022-03-03 17:02:42,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=823, Invalid=2837, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:02:42,533 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 865 mSDsluCounter, 7408 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 7687 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:42,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 7687 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:02:42,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9101 states. [2022-03-03 17:02:42,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9101 to 5327. [2022-03-03 17:02:42,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.632932782576042) internal successors, (14023), 5326 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:42,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14023 transitions. [2022-03-03 17:02:42,617 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14023 transitions. Word has length 135 [2022-03-03 17:02:42,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:42,618 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14023 transitions. [2022-03-03 17:02:42,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:42,618 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14023 transitions. [2022-03-03 17:02:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:42,624 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:42,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:42,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-03 17:02:42,625 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:42,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:42,625 INFO L85 PathProgramCache]: Analyzing trace with hash -907203017, now seen corresponding path program 12 times [2022-03-03 17:02:42,625 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:42,625 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029446849] [2022-03-03 17:02:42,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:42,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:42,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:42,968 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:42,968 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029446849] [2022-03-03 17:02:42,968 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029446849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:42,968 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:42,968 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:42,968 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643247626] [2022-03-03 17:02:42,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:42,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:42,968 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:42,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:42,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:42,969 INFO L87 Difference]: Start difference. First operand 5327 states and 14023 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:45,050 INFO L93 Difference]: Finished difference Result 9542 states and 25126 transitions. [2022-03-03 17:02:45,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:02:45,050 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:45,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:45,063 INFO L225 Difference]: With dead ends: 9542 [2022-03-03 17:02:45,064 INFO L226 Difference]: Without dead ends: 9245 [2022-03-03 17:02:45,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 561 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=916, Invalid=3374, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:02:45,065 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 943 mSDsluCounter, 7646 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 7901 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:45,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [943 Valid, 7901 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1467 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:02:45,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9245 states. [2022-03-03 17:02:45,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9245 to 5331. [2022-03-03 17:02:45,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6322701688555346) internal successors, (14030), 5330 states have internal predecessors, (14030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14030 transitions. [2022-03-03 17:02:45,156 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14030 transitions. Word has length 135 [2022-03-03 17:02:45,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:45,156 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14030 transitions. [2022-03-03 17:02:45,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:45,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14030 transitions. [2022-03-03 17:02:45,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:45,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:45,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:45,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-03 17:02:45,163 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:45,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:45,163 INFO L85 PathProgramCache]: Analyzing trace with hash 971186499, now seen corresponding path program 13 times [2022-03-03 17:02:45,163 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:45,163 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745001248] [2022-03-03 17:02:45,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:45,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:45,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:45,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:45,623 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:45,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745001248] [2022-03-03 17:02:45,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745001248] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:45,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:45,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:45,623 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433464124] [2022-03-03 17:02:45,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:45,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:45,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:45,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:45,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:45,624 INFO L87 Difference]: Start difference. First operand 5331 states and 14030 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:47,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:47,797 INFO L93 Difference]: Finished difference Result 9426 states and 24828 transitions. [2022-03-03 17:02:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:47,798 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:47,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:47,808 INFO L225 Difference]: With dead ends: 9426 [2022-03-03 17:02:47,808 INFO L226 Difference]: Without dead ends: 9160 [2022-03-03 17:02:47,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=781, Invalid=2879, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:02:47,809 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 876 mSDsluCounter, 7525 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 7792 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:47,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [876 Valid, 7792 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:02:47,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9160 states. [2022-03-03 17:02:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9160 to 5335. [2022-03-03 17:02:47,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6316085489313834) internal successors, (14037), 5334 states have internal predecessors, (14037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:47,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14037 transitions. [2022-03-03 17:02:47,876 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14037 transitions. Word has length 135 [2022-03-03 17:02:47,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:47,877 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14037 transitions. [2022-03-03 17:02:47,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:47,877 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14037 transitions. [2022-03-03 17:02:47,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:47,882 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:47,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:47,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-03 17:02:47,882 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:47,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:47,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1197661973, now seen corresponding path program 14 times [2022-03-03 17:02:47,882 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:47,882 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819987479] [2022-03-03 17:02:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:47,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:48,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:48,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:48,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819987479] [2022-03-03 17:02:48,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819987479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:48,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:48,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:48,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837177513] [2022-03-03 17:02:48,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:48,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:48,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:48,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:48,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:48,308 INFO L87 Difference]: Start difference. First operand 5335 states and 14037 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:50,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:50,040 INFO L93 Difference]: Finished difference Result 9372 states and 24684 transitions. [2022-03-03 17:02:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:02:50,040 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:50,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:50,052 INFO L225 Difference]: With dead ends: 9372 [2022-03-03 17:02:50,052 INFO L226 Difference]: Without dead ends: 9097 [2022-03-03 17:02:50,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=793, Invalid=2747, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:02:50,053 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 872 mSDsluCounter, 6993 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 7276 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:50,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 7276 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:02:50,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9097 states. [2022-03-03 17:02:50,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9097 to 5323. [2022-03-03 17:02:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6328447951897784) internal successors, (14012), 5322 states have internal predecessors, (14012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:50,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 14012 transitions. [2022-03-03 17:02:50,131 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 14012 transitions. Word has length 135 [2022-03-03 17:02:50,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:50,131 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 14012 transitions. [2022-03-03 17:02:50,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:50,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 14012 transitions. [2022-03-03 17:02:50,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:50,136 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:50,136 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:50,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-03 17:02:50,136 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:50,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:50,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1816968025, now seen corresponding path program 15 times [2022-03-03 17:02:50,137 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:50,137 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017129031] [2022-03-03 17:02:50,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:50,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:50,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:50,581 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:50,581 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017129031] [2022-03-03 17:02:50,581 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017129031] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:50,581 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:50,581 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:50,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568700562] [2022-03-03 17:02:50,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:50,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:50,582 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:50,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:50,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:50,582 INFO L87 Difference]: Start difference. First operand 5323 states and 14012 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:52,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:52,813 INFO L93 Difference]: Finished difference Result 9709 states and 25554 transitions. [2022-03-03 17:02:52,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:02:52,813 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:52,823 INFO L225 Difference]: With dead ends: 9709 [2022-03-03 17:02:52,823 INFO L226 Difference]: Without dead ends: 9319 [2022-03-03 17:02:52,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1106, Invalid=4006, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:02:52,824 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 1010 mSDsluCounter, 7789 mSDsCounter, 0 mSdLazyCounter, 1506 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 8036 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:52,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 8036 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1506 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:02:52,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9319 states. [2022-03-03 17:02:52,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9319 to 5335. [2022-03-03 17:02:52,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6308586426696663) internal successors, (14033), 5334 states have internal predecessors, (14033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:52,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14033 transitions. [2022-03-03 17:02:52,888 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14033 transitions. Word has length 135 [2022-03-03 17:02:52,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:52,888 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14033 transitions. [2022-03-03 17:02:52,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:52,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14033 transitions. [2022-03-03 17:02:52,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:52,893 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:52,893 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:52,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-03 17:02:52,894 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:52,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:52,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2084534235, now seen corresponding path program 16 times [2022-03-03 17:02:52,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:52,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349422100] [2022-03-03 17:02:52,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:52,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:52,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:53,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:53,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:53,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349422100] [2022-03-03 17:02:53,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349422100] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:53,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:53,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:53,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210423579] [2022-03-03 17:02:53,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:53,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:53,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:53,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:53,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:53,361 INFO L87 Difference]: Start difference. First operand 5335 states and 14033 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:55,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:55,628 INFO L93 Difference]: Finished difference Result 9558 states and 25158 transitions. [2022-03-03 17:02:55,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:02:55,629 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:55,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:55,641 INFO L225 Difference]: With dead ends: 9558 [2022-03-03 17:02:55,641 INFO L226 Difference]: Without dead ends: 9261 [2022-03-03 17:02:55,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=940, Invalid=3482, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:02:55,644 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 953 mSDsluCounter, 7256 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 7522 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:55,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 7522 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:02:55,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9261 states. [2022-03-03 17:02:55,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9261 to 5339. [2022-03-03 17:02:55,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.630198576245785) internal successors, (14040), 5338 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:55,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14040 transitions. [2022-03-03 17:02:55,730 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14040 transitions. Word has length 135 [2022-03-03 17:02:55,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:55,731 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 14040 transitions. [2022-03-03 17:02:55,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:55,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14040 transitions. [2022-03-03 17:02:55,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:55,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:55,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:55,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-03 17:02:55,736 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:55,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:55,737 INFO L85 PathProgramCache]: Analyzing trace with hash -332043545, now seen corresponding path program 17 times [2022-03-03 17:02:55,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:55,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402303314] [2022-03-03 17:02:55,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:55,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:55,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:56,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:56,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:56,259 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402303314] [2022-03-03 17:02:56,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402303314] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:56,259 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:56,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:56,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45612951] [2022-03-03 17:02:56,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:56,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:56,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:56,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:56,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:56,259 INFO L87 Difference]: Start difference. First operand 5339 states and 14040 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:58,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:02:58,343 INFO L93 Difference]: Finished difference Result 9442 states and 24860 transitions. [2022-03-03 17:02:58,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:02:58,344 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:02:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:02:58,356 INFO L225 Difference]: With dead ends: 9442 [2022-03-03 17:02:58,357 INFO L226 Difference]: Without dead ends: 9176 [2022-03-03 17:02:58,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=774, Invalid=2886, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:02:58,364 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 886 mSDsluCounter, 7115 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 7388 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:02:58,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [886 Valid, 7388 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:02:58,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9176 states. [2022-03-03 17:02:58,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9176 to 5343. [2022-03-03 17:02:58,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.629539498315238) internal successors, (14047), 5342 states have internal predecessors, (14047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:58,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 14047 transitions. [2022-03-03 17:02:58,460 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 14047 transitions. Word has length 135 [2022-03-03 17:02:58,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:02:58,460 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 14047 transitions. [2022-03-03 17:02:58,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:02:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 14047 transitions. [2022-03-03 17:02:58,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:02:58,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:02:58,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:02:58,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-03 17:02:58,466 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:02:58,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:02:58,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1794075279, now seen corresponding path program 18 times [2022-03-03 17:02:58,466 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:02:58,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464914311] [2022-03-03 17:02:58,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:02:58,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:02:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:02:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:02:59,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:02:59,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464914311] [2022-03-03 17:02:59,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464914311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:02:59,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:02:59,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:02:59,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189669925] [2022-03-03 17:02:59,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:02:59,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:02:59,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:02:59,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:02:59,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:02:59,032 INFO L87 Difference]: Start difference. First operand 5343 states and 14047 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:01,205 INFO L93 Difference]: Finished difference Result 9380 states and 24694 transitions. [2022-03-03 17:03:01,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:03:01,205 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:01,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:01,222 INFO L225 Difference]: With dead ends: 9380 [2022-03-03 17:03:01,223 INFO L226 Difference]: Without dead ends: 9085 [2022-03-03 17:03:01,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=765, Invalid=2657, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:03:01,224 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 865 mSDsluCounter, 7369 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 7643 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:01,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 7643 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:01,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9085 states. [2022-03-03 17:03:01,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9085 to 5311. [2022-03-03 17:03:01,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.632580037664783) internal successors, (13979), 5310 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13979 transitions. [2022-03-03 17:03:01,317 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13979 transitions. Word has length 135 [2022-03-03 17:03:01,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:01,317 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13979 transitions. [2022-03-03 17:03:01,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:01,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13979 transitions. [2022-03-03 17:03:01,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:01,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:01,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:01,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-03 17:03:01,331 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:01,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:01,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1017287595, now seen corresponding path program 19 times [2022-03-03 17:03:01,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:01,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785248764] [2022-03-03 17:03:01,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:01,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:01,818 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:01,818 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785248764] [2022-03-03 17:03:01,818 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785248764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:01,818 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:01,818 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:01,818 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454029940] [2022-03-03 17:03:01,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:01,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:01,818 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:01,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:01,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:01,819 INFO L87 Difference]: Start difference. First operand 5311 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:04,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:04,905 INFO L93 Difference]: Finished difference Result 9951 states and 26104 transitions. [2022-03-03 17:03:04,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:03:04,905 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:04,918 INFO L225 Difference]: With dead ends: 9951 [2022-03-03 17:03:04,918 INFO L226 Difference]: Without dead ends: 9530 [2022-03-03 17:03:04,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1280, Invalid=4420, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:03:04,919 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1248 mSDsluCounter, 7515 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 7767 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:04,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1248 Valid, 7767 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:03:04,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9530 states. [2022-03-03 17:03:04,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9530 to 5315. [2022-03-03 17:03:04,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6319156943921715) internal successors, (13986), 5314 states have internal predecessors, (13986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:05,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13986 transitions. [2022-03-03 17:03:05,002 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13986 transitions. Word has length 135 [2022-03-03 17:03:05,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:05,002 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13986 transitions. [2022-03-03 17:03:05,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13986 transitions. [2022-03-03 17:03:05,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:05,008 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:05,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:05,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-03 17:03:05,008 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:05,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:05,008 INFO L85 PathProgramCache]: Analyzing trace with hash 79932543, now seen corresponding path program 20 times [2022-03-03 17:03:05,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:05,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558831131] [2022-03-03 17:03:05,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:05,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:05,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:05,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558831131] [2022-03-03 17:03:05,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558831131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:05,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:05,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:05,410 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372670651] [2022-03-03 17:03:05,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:05,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:05,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:05,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:05,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:05,411 INFO L87 Difference]: Start difference. First operand 5315 states and 13986 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:08,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:08,269 INFO L93 Difference]: Finished difference Result 9725 states and 25586 transitions. [2022-03-03 17:03:08,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:03:08,270 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:08,280 INFO L225 Difference]: With dead ends: 9725 [2022-03-03 17:03:08,280 INFO L226 Difference]: Without dead ends: 9335 [2022-03-03 17:03:08,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1124, Invalid=4132, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:03:08,281 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1021 mSDsluCounter, 7409 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 7668 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:08,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1021 Valid, 7668 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:03:08,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9335 states. [2022-03-03 17:03:08,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9335 to 5327. [2022-03-03 17:03:08,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6299286518963574) internal successors, (14007), 5326 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:08,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14007 transitions. [2022-03-03 17:03:08,359 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14007 transitions. Word has length 135 [2022-03-03 17:03:08,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:08,360 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14007 transitions. [2022-03-03 17:03:08,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:08,360 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14007 transitions. [2022-03-03 17:03:08,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:08,365 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:08,365 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:08,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-03 17:03:08,366 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:08,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:08,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1065163661, now seen corresponding path program 21 times [2022-03-03 17:03:08,366 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:08,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187966968] [2022-03-03 17:03:08,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:08,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:08,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:08,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:08,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187966968] [2022-03-03 17:03:08,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187966968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:08,766 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:08,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:08,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941122341] [2022-03-03 17:03:08,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:08,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:08,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:08,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:08,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:08,767 INFO L87 Difference]: Start difference. First operand 5327 states and 14007 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:10,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:10,981 INFO L93 Difference]: Finished difference Result 9574 states and 25190 transitions. [2022-03-03 17:03:10,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:03:10,981 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:10,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:10,993 INFO L225 Difference]: With dead ends: 9574 [2022-03-03 17:03:10,994 INFO L226 Difference]: Without dead ends: 9277 [2022-03-03 17:03:10,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=930, Invalid=3492, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:03:10,994 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 942 mSDsluCounter, 7671 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 7926 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:10,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 7926 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:11,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2022-03-03 17:03:11,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 5331. [2022-03-03 17:03:11,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.629268292682927) internal successors, (14014), 5330 states have internal predecessors, (14014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:11,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14014 transitions. [2022-03-03 17:03:11,077 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14014 transitions. Word has length 135 [2022-03-03 17:03:11,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:11,077 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14014 transitions. [2022-03-03 17:03:11,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:11,077 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14014 transitions. [2022-03-03 17:03:11,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:11,082 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:11,083 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:11,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-03 17:03:11,083 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:11,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:11,083 INFO L85 PathProgramCache]: Analyzing trace with hash 813225855, now seen corresponding path program 22 times [2022-03-03 17:03:11,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:11,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128460165] [2022-03-03 17:03:11,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:11,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:11,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:11,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128460165] [2022-03-03 17:03:11,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128460165] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:11,511 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:11,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:11,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843325500] [2022-03-03 17:03:11,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:11,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:11,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:11,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:11,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:11,512 INFO L87 Difference]: Start difference. First operand 5331 states and 14014 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:13,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:13,703 INFO L93 Difference]: Finished difference Result 9458 states and 24892 transitions. [2022-03-03 17:03:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:13,703 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:13,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:13,713 INFO L225 Difference]: With dead ends: 9458 [2022-03-03 17:03:13,713 INFO L226 Difference]: Without dead ends: 9192 [2022-03-03 17:03:13,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=769, Invalid=2891, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:03:13,714 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 891 mSDsluCounter, 7116 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 7387 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:13,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [891 Valid, 7387 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:03:13,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9192 states. [2022-03-03 17:03:13,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9192 to 5335. [2022-03-03 17:03:13,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6286089238845145) internal successors, (14021), 5334 states have internal predecessors, (14021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:13,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14021 transitions. [2022-03-03 17:03:13,783 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14021 transitions. Word has length 135 [2022-03-03 17:03:13,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:13,783 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14021 transitions. [2022-03-03 17:03:13,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14021 transitions. [2022-03-03 17:03:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:13,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:13,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:13,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-03 17:03:13,789 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:13,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:13,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1355622617, now seen corresponding path program 23 times [2022-03-03 17:03:13,789 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:13,789 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333212040] [2022-03-03 17:03:13,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:13,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:14,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:14,204 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333212040] [2022-03-03 17:03:14,204 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333212040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:14,204 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:14,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:14,204 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124595144] [2022-03-03 17:03:14,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:14,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:14,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:14,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:14,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:14,205 INFO L87 Difference]: Start difference. First operand 5335 states and 14021 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:16,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:16,171 INFO L93 Difference]: Finished difference Result 9372 states and 24668 transitions. [2022-03-03 17:03:16,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:03:16,172 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:16,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:16,186 INFO L225 Difference]: With dead ends: 9372 [2022-03-03 17:03:16,186 INFO L226 Difference]: Without dead ends: 9081 [2022-03-03 17:03:16,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=739, Invalid=2567, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:03:16,187 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 866 mSDsluCounter, 7364 mSDsCounter, 0 mSdLazyCounter, 1351 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 7636 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:16,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [866 Valid, 7636 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:16,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9081 states. [2022-03-03 17:03:16,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9081 to 5307. [2022-03-03 17:03:16,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.632491519035055) internal successors, (13968), 5306 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:16,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13968 transitions. [2022-03-03 17:03:16,281 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13968 transitions. Word has length 135 [2022-03-03 17:03:16,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:16,281 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13968 transitions. [2022-03-03 17:03:16,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:16,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13968 transitions. [2022-03-03 17:03:16,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:16,287 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:16,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:16,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-03 17:03:16,288 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:16,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:16,288 INFO L85 PathProgramCache]: Analyzing trace with hash -16532215, now seen corresponding path program 24 times [2022-03-03 17:03:16,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:16,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784837947] [2022-03-03 17:03:16,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:16,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:16,654 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:16,654 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784837947] [2022-03-03 17:03:16,654 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784837947] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:16,654 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:16,655 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:16,655 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493744287] [2022-03-03 17:03:16,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:16,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:16,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:16,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:16,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:16,655 INFO L87 Difference]: Start difference. First operand 5307 states and 13968 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:18,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:18,952 INFO L93 Difference]: Finished difference Result 10433 states and 27342 transitions. [2022-03-03 17:03:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 17:03:18,952 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:18,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:18,963 INFO L225 Difference]: With dead ends: 10433 [2022-03-03 17:03:18,963 INFO L226 Difference]: Without dead ends: 9609 [2022-03-03 17:03:18,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1430, Invalid=4732, Unknown=0, NotChecked=0, Total=6162 [2022-03-03 17:03:18,964 INFO L933 BasicCegarLoop]: 451 mSDtfsCounter, 1379 mSDsluCounter, 7889 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 8155 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:18,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1379 Valid, 8155 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:03:18,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2022-03-03 17:03:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 5359. [2022-03-03 17:03:19,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 2.623926838372527) internal successors, (14059), 5358 states have internal predecessors, (14059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 14059 transitions. [2022-03-03 17:03:19,039 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 14059 transitions. Word has length 135 [2022-03-03 17:03:19,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:19,040 INFO L470 AbstractCegarLoop]: Abstraction has 5359 states and 14059 transitions. [2022-03-03 17:03:19,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 14059 transitions. [2022-03-03 17:03:19,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:19,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:19,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:19,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-03 17:03:19,046 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:19,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:19,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1765517441, now seen corresponding path program 25 times [2022-03-03 17:03:19,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:19,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308798104] [2022-03-03 17:03:19,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:19,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:19,521 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:19,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308798104] [2022-03-03 17:03:19,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308798104] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:19,521 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:19,521 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:19,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042189539] [2022-03-03 17:03:19,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:19,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:19,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:19,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:19,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:19,522 INFO L87 Difference]: Start difference. First operand 5359 states and 14059 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:21,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:21,666 INFO L93 Difference]: Finished difference Result 9999 states and 26184 transitions. [2022-03-03 17:03:21,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:03:21,667 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:21,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:21,680 INFO L225 Difference]: With dead ends: 9999 [2022-03-03 17:03:21,681 INFO L226 Difference]: Without dead ends: 9578 [2022-03-03 17:03:21,682 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 936 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1264, Invalid=4436, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:03:21,682 INFO L933 BasicCegarLoop]: 436 mSDtfsCounter, 1235 mSDsluCounter, 7657 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 7920 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:21,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 7920 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:03:21,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9578 states. [2022-03-03 17:03:21,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9578 to 5363. [2022-03-03 17:03:21,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 5362 states have (on average 2.6232748974263336) internal successors, (14066), 5362 states have internal predecessors, (14066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 14066 transitions. [2022-03-03 17:03:21,762 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 14066 transitions. Word has length 135 [2022-03-03 17:03:21,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:21,762 INFO L470 AbstractCegarLoop]: Abstraction has 5363 states and 14066 transitions. [2022-03-03 17:03:21,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:21,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 14066 transitions. [2022-03-03 17:03:21,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:21,767 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:21,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:21,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-03 17:03:21,767 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:21,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:21,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1432229717, now seen corresponding path program 26 times [2022-03-03 17:03:21,767 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:21,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086832498] [2022-03-03 17:03:21,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:21,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:22,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:22,207 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:22,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086832498] [2022-03-03 17:03:22,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086832498] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:22,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:22,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:22,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482943917] [2022-03-03 17:03:22,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:22,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:22,208 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:22,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:22,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:22,208 INFO L87 Difference]: Start difference. First operand 5363 states and 14066 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:24,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:24,989 INFO L93 Difference]: Finished difference Result 9773 states and 25666 transitions. [2022-03-03 17:03:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:03:24,990 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:24,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:25,004 INFO L225 Difference]: With dead ends: 9773 [2022-03-03 17:03:25,004 INFO L226 Difference]: Without dead ends: 9383 [2022-03-03 17:03:25,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1110, Invalid=4146, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:03:25,005 INFO L933 BasicCegarLoop]: 426 mSDtfsCounter, 1030 mSDsluCounter, 7519 mSDsCounter, 0 mSdLazyCounter, 1425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 7785 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:25,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 7785 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1425 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:03:25,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9383 states. [2022-03-03 17:03:25,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9383 to 5375. [2022-03-03 17:03:25,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5375 states, 5374 states have (on average 2.6213248976553776) internal successors, (14087), 5374 states have internal predecessors, (14087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 14087 transitions. [2022-03-03 17:03:25,103 INFO L78 Accepts]: Start accepts. Automaton has 5375 states and 14087 transitions. Word has length 135 [2022-03-03 17:03:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:25,103 INFO L470 AbstractCegarLoop]: Abstraction has 5375 states and 14087 transitions. [2022-03-03 17:03:25,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5375 states and 14087 transitions. [2022-03-03 17:03:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:25,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:25,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:25,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-03 17:03:25,109 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:25,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:25,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1717641375, now seen corresponding path program 27 times [2022-03-03 17:03:25,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:25,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227751445] [2022-03-03 17:03:25,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:25,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:25,516 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:25,516 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227751445] [2022-03-03 17:03:25,516 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227751445] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:25,516 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:25,516 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:25,516 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234051214] [2022-03-03 17:03:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:25,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:25,517 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:25,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:25,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:25,517 INFO L87 Difference]: Start difference. First operand 5375 states and 14087 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:27,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:27,783 INFO L93 Difference]: Finished difference Result 9622 states and 25270 transitions. [2022-03-03 17:03:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:03:27,783 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:27,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:27,797 INFO L225 Difference]: With dead ends: 9622 [2022-03-03 17:03:27,797 INFO L226 Difference]: Without dead ends: 9325 [2022-03-03 17:03:27,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=920, Invalid=3502, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:03:27,798 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 958 mSDsluCounter, 7368 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 7639 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:27,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [958 Valid, 7639 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:27,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9325 states. [2022-03-03 17:03:27,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9325 to 5379. [2022-03-03 17:03:27,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 5378 states have (on average 2.620676831535887) internal successors, (14094), 5378 states have internal predecessors, (14094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 14094 transitions. [2022-03-03 17:03:27,936 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 14094 transitions. Word has length 135 [2022-03-03 17:03:27,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:27,936 INFO L470 AbstractCegarLoop]: Abstraction has 5379 states and 14094 transitions. [2022-03-03 17:03:27,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:27,936 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 14094 transitions. [2022-03-03 17:03:27,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:27,942 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:27,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:27,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-03 17:03:27,942 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:27,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:27,942 INFO L85 PathProgramCache]: Analyzing trace with hash -698936405, now seen corresponding path program 28 times [2022-03-03 17:03:27,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:27,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101653405] [2022-03-03 17:03:27,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:27,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:28,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:28,244 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:28,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101653405] [2022-03-03 17:03:28,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101653405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:28,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:28,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:28,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914648349] [2022-03-03 17:03:28,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:28,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:28,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:28,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:28,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:28,245 INFO L87 Difference]: Start difference. First operand 5379 states and 14094 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:29,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:29,904 INFO L93 Difference]: Finished difference Result 9506 states and 24972 transitions. [2022-03-03 17:03:29,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:29,904 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:29,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:29,917 INFO L225 Difference]: With dead ends: 9506 [2022-03-03 17:03:29,918 INFO L226 Difference]: Without dead ends: 9240 [2022-03-03 17:03:29,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=763, Invalid=2897, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:03:29,918 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 917 mSDsluCounter, 7220 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:29,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 7498 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:03:29,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9240 states. [2022-03-03 17:03:29,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9240 to 5383. [2022-03-03 17:03:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5383 states, 5382 states have (on average 2.620029728725381) internal successors, (14101), 5382 states have internal predecessors, (14101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:30,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5383 states to 5383 states and 14101 transitions. [2022-03-03 17:03:30,010 INFO L78 Accepts]: Start accepts. Automaton has 5383 states and 14101 transitions. Word has length 135 [2022-03-03 17:03:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:30,010 INFO L470 AbstractCegarLoop]: Abstraction has 5383 states and 14101 transitions. [2022-03-03 17:03:30,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 5383 states and 14101 transitions. [2022-03-03 17:03:30,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:30,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:30,016 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:30,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-03 17:03:30,016 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:30,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:30,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1427182419, now seen corresponding path program 29 times [2022-03-03 17:03:30,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:30,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571229807] [2022-03-03 17:03:30,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:30,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:30,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:30,424 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:30,425 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571229807] [2022-03-03 17:03:30,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571229807] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:30,425 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:30,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:30,425 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122978565] [2022-03-03 17:03:30,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:30,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:30,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:30,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:30,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:30,425 INFO L87 Difference]: Start difference. First operand 5383 states and 14101 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:32,398 INFO L93 Difference]: Finished difference Result 9420 states and 24748 transitions. [2022-03-03 17:03:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:03:32,398 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:32,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:32,411 INFO L225 Difference]: With dead ends: 9420 [2022-03-03 17:03:32,412 INFO L226 Difference]: Without dead ends: 9029 [2022-03-03 17:03:32,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=739, Invalid=2567, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:03:32,412 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 873 mSDsluCounter, 6715 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 7006 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:32,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [873 Valid, 7006 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:32,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9029 states. [2022-03-03 17:03:32,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9029 to 5255. [2022-03-03 17:03:32,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 2.6313285116102016) internal successors, (13825), 5254 states have internal predecessors, (13825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 13825 transitions. [2022-03-03 17:03:32,490 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 13825 transitions. Word has length 135 [2022-03-03 17:03:32,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:32,490 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 13825 transitions. [2022-03-03 17:03:32,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 13825 transitions. [2022-03-03 17:03:32,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:32,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:32,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:32,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-03 17:03:32,533 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:32,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:32,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1323964007, now seen corresponding path program 30 times [2022-03-03 17:03:32,533 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:32,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459632672] [2022-03-03 17:03:32,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:32,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:32,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:32,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:32,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459632672] [2022-03-03 17:03:32,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459632672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:32,941 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:32,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:32,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324226177] [2022-03-03 17:03:32,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:32,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:32,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:32,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:32,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:32,942 INFO L87 Difference]: Start difference. First operand 5255 states and 13825 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:36,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:36,109 INFO L93 Difference]: Finished difference Result 10387 states and 27144 transitions. [2022-03-03 17:03:36,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-03 17:03:36,110 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:36,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:36,123 INFO L225 Difference]: With dead ends: 10387 [2022-03-03 17:03:36,124 INFO L226 Difference]: Without dead ends: 9532 [2022-03-03 17:03:36,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1584, Invalid=5058, Unknown=0, NotChecked=0, Total=6642 [2022-03-03 17:03:36,125 INFO L933 BasicCegarLoop]: 452 mSDtfsCounter, 1544 mSDsluCounter, 7885 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 8157 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:36,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 8157 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:03:36,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9532 states. [2022-03-03 17:03:36,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9532 to 5259. [2022-03-03 17:03:36,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 2.6306580448839862) internal successors, (13832), 5258 states have internal predecessors, (13832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:36,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 13832 transitions. [2022-03-03 17:03:36,211 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 13832 transitions. Word has length 135 [2022-03-03 17:03:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:36,212 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 13832 transitions. [2022-03-03 17:03:36,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:36,212 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 13832 transitions. [2022-03-03 17:03:36,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:36,216 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:36,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:36,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-03 17:03:36,217 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:36,217 INFO L85 PathProgramCache]: Analyzing trace with hash 418033597, now seen corresponding path program 31 times [2022-03-03 17:03:36,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:36,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176613565] [2022-03-03 17:03:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:36,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:36,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:36,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:36,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176613565] [2022-03-03 17:03:36,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176613565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:36,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:36,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:36,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744052375] [2022-03-03 17:03:36,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:36,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:36,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:36,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:36,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:36,634 INFO L87 Difference]: Start difference. First operand 5259 states and 13832 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:39,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:39,566 INFO L93 Difference]: Finished difference Result 9953 states and 26034 transitions. [2022-03-03 17:03:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 17:03:39,567 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:39,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:39,578 INFO L225 Difference]: With dead ends: 9953 [2022-03-03 17:03:39,578 INFO L226 Difference]: Without dead ends: 9129 [2022-03-03 17:03:39,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1410, Invalid=4752, Unknown=0, NotChecked=0, Total=6162 [2022-03-03 17:03:39,579 INFO L933 BasicCegarLoop]: 453 mSDtfsCounter, 1320 mSDsluCounter, 7905 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 8173 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:39,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1320 Valid, 8173 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:03:39,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9129 states. [2022-03-03 17:03:39,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9129 to 5311. [2022-03-03 17:03:39,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.6220338983050846) internal successors, (13923), 5310 states have internal predecessors, (13923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:39,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13923 transitions. [2022-03-03 17:03:39,662 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13923 transitions. Word has length 135 [2022-03-03 17:03:39,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:39,662 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13923 transitions. [2022-03-03 17:03:39,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13923 transitions. [2022-03-03 17:03:39,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:39,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:39,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:39,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-03 17:03:39,668 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:39,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:39,668 INFO L85 PathProgramCache]: Analyzing trace with hash -903586145, now seen corresponding path program 32 times [2022-03-03 17:03:39,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:39,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439233225] [2022-03-03 17:03:39,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:39,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:40,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:40,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:40,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439233225] [2022-03-03 17:03:40,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439233225] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:40,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:40,074 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:40,074 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872490088] [2022-03-03 17:03:40,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:40,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:40,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:40,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:40,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:40,074 INFO L87 Difference]: Start difference. First operand 5311 states and 13923 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:42,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:42,592 INFO L93 Difference]: Finished difference Result 9519 states and 24876 transitions. [2022-03-03 17:03:42,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:03:42,592 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:42,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:42,607 INFO L225 Difference]: With dead ends: 9519 [2022-03-03 17:03:42,607 INFO L226 Difference]: Without dead ends: 9098 [2022-03-03 17:03:42,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1248, Invalid=4452, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:03:42,608 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 1188 mSDsluCounter, 8064 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 8314 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:42,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1188 Valid, 8314 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:42,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9098 states. [2022-03-03 17:03:42,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9098 to 5315. [2022-03-03 17:03:42,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6213774934136245) internal successors, (13930), 5314 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:42,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13930 transitions. [2022-03-03 17:03:42,772 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13930 transitions. Word has length 135 [2022-03-03 17:03:42,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:42,772 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13930 transitions. [2022-03-03 17:03:42,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:42,772 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13930 transitions. [2022-03-03 17:03:42,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:42,778 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:42,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:42,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-03 17:03:42,778 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:42,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:42,778 INFO L85 PathProgramCache]: Analyzing trace with hash 193633993, now seen corresponding path program 33 times [2022-03-03 17:03:42,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:42,779 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121296641] [2022-03-03 17:03:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:42,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:43,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:43,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121296641] [2022-03-03 17:03:43,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121296641] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:43,180 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:43,180 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:43,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525604003] [2022-03-03 17:03:43,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:43,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:43,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:43,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:43,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:43,181 INFO L87 Difference]: Start difference. First operand 5315 states and 13930 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:45,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:45,670 INFO L93 Difference]: Finished difference Result 9317 states and 24416 transitions. [2022-03-03 17:03:45,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:03:45,670 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:45,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:45,683 INFO L225 Difference]: With dead ends: 9317 [2022-03-03 17:03:45,684 INFO L226 Difference]: Without dead ends: 8927 [2022-03-03 17:03:45,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 836 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1096, Invalid=4160, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:03:45,685 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 985 mSDsluCounter, 7503 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 7765 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:45,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [985 Valid, 7765 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:45,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8927 states. [2022-03-03 17:03:45,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8927 to 5327. [2022-03-03 17:03:45,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6194141945174616) internal successors, (13951), 5326 states have internal predecessors, (13951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13951 transitions. [2022-03-03 17:03:45,780 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13951 transitions. Word has length 135 [2022-03-03 17:03:45,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:45,780 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13951 transitions. [2022-03-03 17:03:45,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13951 transitions. [2022-03-03 17:03:45,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:45,786 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:45,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:45,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-03 17:03:45,787 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:45,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:45,788 INFO L85 PathProgramCache]: Analyzing trace with hash -951462211, now seen corresponding path program 34 times [2022-03-03 17:03:45,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:45,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220325958] [2022-03-03 17:03:45,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:45,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:46,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:46,114 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:46,114 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220325958] [2022-03-03 17:03:46,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220325958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:46,115 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:46,115 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:46,115 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10084830] [2022-03-03 17:03:46,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:46,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:46,116 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:46,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:46,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:46,116 INFO L87 Difference]: Start difference. First operand 5327 states and 13951 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:47,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:47,814 INFO L93 Difference]: Finished difference Result 9174 states and 24042 transitions. [2022-03-03 17:03:47,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:03:47,814 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:47,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:47,824 INFO L225 Difference]: With dead ends: 9174 [2022-03-03 17:03:47,825 INFO L226 Difference]: Without dead ends: 8877 [2022-03-03 17:03:47,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=910, Invalid=3512, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:03:47,825 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 913 mSDsluCounter, 7329 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 7598 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:47,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [913 Valid, 7598 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:03:47,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2022-03-03 17:03:47,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 5331. [2022-03-03 17:03:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6187617260787994) internal successors, (13958), 5330 states have internal predecessors, (13958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13958 transitions. [2022-03-03 17:03:47,909 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13958 transitions. Word has length 135 [2022-03-03 17:03:47,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:47,909 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13958 transitions. [2022-03-03 17:03:47,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:47,910 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13958 transitions. [2022-03-03 17:03:47,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:47,916 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:47,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:47,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-03 17:03:47,917 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash 926927305, now seen corresponding path program 35 times [2022-03-03 17:03:47,917 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:47,917 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895333537] [2022-03-03 17:03:47,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:47,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:48,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:48,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895333537] [2022-03-03 17:03:48,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895333537] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:48,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:48,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:48,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110772703] [2022-03-03 17:03:48,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:48,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:48,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:48,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:48,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:48,354 INFO L87 Difference]: Start difference. First operand 5331 states and 13958 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:50,339 INFO L93 Difference]: Finished difference Result 9074 states and 23788 transitions. [2022-03-03 17:03:50,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:03:50,339 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:50,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:50,352 INFO L225 Difference]: With dead ends: 9074 [2022-03-03 17:03:50,352 INFO L226 Difference]: Without dead ends: 8808 [2022-03-03 17:03:50,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=757, Invalid=2903, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:03:50,354 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 862 mSDsluCounter, 7177 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 7453 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:50,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 7453 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:50,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8808 states. [2022-03-03 17:03:50,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8808 to 5335. [2022-03-03 17:03:50,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-03-03 17:03:50,445 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-03-03 17:03:50,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:50,445 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-03-03 17:03:50,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:50,445 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-03-03 17:03:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:50,451 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:50,451 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:50,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-03 17:03:50,451 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:50,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:50,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1241921167, now seen corresponding path program 36 times [2022-03-03 17:03:50,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:50,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635022896] [2022-03-03 17:03:50,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:50,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:50,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:50,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:50,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635022896] [2022-03-03 17:03:50,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635022896] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:50,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:50,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:50,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200614376] [2022-03-03 17:03:50,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:50,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:50,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:50,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:50,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:50,978 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:53,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:53,068 INFO L93 Difference]: Finished difference Result 8940 states and 23440 transitions. [2022-03-03 17:03:53,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:03:53,068 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:53,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:53,104 INFO L225 Difference]: With dead ends: 8940 [2022-03-03 17:03:53,104 INFO L226 Difference]: Without dead ends: 8581 [2022-03-03 17:03:53,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=735, Invalid=2571, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:03:53,105 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 819 mSDsluCounter, 7426 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 7703 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:53,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [819 Valid, 7703 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8581 states. [2022-03-03 17:03:53,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8581 to 5239. [2022-03-03 17:03:53,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5239 states, 5238 states have (on average 2.631729667812142) internal successors, (13785), 5238 states have internal predecessors, (13785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:53,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 13785 transitions. [2022-03-03 17:03:53,184 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 13785 transitions. Word has length 135 [2022-03-03 17:03:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:53,184 INFO L470 AbstractCegarLoop]: Abstraction has 5239 states and 13785 transitions. [2022-03-03 17:03:53,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 13785 transitions. [2022-03-03 17:03:53,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:53,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:53,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:53,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-03 17:03:53,190 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:53,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:53,191 INFO L85 PathProgramCache]: Analyzing trace with hash 964380275, now seen corresponding path program 37 times [2022-03-03 17:03:53,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:53,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124233279] [2022-03-03 17:03:53,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:53,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:53,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:53,585 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:53,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124233279] [2022-03-03 17:03:53,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124233279] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:53,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:53,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:53,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512511109] [2022-03-03 17:03:53,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:53,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:53,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:53,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:53,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:53,586 INFO L87 Difference]: Start difference. First operand 5239 states and 13785 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:55,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:55,722 INFO L93 Difference]: Finished difference Result 10336 states and 27307 transitions. [2022-03-03 17:03:55,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:03:55,723 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:55,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:55,736 INFO L225 Difference]: With dead ends: 10336 [2022-03-03 17:03:55,736 INFO L226 Difference]: Without dead ends: 10045 [2022-03-03 17:03:55,737 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=941, Invalid=3091, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:03:55,737 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 929 mSDsluCounter, 7332 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 7606 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:55,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [929 Valid, 7606 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:03:55,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10045 states. [2022-03-03 17:03:55,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10045 to 5331. [2022-03-03 17:03:55,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.633020637898687) internal successors, (14034), 5330 states have internal predecessors, (14034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:55,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14034 transitions. [2022-03-03 17:03:55,816 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14034 transitions. Word has length 135 [2022-03-03 17:03:55,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:55,816 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14034 transitions. [2022-03-03 17:03:55,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:55,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14034 transitions. [2022-03-03 17:03:55,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:55,821 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:55,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:55,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-03 17:03:55,821 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:55,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:55,822 INFO L85 PathProgramCache]: Analyzing trace with hash 672674247, now seen corresponding path program 38 times [2022-03-03 17:03:55,822 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:55,822 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981664019] [2022-03-03 17:03:55,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:55,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:55,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:56,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:56,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981664019] [2022-03-03 17:03:56,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981664019] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:56,092 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:56,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:56,092 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828584070] [2022-03-03 17:03:56,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:56,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:56,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:56,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:56,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:56,093 INFO L87 Difference]: Start difference. First operand 5331 states and 14034 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:57,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:03:57,977 INFO L93 Difference]: Finished difference Result 10350 states and 27337 transitions. [2022-03-03 17:03:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:03:57,977 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:03:57,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:03:57,988 INFO L225 Difference]: With dead ends: 10350 [2022-03-03 17:03:57,988 INFO L226 Difference]: Without dead ends: 10084 [2022-03-03 17:03:57,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=755, Invalid=2785, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:03:57,989 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 895 mSDsluCounter, 7434 mSDsCounter, 0 mSdLazyCounter, 1518 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 7697 SdHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:03:57,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [895 Valid, 7697 Invalid, 1518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1518 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:03:57,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10084 states. [2022-03-03 17:03:58,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10084 to 5335. [2022-03-03 17:03:58,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.632358455193101) internal successors, (14041), 5334 states have internal predecessors, (14041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14041 transitions. [2022-03-03 17:03:58,064 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14041 transitions. Word has length 135 [2022-03-03 17:03:58,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:03:58,064 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14041 transitions. [2022-03-03 17:03:58,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:03:58,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14041 transitions. [2022-03-03 17:03:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:03:58,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:03:58,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:03:58,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-03 17:03:58,069 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:03:58,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:03:58,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1496174225, now seen corresponding path program 39 times [2022-03-03 17:03:58,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:03:58,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426545639] [2022-03-03 17:03:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:03:58,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:03:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:03:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:03:58,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:03:58,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426545639] [2022-03-03 17:03:58,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426545639] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:03:58,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:03:58,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:03:58,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887765582] [2022-03-03 17:03:58,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:03:58,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:03:58,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:03:58,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:03:58,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:03:58,493 INFO L87 Difference]: Start difference. First operand 5335 states and 14041 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:00,772 INFO L93 Difference]: Finished difference Result 10312 states and 27237 transitions. [2022-03-03 17:04:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:00,772 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:00,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:00,787 INFO L225 Difference]: With dead ends: 10312 [2022-03-03 17:04:00,787 INFO L226 Difference]: Without dead ends: 10041 [2022-03-03 17:04:00,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=825, Invalid=2835, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:04:00,788 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 891 mSDsluCounter, 6953 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 7234 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:00,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [891 Valid, 7234 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:04:00,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10041 states. [2022-03-03 17:04:00,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10041 to 5327. [2022-03-03 17:04:00,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.632932782576042) internal successors, (14023), 5326 states have internal predecessors, (14023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14023 transitions. [2022-03-03 17:04:00,875 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14023 transitions. Word has length 135 [2022-03-03 17:04:00,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:00,876 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14023 transitions. [2022-03-03 17:04:00,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14023 transitions. [2022-03-03 17:04:00,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:00,880 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:00,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:00,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-03 17:04:00,881 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:00,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:00,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1123394059, now seen corresponding path program 40 times [2022-03-03 17:04:00,881 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:00,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372941795] [2022-03-03 17:04:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:00,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:01,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:01,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:01,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372941795] [2022-03-03 17:04:01,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372941795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:01,400 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:01,400 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:01,400 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679465337] [2022-03-03 17:04:01,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:01,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:01,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:01,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:01,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:01,401 INFO L87 Difference]: Start difference. First operand 5327 states and 14023 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:03,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:03,714 INFO L93 Difference]: Finished difference Result 10482 states and 27675 transitions. [2022-03-03 17:04:03,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:04:03,715 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:03,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:03,726 INFO L225 Difference]: With dead ends: 10482 [2022-03-03 17:04:03,726 INFO L226 Difference]: Without dead ends: 10185 [2022-03-03 17:04:03,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 556 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=926, Invalid=3364, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:04:03,727 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 974 mSDsluCounter, 7157 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 7418 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:03,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 7418 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:04:03,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10185 states. [2022-03-03 17:04:03,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10185 to 5331. [2022-03-03 17:04:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6322701688555346) internal successors, (14030), 5330 states have internal predecessors, (14030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:03,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14030 transitions. [2022-03-03 17:04:03,798 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14030 transitions. Word has length 135 [2022-03-03 17:04:03,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:03,798 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14030 transitions. [2022-03-03 17:04:03,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:03,798 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14030 transitions. [2022-03-03 17:04:03,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:03,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:03,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:03,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-03 17:04:03,803 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:03,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:03,803 INFO L85 PathProgramCache]: Analyzing trace with hash 754995457, now seen corresponding path program 41 times [2022-03-03 17:04:03,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:03,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775518040] [2022-03-03 17:04:03,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:03,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:04,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:04,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:04,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775518040] [2022-03-03 17:04:04,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775518040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:04,145 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:04,145 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:04,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413107963] [2022-03-03 17:04:04,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:04,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:04,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:04,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:04,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:04,146 INFO L87 Difference]: Start difference. First operand 5331 states and 14030 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:05,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:05,833 INFO L93 Difference]: Finished difference Result 10366 states and 27377 transitions. [2022-03-03 17:04:05,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:05,833 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:05,847 INFO L225 Difference]: With dead ends: 10366 [2022-03-03 17:04:05,847 INFO L226 Difference]: Without dead ends: 10100 [2022-03-03 17:04:05,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=787, Invalid=2873, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:04:05,848 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 899 mSDsluCounter, 6699 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 6975 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:05,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [899 Valid, 6975 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:05,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10100 states. [2022-03-03 17:04:05,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10100 to 5335. [2022-03-03 17:04:05,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6316085489313834) internal successors, (14037), 5334 states have internal predecessors, (14037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:05,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14037 transitions. [2022-03-03 17:04:05,928 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14037 transitions. Word has length 135 [2022-03-03 17:04:05,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:05,928 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14037 transitions. [2022-03-03 17:04:05,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:05,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14037 transitions. [2022-03-03 17:04:05,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:05,933 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:05,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:05,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-03 17:04:05,933 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:05,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:05,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1413853015, now seen corresponding path program 42 times [2022-03-03 17:04:05,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:05,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59953926] [2022-03-03 17:04:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:05,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:06,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:06,255 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:06,255 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59953926] [2022-03-03 17:04:06,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59953926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:06,255 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:06,255 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:06,255 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480199114] [2022-03-03 17:04:06,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:06,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:06,255 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:06,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:06,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:06,256 INFO L87 Difference]: Start difference. First operand 5335 states and 14037 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:07,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:07,845 INFO L93 Difference]: Finished difference Result 10312 states and 27233 transitions. [2022-03-03 17:04:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:04:07,846 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:07,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:07,857 INFO L225 Difference]: With dead ends: 10312 [2022-03-03 17:04:07,858 INFO L226 Difference]: Without dead ends: 10037 [2022-03-03 17:04:07,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=795, Invalid=2745, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:04:07,862 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 882 mSDsluCounter, 7300 mSDsCounter, 0 mSdLazyCounter, 1467 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 7573 SdHoareTripleChecker+Invalid, 1467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:07,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [882 Valid, 7573 Invalid, 1467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1467 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:04:07,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10037 states. [2022-03-03 17:04:07,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10037 to 5323. [2022-03-03 17:04:07,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6328447951897784) internal successors, (14012), 5322 states have internal predecessors, (14012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 14012 transitions. [2022-03-03 17:04:07,935 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 14012 transitions. Word has length 135 [2022-03-03 17:04:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:07,935 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 14012 transitions. [2022-03-03 17:04:07,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:07,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 14012 transitions. [2022-03-03 17:04:07,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:07,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:07,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:07,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-03 17:04:07,940 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:07,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:07,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2033159067, now seen corresponding path program 43 times [2022-03-03 17:04:07,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:07,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212296867] [2022-03-03 17:04:07,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:07,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:08,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:08,346 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:08,346 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212296867] [2022-03-03 17:04:08,346 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212296867] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:08,346 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:08,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:08,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007562139] [2022-03-03 17:04:08,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:08,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:08,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:08,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:08,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:08,347 INFO L87 Difference]: Start difference. First operand 5323 states and 14012 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:10,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:10,694 INFO L93 Difference]: Finished difference Result 10649 states and 28103 transitions. [2022-03-03 17:04:10,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:04:10,694 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:10,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:10,710 INFO L225 Difference]: With dead ends: 10649 [2022-03-03 17:04:10,710 INFO L226 Difference]: Without dead ends: 10259 [2022-03-03 17:04:10,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 774 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1120, Invalid=3992, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:04:10,711 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1048 mSDsluCounter, 7292 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 7546 SdHoareTripleChecker+Invalid, 1503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:10,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1048 Valid, 7546 Invalid, 1503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:04:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2022-03-03 17:04:10,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 5335. [2022-03-03 17:04:10,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6308586426696663) internal successors, (14033), 5334 states have internal predecessors, (14033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:10,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14033 transitions. [2022-03-03 17:04:10,811 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14033 transitions. Word has length 135 [2022-03-03 17:04:10,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:10,811 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14033 transitions. [2022-03-03 17:04:10,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:10,812 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14033 transitions. [2022-03-03 17:04:10,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:10,817 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:10,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:10,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-03 17:04:10,825 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:10,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:10,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1868343193, now seen corresponding path program 44 times [2022-03-03 17:04:10,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:10,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883155383] [2022-03-03 17:04:10,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:10,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:11,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:11,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883155383] [2022-03-03 17:04:11,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883155383] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:11,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:11,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:11,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374063927] [2022-03-03 17:04:11,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:11,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:11,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:11,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:11,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:11,160 INFO L87 Difference]: Start difference. First operand 5335 states and 14033 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:13,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:13,351 INFO L93 Difference]: Finished difference Result 10498 states and 27707 transitions. [2022-03-03 17:04:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:04:13,352 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:13,365 INFO L225 Difference]: With dead ends: 10498 [2022-03-03 17:04:13,365 INFO L226 Difference]: Without dead ends: 10201 [2022-03-03 17:04:13,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=950, Invalid=3472, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:04:13,366 INFO L933 BasicCegarLoop]: 408 mSDtfsCounter, 985 mSDsluCounter, 7171 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 7434 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:13,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [985 Valid, 7434 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:13,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10201 states. [2022-03-03 17:04:13,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10201 to 5339. [2022-03-03 17:04:13,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.630198576245785) internal successors, (14040), 5338 states have internal predecessors, (14040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14040 transitions. [2022-03-03 17:04:13,460 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14040 transitions. Word has length 135 [2022-03-03 17:04:13,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:13,460 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 14040 transitions. [2022-03-03 17:04:13,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:13,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14040 transitions. [2022-03-03 17:04:13,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:13,466 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:13,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:13,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-03 17:04:13,467 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:13,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:13,467 INFO L85 PathProgramCache]: Analyzing trace with hash -548234587, now seen corresponding path program 45 times [2022-03-03 17:04:13,467 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:13,467 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708277779] [2022-03-03 17:04:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:13,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:13,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:13,822 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:13,822 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708277779] [2022-03-03 17:04:13,822 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708277779] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:13,822 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:13,822 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:13,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278305990] [2022-03-03 17:04:13,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:13,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:13,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:13,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:13,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:13,824 INFO L87 Difference]: Start difference. First operand 5339 states and 14040 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:15,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:15,986 INFO L93 Difference]: Finished difference Result 10382 states and 27409 transitions. [2022-03-03 17:04:15,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:15,987 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:15,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:16,000 INFO L225 Difference]: With dead ends: 10382 [2022-03-03 17:04:16,000 INFO L226 Difference]: Without dead ends: 10116 [2022-03-03 17:04:16,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=780, Invalid=2880, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:04:16,001 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 909 mSDsluCounter, 7028 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 7298 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:16,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 7298 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:16,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10116 states. [2022-03-03 17:04:16,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10116 to 5343. [2022-03-03 17:04:16,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.629539498315238) internal successors, (14047), 5342 states have internal predecessors, (14047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:16,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 14047 transitions. [2022-03-03 17:04:16,087 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 14047 transitions. Word has length 135 [2022-03-03 17:04:16,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:16,087 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 14047 transitions. [2022-03-03 17:04:16,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:16,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 14047 transitions. [2022-03-03 17:04:16,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:16,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:16,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:16,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-03 17:04:16,092 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:16,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:16,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1577884237, now seen corresponding path program 46 times [2022-03-03 17:04:16,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:16,092 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559289815] [2022-03-03 17:04:16,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:16,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:16,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:16,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:16,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559289815] [2022-03-03 17:04:16,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559289815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:16,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:16,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:16,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949590167] [2022-03-03 17:04:16,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:16,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:16,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:16,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:16,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:16,514 INFO L87 Difference]: Start difference. First operand 5343 states and 14047 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:18,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:18,691 INFO L93 Difference]: Finished difference Result 10320 states and 27243 transitions. [2022-03-03 17:04:18,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:04:18,691 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:18,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:18,705 INFO L225 Difference]: With dead ends: 10320 [2022-03-03 17:04:18,705 INFO L226 Difference]: Without dead ends: 10025 [2022-03-03 17:04:18,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=767, Invalid=2655, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:04:18,706 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 880 mSDsluCounter, 7285 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 7556 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:18,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [880 Valid, 7556 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:04:18,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10025 states. [2022-03-03 17:04:18,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10025 to 5311. [2022-03-03 17:04:18,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.632580037664783) internal successors, (13979), 5310 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:18,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13979 transitions. [2022-03-03 17:04:18,789 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13979 transitions. Word has length 135 [2022-03-03 17:04:18,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:18,789 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13979 transitions. [2022-03-03 17:04:18,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:18,789 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13979 transitions. [2022-03-03 17:04:18,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:18,794 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:18,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:18,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-03 17:04:18,794 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:18,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1233478637, now seen corresponding path program 47 times [2022-03-03 17:04:18,795 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:18,795 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641300808] [2022-03-03 17:04:18,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:18,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:19,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:19,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:19,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641300808] [2022-03-03 17:04:19,068 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641300808] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:19,068 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:19,068 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:19,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012725530] [2022-03-03 17:04:19,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:19,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:19,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:19,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:19,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:19,068 INFO L87 Difference]: Start difference. First operand 5311 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:21,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:21,258 INFO L93 Difference]: Finished difference Result 10891 states and 28653 transitions. [2022-03-03 17:04:21,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:04:21,259 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:21,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:21,275 INFO L225 Difference]: With dead ends: 10891 [2022-03-03 17:04:21,275 INFO L226 Difference]: Without dead ends: 10470 [2022-03-03 17:04:21,276 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 920 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1296, Invalid=4404, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:04:21,276 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1269 mSDsluCounter, 7435 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 7684 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:21,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 7684 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:04:21,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10470 states. [2022-03-03 17:04:21,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10470 to 5315. [2022-03-03 17:04:21,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6319156943921715) internal successors, (13986), 5314 states have internal predecessors, (13986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:21,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13986 transitions. [2022-03-03 17:04:21,427 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13986 transitions. Word has length 135 [2022-03-03 17:04:21,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:21,427 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13986 transitions. [2022-03-03 17:04:21,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:21,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13986 transitions. [2022-03-03 17:04:21,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:21,433 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:21,433 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:21,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-03 17:04:21,433 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:21,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:21,434 INFO L85 PathProgramCache]: Analyzing trace with hash -136258499, now seen corresponding path program 48 times [2022-03-03 17:04:21,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:21,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8239239] [2022-03-03 17:04:21,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:21,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:21,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:21,789 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:21,789 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8239239] [2022-03-03 17:04:21,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8239239] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:21,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:21,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:21,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098851130] [2022-03-03 17:04:21,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:21,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:21,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:21,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:21,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:21,790 INFO L87 Difference]: Start difference. First operand 5315 states and 13986 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:23,825 INFO L93 Difference]: Finished difference Result 10665 states and 28135 transitions. [2022-03-03 17:04:23,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:04:23,825 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:23,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:23,842 INFO L225 Difference]: With dead ends: 10665 [2022-03-03 17:04:23,842 INFO L226 Difference]: Without dead ends: 10275 [2022-03-03 17:04:23,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1140, Invalid=4116, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:04:23,843 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1026 mSDsluCounter, 7356 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 7610 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:23,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 7610 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:04:23,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10275 states. [2022-03-03 17:04:23,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10275 to 5327. [2022-03-03 17:04:23,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6299286518963574) internal successors, (14007), 5326 states have internal predecessors, (14007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:23,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 14007 transitions. [2022-03-03 17:04:23,952 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 14007 transitions. Word has length 135 [2022-03-03 17:04:23,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:23,952 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 14007 transitions. [2022-03-03 17:04:23,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 14007 transitions. [2022-03-03 17:04:23,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:23,958 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:23,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:23,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-03 17:04:23,959 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:23,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:23,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1281354703, now seen corresponding path program 49 times [2022-03-03 17:04:23,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:23,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638550146] [2022-03-03 17:04:23,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:23,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:24,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:24,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638550146] [2022-03-03 17:04:24,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638550146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:24,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:24,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:24,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36333944] [2022-03-03 17:04:24,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:24,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:24,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:24,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:24,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:24,364 INFO L87 Difference]: Start difference. First operand 5327 states and 14007 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:26,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:26,138 INFO L93 Difference]: Finished difference Result 10514 states and 27739 transitions. [2022-03-03 17:04:26,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:04:26,138 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:26,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:26,150 INFO L225 Difference]: With dead ends: 10514 [2022-03-03 17:04:26,150 INFO L226 Difference]: Without dead ends: 10217 [2022-03-03 17:04:26,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=940, Invalid=3482, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:04:26,150 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 993 mSDsluCounter, 7180 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 7441 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:26,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 7441 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:04:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10217 states. [2022-03-03 17:04:26,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10217 to 5331. [2022-03-03 17:04:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.629268292682927) internal successors, (14014), 5330 states have internal predecessors, (14014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:26,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 14014 transitions. [2022-03-03 17:04:26,215 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 14014 transitions. Word has length 135 [2022-03-03 17:04:26,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:26,215 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 14014 transitions. [2022-03-03 17:04:26,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:26,215 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 14014 transitions. [2022-03-03 17:04:26,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:26,220 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:26,221 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:26,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-03 17:04:26,221 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:26,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:26,222 INFO L85 PathProgramCache]: Analyzing trace with hash 597034813, now seen corresponding path program 50 times [2022-03-03 17:04:26,222 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:26,222 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933743578] [2022-03-03 17:04:26,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:26,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:26,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:26,661 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:26,661 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933743578] [2022-03-03 17:04:26,661 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933743578] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:26,661 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:26,661 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:26,661 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499422755] [2022-03-03 17:04:26,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:26,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:26,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:26,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:26,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:26,662 INFO L87 Difference]: Start difference. First operand 5331 states and 14014 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:28,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:28,802 INFO L93 Difference]: Finished difference Result 10398 states and 27441 transitions. [2022-03-03 17:04:28,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:28,803 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:28,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:28,818 INFO L225 Difference]: With dead ends: 10398 [2022-03-03 17:04:28,818 INFO L226 Difference]: Without dead ends: 10132 [2022-03-03 17:04:28,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=777, Invalid=2883, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:04:28,819 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 905 mSDsluCounter, 7428 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 7688 SdHoareTripleChecker+Invalid, 1465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:28,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 7688 Invalid, 1465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1465 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:04:28,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10132 states. [2022-03-03 17:04:28,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10132 to 5335. [2022-03-03 17:04:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6286089238845145) internal successors, (14021), 5334 states have internal predecessors, (14021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:28,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 14021 transitions. [2022-03-03 17:04:28,918 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 14021 transitions. Word has length 135 [2022-03-03 17:04:28,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:28,918 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 14021 transitions. [2022-03-03 17:04:28,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:28,918 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 14021 transitions. [2022-03-03 17:04:28,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:28,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:28,924 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:28,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-03 17:04:28,924 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:28,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:28,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1571813659, now seen corresponding path program 51 times [2022-03-03 17:04:28,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:28,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765084229] [2022-03-03 17:04:28,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:28,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:29,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:29,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765084229] [2022-03-03 17:04:29,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765084229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:29,353 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:29,353 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:29,353 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051987546] [2022-03-03 17:04:29,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:29,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:29,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:29,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:29,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:29,354 INFO L87 Difference]: Start difference. First operand 5335 states and 14021 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:31,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:31,260 INFO L93 Difference]: Finished difference Result 10312 states and 27217 transitions. [2022-03-03 17:04:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:04:31,260 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:31,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:31,274 INFO L225 Difference]: With dead ends: 10312 [2022-03-03 17:04:31,274 INFO L226 Difference]: Without dead ends: 10021 [2022-03-03 17:04:31,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=741, Invalid=2565, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:04:31,275 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 908 mSDsluCounter, 6898 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 7174 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:31,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 7174 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:31,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10021 states. [2022-03-03 17:04:31,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10021 to 5307. [2022-03-03 17:04:31,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.632491519035055) internal successors, (13968), 5306 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:31,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13968 transitions. [2022-03-03 17:04:31,365 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13968 transitions. Word has length 135 [2022-03-03 17:04:31,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:31,365 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13968 transitions. [2022-03-03 17:04:31,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:31,365 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13968 transitions. [2022-03-03 17:04:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:31,371 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:31,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:31,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-03 17:04:31,371 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:31,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:31,371 INFO L85 PathProgramCache]: Analyzing trace with hash -232723257, now seen corresponding path program 52 times [2022-03-03 17:04:31,371 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:31,371 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992276270] [2022-03-03 17:04:31,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:31,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:31,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:31,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:31,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:31,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992276270] [2022-03-03 17:04:31,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992276270] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:31,789 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:31,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:31,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707023310] [2022-03-03 17:04:31,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:31,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:31,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:31,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:31,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:31,789 INFO L87 Difference]: Start difference. First operand 5307 states and 13968 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:34,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:34,842 INFO L93 Difference]: Finished difference Result 11373 states and 29891 transitions. [2022-03-03 17:04:34,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 17:04:34,843 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:34,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:34,857 INFO L225 Difference]: With dead ends: 11373 [2022-03-03 17:04:34,857 INFO L226 Difference]: Without dead ends: 10549 [2022-03-03 17:04:34,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1037 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1446, Invalid=4716, Unknown=0, NotChecked=0, Total=6162 [2022-03-03 17:04:34,858 INFO L933 BasicCegarLoop]: 447 mSDtfsCounter, 1385 mSDsluCounter, 8250 mSDsCounter, 0 mSdLazyCounter, 1578 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 8500 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:34,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1385 Valid, 8500 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1578 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:04:34,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10549 states. [2022-03-03 17:04:34,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10549 to 5359. [2022-03-03 17:04:34,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5359 states, 5358 states have (on average 2.623926838372527) internal successors, (14059), 5358 states have internal predecessors, (14059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5359 states to 5359 states and 14059 transitions. [2022-03-03 17:04:34,939 INFO L78 Accepts]: Start accepts. Automaton has 5359 states and 14059 transitions. Word has length 135 [2022-03-03 17:04:34,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:34,939 INFO L470 AbstractCegarLoop]: Abstraction has 5359 states and 14059 transitions. [2022-03-03 17:04:34,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:34,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5359 states and 14059 transitions. [2022-03-03 17:04:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:34,944 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:34,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:34,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-03 17:04:34,945 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:34,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:34,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1549326399, now seen corresponding path program 53 times [2022-03-03 17:04:34,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:34,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965453554] [2022-03-03 17:04:34,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:34,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:35,217 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:35,217 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965453554] [2022-03-03 17:04:35,217 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965453554] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:35,217 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:35,217 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:35,217 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856915481] [2022-03-03 17:04:35,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:35,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:35,217 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:35,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:35,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:35,218 INFO L87 Difference]: Start difference. First operand 5359 states and 14059 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:37,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:37,915 INFO L93 Difference]: Finished difference Result 10939 states and 28733 transitions. [2022-03-03 17:04:37,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:04:37,916 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:37,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:37,930 INFO L225 Difference]: With dead ends: 10939 [2022-03-03 17:04:37,930 INFO L226 Difference]: Without dead ends: 10518 [2022-03-03 17:04:37,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1280, Invalid=4420, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:04:37,931 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1258 mSDsluCounter, 7568 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:37,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1258 Valid, 7827 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:37,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10518 states. [2022-03-03 17:04:38,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10518 to 5363. [2022-03-03 17:04:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5363 states, 5362 states have (on average 2.6232748974263336) internal successors, (14066), 5362 states have internal predecessors, (14066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:38,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5363 states to 5363 states and 14066 transitions. [2022-03-03 17:04:38,017 INFO L78 Accepts]: Start accepts. Automaton has 5363 states and 14066 transitions. Word has length 135 [2022-03-03 17:04:38,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:38,017 INFO L470 AbstractCegarLoop]: Abstraction has 5363 states and 14066 transitions. [2022-03-03 17:04:38,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:38,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5363 states and 14066 transitions. [2022-03-03 17:04:38,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:38,022 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:38,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:38,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-03 17:04:38,023 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:38,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:38,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1648420759, now seen corresponding path program 54 times [2022-03-03 17:04:38,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:38,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100321630] [2022-03-03 17:04:38,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:38,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:38,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:38,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100321630] [2022-03-03 17:04:38,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100321630] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:38,358 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:38,358 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:38,358 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893528069] [2022-03-03 17:04:38,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:38,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:38,358 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:38,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:38,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:38,359 INFO L87 Difference]: Start difference. First operand 5363 states and 14066 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:40,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:40,961 INFO L93 Difference]: Finished difference Result 10713 states and 28215 transitions. [2022-03-03 17:04:40,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:04:40,961 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:40,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:40,974 INFO L225 Difference]: With dead ends: 10713 [2022-03-03 17:04:40,974 INFO L226 Difference]: Without dead ends: 10323 [2022-03-03 17:04:40,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1124, Invalid=4132, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:04:40,975 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1026 mSDsluCounter, 7849 mSDsCounter, 0 mSdLazyCounter, 1559 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 8101 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:40,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1026 Valid, 8101 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1559 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:04:40,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10323 states. [2022-03-03 17:04:41,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10323 to 5375. [2022-03-03 17:04:41,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5375 states, 5374 states have (on average 2.6213248976553776) internal successors, (14087), 5374 states have internal predecessors, (14087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:41,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 14087 transitions. [2022-03-03 17:04:41,068 INFO L78 Accepts]: Start accepts. Automaton has 5375 states and 14087 transitions. Word has length 135 [2022-03-03 17:04:41,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:41,068 INFO L470 AbstractCegarLoop]: Abstraction has 5375 states and 14087 transitions. [2022-03-03 17:04:41,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:41,068 INFO L276 IsEmpty]: Start isEmpty. Operand 5375 states and 14087 transitions. [2022-03-03 17:04:41,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:41,074 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:41,074 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:41,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-03 17:04:41,075 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:41,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:41,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1501450333, now seen corresponding path program 55 times [2022-03-03 17:04:41,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:41,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293087703] [2022-03-03 17:04:41,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:41,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:41,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:41,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:41,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293087703] [2022-03-03 17:04:41,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293087703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:41,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:41,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:41,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756970885] [2022-03-03 17:04:41,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:41,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:41,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:41,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:41,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:41,433 INFO L87 Difference]: Start difference. First operand 5375 states and 14087 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:43,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:43,379 INFO L93 Difference]: Finished difference Result 10562 states and 27819 transitions. [2022-03-03 17:04:43,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:04:43,379 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:43,393 INFO L225 Difference]: With dead ends: 10562 [2022-03-03 17:04:43,393 INFO L226 Difference]: Without dead ends: 10265 [2022-03-03 17:04:43,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=930, Invalid=3492, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:04:43,394 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 972 mSDsluCounter, 7279 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 7546 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:43,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [972 Valid, 7546 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10265 states. [2022-03-03 17:04:43,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10265 to 5379. [2022-03-03 17:04:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 5378 states have (on average 2.620676831535887) internal successors, (14094), 5378 states have internal predecessors, (14094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 14094 transitions. [2022-03-03 17:04:43,476 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 14094 transitions. Word has length 135 [2022-03-03 17:04:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:43,476 INFO L470 AbstractCegarLoop]: Abstraction has 5379 states and 14094 transitions. [2022-03-03 17:04:43,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 14094 transitions. [2022-03-03 17:04:43,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:43,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:43,482 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:43,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-03 17:04:43,483 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:43,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:43,483 INFO L85 PathProgramCache]: Analyzing trace with hash -915127447, now seen corresponding path program 56 times [2022-03-03 17:04:43,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:43,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675471138] [2022-03-03 17:04:43,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:43,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:43,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:43,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:43,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675471138] [2022-03-03 17:04:43,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675471138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:43,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:43,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:43,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057392311] [2022-03-03 17:04:43,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:43,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:43,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:43,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:43,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:43,881 INFO L87 Difference]: Start difference. First operand 5379 states and 14094 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:45,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:45,738 INFO L93 Difference]: Finished difference Result 10446 states and 27521 transitions. [2022-03-03 17:04:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:04:45,738 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:45,749 INFO L225 Difference]: With dead ends: 10446 [2022-03-03 17:04:45,749 INFO L226 Difference]: Without dead ends: 10180 [2022-03-03 17:04:45,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=769, Invalid=2891, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:04:45,752 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 907 mSDsluCounter, 7534 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 7800 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:45,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [907 Valid, 7800 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:45,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10180 states. [2022-03-03 17:04:45,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10180 to 5383. [2022-03-03 17:04:45,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5383 states, 5382 states have (on average 2.620029728725381) internal successors, (14101), 5382 states have internal predecessors, (14101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:45,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5383 states to 5383 states and 14101 transitions. [2022-03-03 17:04:45,834 INFO L78 Accepts]: Start accepts. Automaton has 5383 states and 14101 transitions. Word has length 135 [2022-03-03 17:04:45,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:45,834 INFO L470 AbstractCegarLoop]: Abstraction has 5383 states and 14101 transitions. [2022-03-03 17:04:45,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5383 states and 14101 transitions. [2022-03-03 17:04:45,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:45,840 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:45,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:45,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-03 17:04:45,840 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:45,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:45,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1210991377, now seen corresponding path program 57 times [2022-03-03 17:04:45,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:45,841 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130141659] [2022-03-03 17:04:45,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:45,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:46,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:46,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130141659] [2022-03-03 17:04:46,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130141659] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:46,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:46,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:46,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446888210] [2022-03-03 17:04:46,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:46,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:46,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:46,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:46,306 INFO L87 Difference]: Start difference. First operand 5383 states and 14101 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:48,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:48,372 INFO L93 Difference]: Finished difference Result 10360 states and 27297 transitions. [2022-03-03 17:04:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:04:48,372 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:48,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:48,385 INFO L225 Difference]: With dead ends: 10360 [2022-03-03 17:04:48,386 INFO L226 Difference]: Without dead ends: 9969 [2022-03-03 17:04:48,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=739, Invalid=2567, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:04:48,386 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 897 mSDsluCounter, 6994 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 7276 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:48,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [897 Valid, 7276 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:48,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9969 states. [2022-03-03 17:04:48,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9969 to 5255. [2022-03-03 17:04:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5255 states, 5254 states have (on average 2.6313285116102016) internal successors, (13825), 5254 states have internal predecessors, (13825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 13825 transitions. [2022-03-03 17:04:48,464 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 13825 transitions. Word has length 135 [2022-03-03 17:04:48,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:48,464 INFO L470 AbstractCegarLoop]: Abstraction has 5255 states and 13825 transitions. [2022-03-03 17:04:48,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:48,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 13825 transitions. [2022-03-03 17:04:48,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:48,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:48,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:48,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-03 17:04:48,470 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:48,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:48,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1540155049, now seen corresponding path program 58 times [2022-03-03 17:04:48,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:48,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849450377] [2022-03-03 17:04:48,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:48,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:48,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:48,846 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:48,846 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849450377] [2022-03-03 17:04:48,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849450377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:48,846 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:48,846 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:48,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791083347] [2022-03-03 17:04:48,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:48,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:48,847 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:48,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:48,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:48,847 INFO L87 Difference]: Start difference. First operand 5255 states and 13825 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:51,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:51,892 INFO L93 Difference]: Finished difference Result 10803 states and 28272 transitions. [2022-03-03 17:04:51,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-03 17:04:51,893 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:51,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:51,904 INFO L225 Difference]: With dead ends: 10803 [2022-03-03 17:04:51,904 INFO L226 Difference]: Without dead ends: 9948 [2022-03-03 17:04:51,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1606, Invalid=5036, Unknown=0, NotChecked=0, Total=6642 [2022-03-03 17:04:51,905 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 1511 mSDsluCounter, 7778 mSDsCounter, 0 mSdLazyCounter, 1478 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 8044 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:51,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 8044 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1478 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:04:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9948 states. [2022-03-03 17:04:51,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9948 to 5259. [2022-03-03 17:04:51,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 2.6306580448839862) internal successors, (13832), 5258 states have internal predecessors, (13832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:51,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 13832 transitions. [2022-03-03 17:04:51,979 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 13832 transitions. Word has length 135 [2022-03-03 17:04:51,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:51,979 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 13832 transitions. [2022-03-03 17:04:51,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:51,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 13832 transitions. [2022-03-03 17:04:51,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:51,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:51,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:51,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-03 17:04:51,984 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:51,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:51,984 INFO L85 PathProgramCache]: Analyzing trace with hash 201842555, now seen corresponding path program 59 times [2022-03-03 17:04:51,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:51,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602914526] [2022-03-03 17:04:51,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:51,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:52,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:52,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602914526] [2022-03-03 17:04:52,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602914526] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:52,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:52,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:52,320 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669317332] [2022-03-03 17:04:52,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:52,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:52,320 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:52,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:52,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:52,321 INFO L87 Difference]: Start difference. First operand 5259 states and 13832 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:55,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:55,102 INFO L93 Difference]: Finished difference Result 10889 states and 28572 transitions. [2022-03-03 17:04:55,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 17:04:55,102 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:55,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:55,116 INFO L225 Difference]: With dead ends: 10889 [2022-03-03 17:04:55,116 INFO L226 Difference]: Without dead ends: 10065 [2022-03-03 17:04:55,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1430, Invalid=4732, Unknown=0, NotChecked=0, Total=6162 [2022-03-03 17:04:55,117 INFO L933 BasicCegarLoop]: 447 mSDtfsCounter, 1328 mSDsluCounter, 7399 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 7671 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:55,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1328 Valid, 7671 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:55,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10065 states. [2022-03-03 17:04:55,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10065 to 5311. [2022-03-03 17:04:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.6220338983050846) internal successors, (13923), 5310 states have internal predecessors, (13923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:55,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13923 transitions. [2022-03-03 17:04:55,245 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13923 transitions. Word has length 135 [2022-03-03 17:04:55,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:55,245 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13923 transitions. [2022-03-03 17:04:55,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:55,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13923 transitions. [2022-03-03 17:04:55,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:55,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:55,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:55,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-03 17:04:55,250 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:55,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:55,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1119777187, now seen corresponding path program 60 times [2022-03-03 17:04:55,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:55,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052716460] [2022-03-03 17:04:55,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:55,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:55,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:55,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:55,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052716460] [2022-03-03 17:04:55,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052716460] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:55,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:55,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:55,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497877439] [2022-03-03 17:04:55,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:55,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:55,544 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:55,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:55,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:55,545 INFO L87 Difference]: Start difference. First operand 5311 states and 13923 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:58,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:04:58,314 INFO L93 Difference]: Finished difference Result 10455 states and 27414 transitions. [2022-03-03 17:04:58,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:04:58,315 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:04:58,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:04:58,329 INFO L225 Difference]: With dead ends: 10455 [2022-03-03 17:04:58,329 INFO L226 Difference]: Without dead ends: 10034 [2022-03-03 17:04:58,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 996 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1266, Invalid=4434, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:04:58,330 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1244 mSDsluCounter, 6785 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 7062 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:04:58,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1244 Valid, 7062 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:04:58,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10034 states. [2022-03-03 17:04:58,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10034 to 5315. [2022-03-03 17:04:58,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5315 states, 5314 states have (on average 2.6213774934136245) internal successors, (13930), 5314 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:58,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5315 states to 5315 states and 13930 transitions. [2022-03-03 17:04:58,420 INFO L78 Accepts]: Start accepts. Automaton has 5315 states and 13930 transitions. Word has length 135 [2022-03-03 17:04:58,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:04:58,420 INFO L470 AbstractCegarLoop]: Abstraction has 5315 states and 13930 transitions. [2022-03-03 17:04:58,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:04:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5315 states and 13930 transitions. [2022-03-03 17:04:58,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:04:58,426 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:04:58,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:04:58,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-03 17:04:58,426 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:04:58,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:04:58,427 INFO L85 PathProgramCache]: Analyzing trace with hash -22557049, now seen corresponding path program 61 times [2022-03-03 17:04:58,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:04:58,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191419933] [2022-03-03 17:04:58,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:04:58,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:04:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:04:58,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:04:58,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:04:58,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191419933] [2022-03-03 17:04:58,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191419933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:04:58,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:04:58,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:04:58,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245201140] [2022-03-03 17:04:58,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:04:58,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:04:58,835 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:04:58,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:04:58,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:04:58,836 INFO L87 Difference]: Start difference. First operand 5315 states and 13930 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:00,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:00,990 INFO L93 Difference]: Finished difference Result 10229 states and 26896 transitions. [2022-03-03 17:05:00,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:05:00,991 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:00,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:01,004 INFO L225 Difference]: With dead ends: 10229 [2022-03-03 17:05:01,004 INFO L226 Difference]: Without dead ends: 9839 [2022-03-03 17:05:01,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 829 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1110, Invalid=4146, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:05:01,004 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1015 mSDsluCounter, 7457 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 7719 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:01,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 7719 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:05:01,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9839 states. [2022-03-03 17:05:01,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9839 to 5327. [2022-03-03 17:05:01,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6194141945174616) internal successors, (13951), 5326 states have internal predecessors, (13951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:01,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13951 transitions. [2022-03-03 17:05:01,087 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13951 transitions. Word has length 135 [2022-03-03 17:05:01,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:01,087 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13951 transitions. [2022-03-03 17:05:01,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:01,087 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13951 transitions. [2022-03-03 17:05:01,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:01,093 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:01,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:01,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-03 17:05:01,093 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:01,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:01,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1167653253, now seen corresponding path program 62 times [2022-03-03 17:05:01,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:01,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039594410] [2022-03-03 17:05:01,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:01,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:01,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:01,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039594410] [2022-03-03 17:05:01,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039594410] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:01,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:01,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:01,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930200369] [2022-03-03 17:05:01,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:01,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:01,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:01,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:01,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:01,514 INFO L87 Difference]: Start difference. First operand 5327 states and 13951 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:03,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:03,446 INFO L93 Difference]: Finished difference Result 10078 states and 26500 transitions. [2022-03-03 17:05:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:05:03,446 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:03,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:03,461 INFO L225 Difference]: With dead ends: 10078 [2022-03-03 17:05:03,461 INFO L226 Difference]: Without dead ends: 9781 [2022-03-03 17:05:03,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=920, Invalid=3502, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:05:03,462 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 931 mSDsluCounter, 8129 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 931 SdHoareTripleChecker+Valid, 8378 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:03,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [931 Valid, 8378 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:05:03,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2022-03-03 17:05:03,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 5331. [2022-03-03 17:05:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6187617260787994) internal successors, (13958), 5330 states have internal predecessors, (13958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:03,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13958 transitions. [2022-03-03 17:05:03,557 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13958 transitions. Word has length 135 [2022-03-03 17:05:03,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:03,557 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13958 transitions. [2022-03-03 17:05:03,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:03,558 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13958 transitions. [2022-03-03 17:05:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:03,563 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:03,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:03,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-03 17:05:03,563 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:03,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:03,564 INFO L85 PathProgramCache]: Analyzing trace with hash 710736263, now seen corresponding path program 63 times [2022-03-03 17:05:03,564 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:03,564 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135741589] [2022-03-03 17:05:03,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:03,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:03,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:03,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:03,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135741589] [2022-03-03 17:05:03,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135741589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:03,951 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:03,951 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:03,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026976167] [2022-03-03 17:05:03,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:03,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:03,951 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:03,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:03,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:03,952 INFO L87 Difference]: Start difference. First operand 5331 states and 13958 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:05,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:05,639 INFO L93 Difference]: Finished difference Result 9962 states and 26202 transitions. [2022-03-03 17:05:05,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:05,639 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:05,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:05,651 INFO L225 Difference]: With dead ends: 9962 [2022-03-03 17:05:05,651 INFO L226 Difference]: Without dead ends: 9696 [2022-03-03 17:05:05,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=763, Invalid=2897, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:05:05,652 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 872 mSDsluCounter, 7963 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 8221 SdHoareTripleChecker+Invalid, 1539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:05,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 8221 Invalid, 1539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:05:05,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9696 states. [2022-03-03 17:05:05,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9696 to 5335. [2022-03-03 17:05:05,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:05,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-03-03 17:05:05,731 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-03-03 17:05:05,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:05,731 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-03-03 17:05:05,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:05,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-03-03 17:05:05,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:05,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:05,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:05,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-03 17:05:05,736 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:05,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:05,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1458112209, now seen corresponding path program 64 times [2022-03-03 17:05:05,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:05,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283331849] [2022-03-03 17:05:05,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:05,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:06,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:06,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283331849] [2022-03-03 17:05:06,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283331849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:06,106 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:06,106 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:06,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096363119] [2022-03-03 17:05:06,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:06,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:06,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:06,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:06,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:06,107 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:08,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:08,092 INFO L93 Difference]: Finished difference Result 9876 states and 25978 transitions. [2022-03-03 17:05:08,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:05:08,092 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:08,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:08,105 INFO L225 Difference]: With dead ends: 9876 [2022-03-03 17:05:08,105 INFO L226 Difference]: Without dead ends: 9529 [2022-03-03 17:05:08,106 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=737, Invalid=2569, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:05:08,106 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 868 mSDsluCounter, 7044 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 7324 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:08,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 7324 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:05:08,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9529 states. [2022-03-03 17:05:08,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9529 to 5251. [2022-03-03 17:05:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5251 states, 5250 states have (on average 2.6312380952380954) internal successors, (13814), 5250 states have internal predecessors, (13814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5251 states to 5251 states and 13814 transitions. [2022-03-03 17:05:08,184 INFO L78 Accepts]: Start accepts. Automaton has 5251 states and 13814 transitions. Word has length 135 [2022-03-03 17:05:08,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:08,184 INFO L470 AbstractCegarLoop]: Abstraction has 5251 states and 13814 transitions. [2022-03-03 17:05:08,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:08,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5251 states and 13814 transitions. [2022-03-03 17:05:08,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:08,190 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:08,190 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:08,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-03 17:05:08,190 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:08,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:08,190 INFO L85 PathProgramCache]: Analyzing trace with hash 150088893, now seen corresponding path program 65 times [2022-03-03 17:05:08,190 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:08,190 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105016854] [2022-03-03 17:05:08,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:08,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:08,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:08,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105016854] [2022-03-03 17:05:08,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105016854] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:08,598 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:08,598 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:08,598 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39768730] [2022-03-03 17:05:08,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:08,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:08,599 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:08,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:08,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:08,599 INFO L87 Difference]: Start difference. First operand 5251 states and 13814 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:10,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:10,484 INFO L93 Difference]: Finished difference Result 10052 states and 26522 transitions. [2022-03-03 17:05:10,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:05:10,484 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:10,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:10,496 INFO L225 Difference]: With dead ends: 10052 [2022-03-03 17:05:10,496 INFO L226 Difference]: Without dead ends: 9761 [2022-03-03 17:05:10,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=945, Invalid=3087, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:05:10,497 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 909 mSDsluCounter, 6222 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:10,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [909 Valid, 6516 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:05:10,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2022-03-03 17:05:10,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 5483. [2022-03-03 17:05:10,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6355344764684423) internal successors, (14448), 5482 states have internal predecessors, (14448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:10,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14448 transitions. [2022-03-03 17:05:10,573 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14448 transitions. Word has length 135 [2022-03-03 17:05:10,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:10,573 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14448 transitions. [2022-03-03 17:05:10,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:10,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14448 transitions. [2022-03-03 17:05:10,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:10,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:10,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:10,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-03 17:05:10,578 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:10,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:10,579 INFO L85 PathProgramCache]: Analyzing trace with hash -141617135, now seen corresponding path program 66 times [2022-03-03 17:05:10,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:10,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895839482] [2022-03-03 17:05:10,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:10,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:10,864 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:10,864 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895839482] [2022-03-03 17:05:10,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895839482] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:10,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:10,887 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:10,887 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159848786] [2022-03-03 17:05:10,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:10,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:10,887 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:10,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:10,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:10,888 INFO L87 Difference]: Start difference. First operand 5483 states and 14448 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:12,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:12,382 INFO L93 Difference]: Finished difference Result 10066 states and 26552 transitions. [2022-03-03 17:05:12,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:05:12,383 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:12,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:12,396 INFO L225 Difference]: With dead ends: 10066 [2022-03-03 17:05:12,396 INFO L226 Difference]: Without dead ends: 9800 [2022-03-03 17:05:12,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=761, Invalid=2779, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:05:12,397 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 858 mSDsluCounter, 7052 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 7326 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:12,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 7326 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:12,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9800 states. [2022-03-03 17:05:12,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9800 to 5487. [2022-03-03 17:05:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.63488880787459) internal successors, (14455), 5486 states have internal predecessors, (14455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14455 transitions. [2022-03-03 17:05:12,482 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14455 transitions. Word has length 135 [2022-03-03 17:05:12,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:12,482 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14455 transitions. [2022-03-03 17:05:12,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:12,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14455 transitions. [2022-03-03 17:05:12,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:12,487 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:12,487 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:12,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-03 17:05:12,488 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:12,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:12,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1984501689, now seen corresponding path program 67 times [2022-03-03 17:05:12,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:12,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850654503] [2022-03-03 17:05:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:12,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:12,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:12,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:12,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850654503] [2022-03-03 17:05:12,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850654503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:12,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:12,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:12,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086634671] [2022-03-03 17:05:12,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:12,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:12,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:12,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:12,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:12,750 INFO L87 Difference]: Start difference. First operand 5487 states and 14455 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:14,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:14,258 INFO L93 Difference]: Finished difference Result 10028 states and 26452 transitions. [2022-03-03 17:05:14,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:14,258 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:14,270 INFO L225 Difference]: With dead ends: 10028 [2022-03-03 17:05:14,271 INFO L226 Difference]: Without dead ends: 9757 [2022-03-03 17:05:14,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=829, Invalid=2831, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:05:14,271 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 837 mSDsluCounter, 6604 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 6893 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:14,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [837 Valid, 6893 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:14,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9757 states. [2022-03-03 17:05:14,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9757 to 5479. [2022-03-03 17:05:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.635450894487039) internal successors, (14437), 5478 states have internal predecessors, (14437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:14,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14437 transitions. [2022-03-03 17:05:14,350 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14437 transitions. Word has length 135 [2022-03-03 17:05:14,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:14,351 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14437 transitions. [2022-03-03 17:05:14,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:14,351 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14437 transitions. [2022-03-03 17:05:14,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:14,355 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:14,356 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:14,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-03 17:05:14,356 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:14,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:14,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1937685441, now seen corresponding path program 68 times [2022-03-03 17:05:14,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:14,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94840079] [2022-03-03 17:05:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:14,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:14,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:14,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94840079] [2022-03-03 17:05:14,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94840079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:14,624 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:14,624 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:14,624 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604548395] [2022-03-03 17:05:14,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:14,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:14,624 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:14,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:14,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:14,624 INFO L87 Difference]: Start difference. First operand 5479 states and 14437 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:16,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:16,347 INFO L93 Difference]: Finished difference Result 10198 states and 26890 transitions. [2022-03-03 17:05:16,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:05:16,347 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:16,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:16,360 INFO L225 Difference]: With dead ends: 10198 [2022-03-03 17:05:16,360 INFO L226 Difference]: Without dead ends: 9901 [2022-03-03 17:05:16,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=936, Invalid=3354, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:05:16,362 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 928 mSDsluCounter, 7172 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 7436 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:16,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [928 Valid, 7436 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:16,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9901 states. [2022-03-03 17:05:16,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9901 to 5483. [2022-03-03 17:05:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6348048157606714) internal successors, (14444), 5482 states have internal predecessors, (14444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14444 transitions. [2022-03-03 17:05:16,443 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14444 transitions. Word has length 135 [2022-03-03 17:05:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:16,443 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14444 transitions. [2022-03-03 17:05:16,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:16,443 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14444 transitions. [2022-03-03 17:05:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:16,448 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:16,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:16,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-03 17:05:16,448 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:16,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:16,448 INFO L85 PathProgramCache]: Analyzing trace with hash -59295925, now seen corresponding path program 69 times [2022-03-03 17:05:16,448 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:16,448 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118284265] [2022-03-03 17:05:16,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:16,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:16,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:16,752 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:16,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118284265] [2022-03-03 17:05:16,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118284265] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:16,752 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:16,752 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:16,752 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140750480] [2022-03-03 17:05:16,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:16,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:16,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:16,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:16,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:16,753 INFO L87 Difference]: Start difference. First operand 5483 states and 14444 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:18,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:18,382 INFO L93 Difference]: Finished difference Result 10082 states and 26592 transitions. [2022-03-03 17:05:18,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:18,382 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:18,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:18,395 INFO L225 Difference]: With dead ends: 10082 [2022-03-03 17:05:18,395 INFO L226 Difference]: Without dead ends: 9816 [2022-03-03 17:05:18,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=791, Invalid=2869, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:05:18,396 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 868 mSDsluCounter, 7055 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 7330 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:18,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 7330 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:18,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9816 states. [2022-03-03 17:05:18,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9816 to 5487. [2022-03-03 17:05:18,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6341596791833757) internal successors, (14451), 5486 states have internal predecessors, (14451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:18,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14451 transitions. [2022-03-03 17:05:18,488 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14451 transitions. Word has length 135 [2022-03-03 17:05:18,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:18,488 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14451 transitions. [2022-03-03 17:05:18,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:18,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14451 transitions. [2022-03-03 17:05:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:18,494 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:18,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:18,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-03 17:05:18,494 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:18,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:18,494 INFO L85 PathProgramCache]: Analyzing trace with hash 2066822899, now seen corresponding path program 70 times [2022-03-03 17:05:18,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:18,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066501004] [2022-03-03 17:05:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:18,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:18,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:18,774 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:18,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066501004] [2022-03-03 17:05:18,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066501004] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:18,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:18,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:18,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404304539] [2022-03-03 17:05:18,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:18,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:18,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:18,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:18,775 INFO L87 Difference]: Start difference. First operand 5487 states and 14451 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:20,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:20,253 INFO L93 Difference]: Finished difference Result 10028 states and 26448 transitions. [2022-03-03 17:05:20,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:05:20,253 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:20,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:20,268 INFO L225 Difference]: With dead ends: 10028 [2022-03-03 17:05:20,268 INFO L226 Difference]: Without dead ends: 9753 [2022-03-03 17:05:20,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=799, Invalid=2741, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:05:20,295 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 836 mSDsluCounter, 6944 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 7225 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:20,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 7225 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:20,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9753 states. [2022-03-03 17:05:20,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9753 to 5475. [2022-03-03 17:05:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6353671903544025) internal successors, (14426), 5474 states have internal predecessors, (14426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:20,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14426 transitions. [2022-03-03 17:05:20,422 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14426 transitions. Word has length 135 [2022-03-03 17:05:20,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:20,422 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14426 transitions. [2022-03-03 17:05:20,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:20,422 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14426 transitions. [2022-03-03 17:05:20,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:20,428 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:20,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:20,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-03 17:05:20,429 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:20,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:20,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1447516847, now seen corresponding path program 71 times [2022-03-03 17:05:20,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:20,429 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203299295] [2022-03-03 17:05:20,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:20,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:20,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:20,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:20,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203299295] [2022-03-03 17:05:20,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203299295] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:20,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:20,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:20,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101892030] [2022-03-03 17:05:20,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:20,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:20,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:20,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:20,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:20,739 INFO L87 Difference]: Start difference. First operand 5475 states and 14426 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:22,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:22,750 INFO L93 Difference]: Finished difference Result 10365 states and 27318 transitions. [2022-03-03 17:05:22,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:05:22,751 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:22,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:22,765 INFO L225 Difference]: With dead ends: 10365 [2022-03-03 17:05:22,765 INFO L226 Difference]: Without dead ends: 9975 [2022-03-03 17:05:22,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1134, Invalid=3978, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:05:22,766 INFO L933 BasicCegarLoop]: 417 mSDtfsCounter, 979 mSDsluCounter, 7718 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 7965 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:22,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [979 Valid, 7965 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:22,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9975 states. [2022-03-03 17:05:22,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9975 to 5487. [2022-03-03 17:05:22,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.633430550492162) internal successors, (14447), 5486 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14447 transitions. [2022-03-03 17:05:22,862 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14447 transitions. Word has length 135 [2022-03-03 17:05:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:22,862 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14447 transitions. [2022-03-03 17:05:22,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14447 transitions. [2022-03-03 17:05:22,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:22,868 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:22,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:22,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-03 17:05:22,869 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:22,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:22,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1054051811, now seen corresponding path program 72 times [2022-03-03 17:05:22,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:22,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465809651] [2022-03-03 17:05:22,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:22,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:23,164 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:23,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465809651] [2022-03-03 17:05:23,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465809651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:23,164 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:23,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:23,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432571148] [2022-03-03 17:05:23,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:23,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:23,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:23,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:23,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:23,165 INFO L87 Difference]: Start difference. First operand 5487 states and 14447 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:24,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:24,935 INFO L93 Difference]: Finished difference Result 10214 states and 26922 transitions. [2022-03-03 17:05:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:05:24,935 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:24,950 INFO L225 Difference]: With dead ends: 10214 [2022-03-03 17:05:24,950 INFO L226 Difference]: Without dead ends: 9917 [2022-03-03 17:05:24,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=960, Invalid=3462, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:05:24,951 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 919 mSDsluCounter, 7188 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 7454 SdHoareTripleChecker+Invalid, 1472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:24,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [919 Valid, 7454 Invalid, 1472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1472 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:25,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9917 states. [2022-03-03 17:05:25,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9917 to 5491. [2022-03-03 17:05:25,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6327868852459018) internal successors, (14454), 5490 states have internal predecessors, (14454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:25,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14454 transitions. [2022-03-03 17:05:25,077 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14454 transitions. Word has length 135 [2022-03-03 17:05:25,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:25,077 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14454 transitions. [2022-03-03 17:05:25,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14454 transitions. [2022-03-03 17:05:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:25,082 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:25,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:25,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-03 17:05:25,083 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:25,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1362525969, now seen corresponding path program 73 times [2022-03-03 17:05:25,083 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:25,083 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015179878] [2022-03-03 17:05:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:25,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:25,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:25,342 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:25,342 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015179878] [2022-03-03 17:05:25,342 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015179878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:25,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:25,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:25,342 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528565530] [2022-03-03 17:05:25,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:25,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:25,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:25,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:25,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:25,342 INFO L87 Difference]: Start difference. First operand 5491 states and 14454 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:26,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:26,867 INFO L93 Difference]: Finished difference Result 10098 states and 26624 transitions. [2022-03-03 17:05:26,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:26,867 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:26,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:26,882 INFO L225 Difference]: With dead ends: 10098 [2022-03-03 17:05:26,882 INFO L226 Difference]: Without dead ends: 9832 [2022-03-03 17:05:26,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=786, Invalid=2874, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:05:26,882 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 870 mSDsluCounter, 7042 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 7315 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:26,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 7315 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:26,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9832 states. [2022-03-03 17:05:26,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9832 to 5495. [2022-03-03 17:05:26,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.632144157262468) internal successors, (14461), 5494 states have internal predecessors, (14461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:26,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14461 transitions. [2022-03-03 17:05:26,974 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14461 transitions. Word has length 135 [2022-03-03 17:05:26,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:26,974 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14461 transitions. [2022-03-03 17:05:26,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:26,974 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14461 transitions. [2022-03-03 17:05:26,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:26,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:26,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:26,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-03 17:05:26,980 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:26,981 INFO L85 PathProgramCache]: Analyzing trace with hash 763592855, now seen corresponding path program 74 times [2022-03-03 17:05:26,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:26,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479908085] [2022-03-03 17:05:26,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:26,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:27,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:27,289 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:27,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479908085] [2022-03-03 17:05:27,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479908085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:27,289 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:27,289 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:27,290 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517180757] [2022-03-03 17:05:27,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:27,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:27,290 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:27,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:27,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:27,290 INFO L87 Difference]: Start difference. First operand 5495 states and 14461 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:28,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:28,814 INFO L93 Difference]: Finished difference Result 10036 states and 26458 transitions. [2022-03-03 17:05:28,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:05:28,814 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:28,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:28,872 INFO L225 Difference]: With dead ends: 10036 [2022-03-03 17:05:28,873 INFO L226 Difference]: Without dead ends: 9741 [2022-03-03 17:05:28,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=769, Invalid=2653, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:05:28,873 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 833 mSDsluCounter, 7301 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 7575 SdHoareTripleChecker+Invalid, 1460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:28,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [833 Valid, 7575 Invalid, 1460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:28,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9741 states. [2022-03-03 17:05:28,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9741 to 5463. [2022-03-03 17:05:28,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.635115342365434) internal successors, (14393), 5462 states have internal predecessors, (14393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:28,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14393 transitions. [2022-03-03 17:05:28,942 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14393 transitions. Word has length 135 [2022-03-03 17:05:28,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:28,942 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14393 transitions. [2022-03-03 17:05:28,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:28,942 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14393 transitions. [2022-03-03 17:05:28,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:28,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:28,947 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:28,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-03 17:05:28,948 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:28,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:28,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2047770019, now seen corresponding path program 75 times [2022-03-03 17:05:28,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:28,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009922016] [2022-03-03 17:05:28,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:28,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:29,224 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:29,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009922016] [2022-03-03 17:05:29,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009922016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:29,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:29,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:29,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832721838] [2022-03-03 17:05:29,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:29,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:29,225 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:29,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:29,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:29,225 INFO L87 Difference]: Start difference. First operand 5463 states and 14393 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:31,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:31,404 INFO L93 Difference]: Finished difference Result 10607 states and 27868 transitions. [2022-03-03 17:05:31,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:05:31,404 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:31,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:31,418 INFO L225 Difference]: With dead ends: 10607 [2022-03-03 17:05:31,418 INFO L226 Difference]: Without dead ends: 10186 [2022-03-03 17:05:31,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1312, Invalid=4388, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:05:31,419 INFO L933 BasicCegarLoop]: 425 mSDtfsCounter, 1219 mSDsluCounter, 7448 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 7700 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:31,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1219 Valid, 7700 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:31,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10186 states. [2022-03-03 17:05:31,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10186 to 5467. [2022-03-03 17:05:31,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6344676180021955) internal successors, (14400), 5466 states have internal predecessors, (14400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14400 transitions. [2022-03-03 17:05:31,501 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14400 transitions. Word has length 135 [2022-03-03 17:05:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:31,501 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14400 transitions. [2022-03-03 17:05:31,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14400 transitions. [2022-03-03 17:05:31,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:31,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:31,506 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:31,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-03 17:05:31,506 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:31,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:31,506 INFO L85 PathProgramCache]: Analyzing trace with hash -950549881, now seen corresponding path program 76 times [2022-03-03 17:05:31,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:31,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114482451] [2022-03-03 17:05:31,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:31,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:31,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:31,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:31,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114482451] [2022-03-03 17:05:31,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114482451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:31,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:31,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:31,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637276490] [2022-03-03 17:05:31,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:31,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:31,794 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:31,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:31,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:31,795 INFO L87 Difference]: Start difference. First operand 5467 states and 14400 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:34,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:34,659 INFO L93 Difference]: Finished difference Result 10381 states and 27350 transitions. [2022-03-03 17:05:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:05:34,659 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:34,671 INFO L225 Difference]: With dead ends: 10381 [2022-03-03 17:05:34,671 INFO L226 Difference]: Without dead ends: 9991 [2022-03-03 17:05:34,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 808 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1152, Invalid=4104, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:05:34,672 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1001 mSDsluCounter, 7341 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 7600 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:34,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1001 Valid, 7600 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:05:34,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9991 states. [2022-03-03 17:05:34,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9991 to 5479. [2022-03-03 17:05:34,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6325301204819276) internal successors, (14421), 5478 states have internal predecessors, (14421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:34,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14421 transitions. [2022-03-03 17:05:34,756 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14421 transitions. Word has length 135 [2022-03-03 17:05:34,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:34,757 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14421 transitions. [2022-03-03 17:05:34,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:34,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14421 transitions. [2022-03-03 17:05:34,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:34,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:34,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:34,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-03 17:05:34,765 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:34,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:34,765 INFO L85 PathProgramCache]: Analyzing trace with hash -2095646085, now seen corresponding path program 77 times [2022-03-03 17:05:34,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:34,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526089914] [2022-03-03 17:05:34,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:34,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:35,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:35,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526089914] [2022-03-03 17:05:35,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526089914] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:35,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:35,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:35,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731218870] [2022-03-03 17:05:35,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:35,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:35,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:35,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:35,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:35,151 INFO L87 Difference]: Start difference. First operand 5479 states and 14421 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:37,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:37,532 INFO L93 Difference]: Finished difference Result 10230 states and 26954 transitions. [2022-03-03 17:05:37,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:05:37,533 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:37,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:37,545 INFO L225 Difference]: With dead ends: 10230 [2022-03-03 17:05:37,546 INFO L226 Difference]: Without dead ends: 9933 [2022-03-03 17:05:37,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=950, Invalid=3472, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:05:37,546 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 907 mSDsluCounter, 7602 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 7857 SdHoareTripleChecker+Invalid, 1495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:37,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [907 Valid, 7857 Invalid, 1495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:05:37,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9933 states. [2022-03-03 17:05:37,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9933 to 5483. [2022-03-03 17:05:37,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6318861729295877) internal successors, (14428), 5482 states have internal predecessors, (14428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:37,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14428 transitions. [2022-03-03 17:05:37,624 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14428 transitions. Word has length 135 [2022-03-03 17:05:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:37,624 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14428 transitions. [2022-03-03 17:05:37,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:37,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14428 transitions. [2022-03-03 17:05:37,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:37,630 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:37,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:37,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-03 17:05:37,631 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:37,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:37,631 INFO L85 PathProgramCache]: Analyzing trace with hash -217256569, now seen corresponding path program 78 times [2022-03-03 17:05:37,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:37,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888303524] [2022-03-03 17:05:37,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:37,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:38,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:38,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888303524] [2022-03-03 17:05:38,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888303524] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:38,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:38,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:38,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664990226] [2022-03-03 17:05:38,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:38,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:38,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:38,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:38,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:38,034 INFO L87 Difference]: Start difference. First operand 5483 states and 14428 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:39,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:39,502 INFO L93 Difference]: Finished difference Result 10114 states and 26656 transitions. [2022-03-03 17:05:39,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:39,502 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:39,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:39,517 INFO L225 Difference]: With dead ends: 10114 [2022-03-03 17:05:39,517 INFO L226 Difference]: Without dead ends: 9848 [2022-03-03 17:05:39,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=783, Invalid=2877, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:05:39,518 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 847 mSDsluCounter, 6723 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 6996 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:39,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 6996 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:39,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9848 states. [2022-03-03 17:05:39,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9848 to 5487. [2022-03-03 17:05:39,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6312431644185197) internal successors, (14435), 5486 states have internal predecessors, (14435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:39,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14435 transitions. [2022-03-03 17:05:39,616 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14435 transitions. Word has length 135 [2022-03-03 17:05:39,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:39,616 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14435 transitions. [2022-03-03 17:05:39,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:39,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14435 transitions. [2022-03-03 17:05:39,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:39,623 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:39,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:39,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-03 17:05:39,623 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:39,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:39,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1908862255, now seen corresponding path program 79 times [2022-03-03 17:05:39,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:39,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577205495] [2022-03-03 17:05:39,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:39,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:39,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:39,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577205495] [2022-03-03 17:05:39,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577205495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:39,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:39,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:39,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087798278] [2022-03-03 17:05:39,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:39,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:39,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:39,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:39,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:39,933 INFO L87 Difference]: Start difference. First operand 5487 states and 14435 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:41,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:41,946 INFO L93 Difference]: Finished difference Result 10028 states and 26432 transitions. [2022-03-03 17:05:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:05:41,946 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:41,961 INFO L225 Difference]: With dead ends: 10028 [2022-03-03 17:05:41,961 INFO L226 Difference]: Without dead ends: 9737 [2022-03-03 17:05:41,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=743, Invalid=2563, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:05:41,962 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 828 mSDsluCounter, 7302 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 7574 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:41,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [828 Valid, 7574 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:05:41,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9737 states. [2022-03-03 17:05:42,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9737 to 5459. [2022-03-03 17:05:42,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 2.635031146940271) internal successors, (14382), 5458 states have internal predecessors, (14382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 14382 transitions. [2022-03-03 17:05:42,061 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 14382 transitions. Word has length 135 [2022-03-03 17:05:42,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:42,062 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 14382 transitions. [2022-03-03 17:05:42,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 14382 transitions. [2022-03-03 17:05:42,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:42,067 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:42,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:42,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-03 17:05:42,068 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:42,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:42,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1047014639, now seen corresponding path program 80 times [2022-03-03 17:05:42,068 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:42,068 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821877806] [2022-03-03 17:05:42,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:42,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:42,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:42,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821877806] [2022-03-03 17:05:42,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821877806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:42,497 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:42,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:42,497 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114067239] [2022-03-03 17:05:42,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:42,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:42,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:42,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:42,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:42,498 INFO L87 Difference]: Start difference. First operand 5459 states and 14382 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:45,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:45,672 INFO L93 Difference]: Finished difference Result 10361 states and 27140 transitions. [2022-03-03 17:05:45,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 17:05:45,672 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:45,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:45,683 INFO L225 Difference]: With dead ends: 10361 [2022-03-03 17:05:45,684 INFO L226 Difference]: Without dead ends: 9537 [2022-03-03 17:05:45,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1464, Invalid=4698, Unknown=0, NotChecked=0, Total=6162 [2022-03-03 17:05:45,685 INFO L933 BasicCegarLoop]: 449 mSDtfsCounter, 1342 mSDsluCounter, 7787 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 8051 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:45,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1342 Valid, 8051 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:05:45,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9537 states. [2022-03-03 17:05:45,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9537 to 5511. [2022-03-03 17:05:45,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5511 states, 5510 states have (on average 2.626678765880218) internal successors, (14473), 5510 states have internal predecessors, (14473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:45,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5511 states to 5511 states and 14473 transitions. [2022-03-03 17:05:45,756 INFO L78 Accepts]: Start accepts. Automaton has 5511 states and 14473 transitions. Word has length 135 [2022-03-03 17:05:45,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:45,756 INFO L470 AbstractCegarLoop]: Abstraction has 5511 states and 14473 transitions. [2022-03-03 17:05:45,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:45,757 INFO L276 IsEmpty]: Start isEmpty. Operand 5511 states and 14473 transitions. [2022-03-03 17:05:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:45,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:45,761 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:45,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-03 17:05:45,762 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:45,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:45,762 INFO L85 PathProgramCache]: Analyzing trace with hash 735035017, now seen corresponding path program 81 times [2022-03-03 17:05:45,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:45,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216064576] [2022-03-03 17:05:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:45,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:46,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:46,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:46,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216064576] [2022-03-03 17:05:46,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216064576] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:46,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:46,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:46,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763131941] [2022-03-03 17:05:46,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:46,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:46,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:46,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:46,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:46,203 INFO L87 Difference]: Start difference. First operand 5511 states and 14473 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:48,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:48,926 INFO L93 Difference]: Finished difference Result 10187 states and 26677 transitions. [2022-03-03 17:05:48,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:05:48,926 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:48,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:48,940 INFO L225 Difference]: With dead ends: 10187 [2022-03-03 17:05:48,940 INFO L226 Difference]: Without dead ends: 9766 [2022-03-03 17:05:48,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 980 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1298, Invalid=4402, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:05:48,940 INFO L933 BasicCegarLoop]: 430 mSDtfsCounter, 1219 mSDsluCounter, 7951 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 8197 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:48,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1219 Valid, 8197 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:05:48,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2022-03-03 17:05:49,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 5515. [2022-03-03 17:05:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5515 states, 5514 states have (on average 2.6260428001450853) internal successors, (14480), 5514 states have internal predecessors, (14480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:49,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5515 states to 5515 states and 14480 transitions. [2022-03-03 17:05:49,035 INFO L78 Accepts]: Start accepts. Automaton has 5515 states and 14480 transitions. Word has length 135 [2022-03-03 17:05:49,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:49,035 INFO L470 AbstractCegarLoop]: Abstraction has 5515 states and 14480 transitions. [2022-03-03 17:05:49,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:49,035 INFO L276 IsEmpty]: Start isEmpty. Operand 5515 states and 14480 transitions. [2022-03-03 17:05:49,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:49,041 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:49,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:49,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-03 17:05:49,041 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:49,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:49,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1832255155, now seen corresponding path program 82 times [2022-03-03 17:05:49,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:49,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574928996] [2022-03-03 17:05:49,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:49,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:49,413 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:49,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574928996] [2022-03-03 17:05:49,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574928996] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:49,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:49,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:49,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732189445] [2022-03-03 17:05:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:49,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:49,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:49,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:49,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:49,414 INFO L87 Difference]: Start difference. First operand 5515 states and 14480 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:51,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:51,936 INFO L93 Difference]: Finished difference Result 9961 states and 26159 transitions. [2022-03-03 17:05:51,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:05:51,937 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:51,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:51,951 INFO L225 Difference]: With dead ends: 9961 [2022-03-03 17:05:51,951 INFO L226 Difference]: Without dead ends: 9571 [2022-03-03 17:05:51,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 869 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1140, Invalid=4116, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:05:51,952 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 978 mSDsluCounter, 7449 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 7711 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:51,952 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 7711 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:05:51,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9571 states. [2022-03-03 17:05:52,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9571 to 5527. [2022-03-03 17:05:52,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 5526 states have (on average 2.624140427072023) internal successors, (14501), 5526 states have internal predecessors, (14501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:52,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 14501 transitions. [2022-03-03 17:05:52,036 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 14501 transitions. Word has length 135 [2022-03-03 17:05:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:52,036 INFO L470 AbstractCegarLoop]: Abstraction has 5527 states and 14501 transitions. [2022-03-03 17:05:52,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 14501 transitions. [2022-03-03 17:05:52,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:52,041 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:52,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:52,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-03 17:05:52,041 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:52,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:52,042 INFO L85 PathProgramCache]: Analyzing trace with hash 687158951, now seen corresponding path program 83 times [2022-03-03 17:05:52,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:52,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868555648] [2022-03-03 17:05:52,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:52,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:52,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:52,433 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:52,433 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868555648] [2022-03-03 17:05:52,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868555648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:52,433 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:52,433 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:52,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843012699] [2022-03-03 17:05:52,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:52,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:52,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:52,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:52,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:52,434 INFO L87 Difference]: Start difference. First operand 5527 states and 14501 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:54,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:54,346 INFO L93 Difference]: Finished difference Result 9810 states and 25763 transitions. [2022-03-03 17:05:54,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:05:54,346 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:54,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:54,357 INFO L225 Difference]: With dead ends: 9810 [2022-03-03 17:05:54,358 INFO L226 Difference]: Without dead ends: 9513 [2022-03-03 17:05:54,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=942, Invalid=3480, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:05:54,358 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 925 mSDsluCounter, 7279 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 7548 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:54,358 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [925 Valid, 7548 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:05:54,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9513 states. [2022-03-03 17:05:54,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9513 to 5531. [2022-03-03 17:05:54,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5531 states, 5530 states have (on average 2.623508137432188) internal successors, (14508), 5530 states have internal predecessors, (14508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5531 states to 5531 states and 14508 transitions. [2022-03-03 17:05:54,436 INFO L78 Accepts]: Start accepts. Automaton has 5531 states and 14508 transitions. Word has length 135 [2022-03-03 17:05:54,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:54,436 INFO L470 AbstractCegarLoop]: Abstraction has 5531 states and 14508 transitions. [2022-03-03 17:05:54,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:54,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5531 states and 14508 transitions. [2022-03-03 17:05:54,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:54,441 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:54,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:54,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-03 17:05:54,441 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:54,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:54,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1729418829, now seen corresponding path program 84 times [2022-03-03 17:05:54,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:54,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771362003] [2022-03-03 17:05:54,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:54,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:54,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:54,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771362003] [2022-03-03 17:05:54,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771362003] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:54,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:54,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:54,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785767759] [2022-03-03 17:05:54,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:54,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:54,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:54,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:54,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:54,716 INFO L87 Difference]: Start difference. First operand 5531 states and 14508 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:56,364 INFO L93 Difference]: Finished difference Result 9694 states and 25465 transitions. [2022-03-03 17:05:56,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:05:56,364 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:56,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:56,376 INFO L225 Difference]: With dead ends: 9694 [2022-03-03 17:05:56,376 INFO L226 Difference]: Without dead ends: 9428 [2022-03-03 17:05:56,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=775, Invalid=2885, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:05:56,377 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 869 mSDsluCounter, 7132 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 7408 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:56,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [869 Valid, 7408 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:56,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9428 states. [2022-03-03 17:05:56,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9428 to 5535. [2022-03-03 17:05:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5534 states have (on average 2.6228767618359234) internal successors, (14515), 5534 states have internal predecessors, (14515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:56,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 14515 transitions. [2022-03-03 17:05:56,456 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 14515 transitions. Word has length 135 [2022-03-03 17:05:56,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:56,457 INFO L470 AbstractCegarLoop]: Abstraction has 5535 states and 14515 transitions. [2022-03-03 17:05:56,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:56,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 14515 transitions. [2022-03-03 17:05:56,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:56,462 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:56,462 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:56,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-03 17:05:56,462 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:56,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:56,463 INFO L85 PathProgramCache]: Analyzing trace with hash 396699995, now seen corresponding path program 85 times [2022-03-03 17:05:56,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:56,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688782494] [2022-03-03 17:05:56,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:56,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:56,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:56,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688782494] [2022-03-03 17:05:56,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688782494] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:56,881 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:56,881 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:56,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858017307] [2022-03-03 17:05:56,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:56,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:56,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:56,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:56,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:56,882 INFO L87 Difference]: Start difference. First operand 5535 states and 14515 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:58,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:05:58,369 INFO L93 Difference]: Finished difference Result 9608 states and 25241 transitions. [2022-03-03 17:05:58,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:05:58,369 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:05:58,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:05:58,382 INFO L225 Difference]: With dead ends: 9608 [2022-03-03 17:05:58,382 INFO L226 Difference]: Without dead ends: 9217 [2022-03-03 17:05:58,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=743, Invalid=2563, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:05:58,382 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 847 mSDsluCounter, 6276 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 6568 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:05:58,382 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 6568 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1227 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:05:58,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9217 states. [2022-03-03 17:05:58,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9217 to 5407. [2022-03-03 17:05:58,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 5406 states have (on average 2.6250462449130594) internal successors, (14191), 5406 states have internal predecessors, (14191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:58,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 14191 transitions. [2022-03-03 17:05:58,465 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 14191 transitions. Word has length 135 [2022-03-03 17:05:58,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:05:58,465 INFO L470 AbstractCegarLoop]: Abstraction has 5407 states and 14191 transitions. [2022-03-03 17:05:58,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:05:58,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 14191 transitions. [2022-03-03 17:05:58,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:05:58,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:05:58,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:05:58,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-03 17:05:58,470 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:05:58,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:05:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash 783129917, now seen corresponding path program 86 times [2022-03-03 17:05:58,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:05:58,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279445802] [2022-03-03 17:05:58,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:05:58,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:05:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:05:58,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:05:58,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:05:58,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279445802] [2022-03-03 17:05:58,767 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279445802] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:05:58,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:05:58,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:05:58,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029579894] [2022-03-03 17:05:58,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:05:58,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:05:58,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:05:58,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:05:58,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:05:58,768 INFO L87 Difference]: Start difference. First operand 5407 states and 14191 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:00,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:00,905 INFO L93 Difference]: Finished difference Result 9720 states and 25557 transitions. [2022-03-03 17:06:00,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:06:00,905 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:00,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:00,918 INFO L225 Difference]: With dead ends: 9720 [2022-03-03 17:06:00,918 INFO L226 Difference]: Without dead ends: 9429 [2022-03-03 17:06:00,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=945, Invalid=3087, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:06:00,919 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 875 mSDsluCounter, 7160 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 7423 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:00,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [875 Valid, 7423 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:00,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9429 states. [2022-03-03 17:06:00,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9429 to 5443. [2022-03-03 17:06:00,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.625137816979052) internal successors, (14286), 5442 states have internal predecessors, (14286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:00,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14286 transitions. [2022-03-03 17:06:00,995 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14286 transitions. Word has length 135 [2022-03-03 17:06:00,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:00,995 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14286 transitions. [2022-03-03 17:06:00,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:00,995 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14286 transitions. [2022-03-03 17:06:01,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:01,000 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:01,000 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:01,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-03 17:06:01,000 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:01,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:01,000 INFO L85 PathProgramCache]: Analyzing trace with hash 491423889, now seen corresponding path program 87 times [2022-03-03 17:06:01,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:01,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084338226] [2022-03-03 17:06:01,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:01,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:01,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:01,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:01,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084338226] [2022-03-03 17:06:01,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084338226] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:01,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:01,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:01,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635789732] [2022-03-03 17:06:01,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:01,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:01,354 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:01,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:01,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:01,355 INFO L87 Difference]: Start difference. First operand 5443 states and 14286 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:03,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:03,503 INFO L93 Difference]: Finished difference Result 9686 states and 25471 transitions. [2022-03-03 17:06:03,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:06:03,503 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:03,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:03,515 INFO L225 Difference]: With dead ends: 9686 [2022-03-03 17:06:03,515 INFO L226 Difference]: Without dead ends: 9420 [2022-03-03 17:06:03,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=767, Invalid=2773, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:06:03,515 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 843 mSDsluCounter, 6855 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 7113 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:03,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [843 Valid, 7113 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:06:03,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9420 states. [2022-03-03 17:06:03,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9420 to 5447. [2022-03-03 17:06:03,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6244950422328315) internal successors, (14293), 5446 states have internal predecessors, (14293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14293 transitions. [2022-03-03 17:06:03,582 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14293 transitions. Word has length 135 [2022-03-03 17:06:03,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:03,582 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14293 transitions. [2022-03-03 17:06:03,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:03,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14293 transitions. [2022-03-03 17:06:03,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:03,586 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:03,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:03,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-03 17:06:03,587 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:03,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:03,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1677424583, now seen corresponding path program 88 times [2022-03-03 17:06:03,587 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:03,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509352638] [2022-03-03 17:06:03,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:03,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:04,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:04,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:04,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509352638] [2022-03-03 17:06:04,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509352638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:04,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:04,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:04,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317845387] [2022-03-03 17:06:04,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:04,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:04,031 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:04,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:04,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:04,031 INFO L87 Difference]: Start difference. First operand 5447 states and 14293 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:06,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:06,281 INFO L93 Difference]: Finished difference Result 9648 states and 25371 transitions. [2022-03-03 17:06:06,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:06:06,282 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:06,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:06,294 INFO L225 Difference]: With dead ends: 9648 [2022-03-03 17:06:06,294 INFO L226 Difference]: Without dead ends: 9377 [2022-03-03 17:06:06,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=828, Invalid=2832, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:06:06,294 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 847 mSDsluCounter, 6768 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:06,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [847 Valid, 7040 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:06:06,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9377 states. [2022-03-03 17:06:06,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9377 to 5439. [2022-03-03 17:06:06,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.625045972784112) internal successors, (14275), 5438 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:06,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14275 transitions. [2022-03-03 17:06:06,374 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14275 transitions. Word has length 135 [2022-03-03 17:06:06,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:06,374 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14275 transitions. [2022-03-03 17:06:06,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:06,374 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14275 transitions. [2022-03-03 17:06:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:06,379 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:06,379 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] [2022-03-03 17:06:06,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-03 17:06:06,379 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:06,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:06,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1304644417, now seen corresponding path program 89 times [2022-03-03 17:06:06,380 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:06,380 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313127396] [2022-03-03 17:06:06,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:06,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:06,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:06,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313127396] [2022-03-03 17:06:06,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313127396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:06,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:06,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:06,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028214488] [2022-03-03 17:06:06,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:06,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:06,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:06,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:06,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:06,780 INFO L87 Difference]: Start difference. First operand 5439 states and 14275 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:08,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:08,563 INFO L93 Difference]: Finished difference Result 9818 states and 25809 transitions. [2022-03-03 17:06:08,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:06:08,563 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:08,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:08,575 INFO L225 Difference]: With dead ends: 9818 [2022-03-03 17:06:08,576 INFO L226 Difference]: Without dead ends: 9521 [2022-03-03 17:06:08,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=946, Invalid=3344, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:06:08,576 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 898 mSDsluCounter, 7361 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 7600 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:08,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [898 Valid, 7600 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:08,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9521 states. [2022-03-03 17:06:08,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9521 to 5443. [2022-03-03 17:06:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6244027930907756) internal successors, (14282), 5442 states have internal predecessors, (14282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:08,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14282 transitions. [2022-03-03 17:06:08,650 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14282 transitions. Word has length 135 [2022-03-03 17:06:08,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:08,650 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14282 transitions. [2022-03-03 17:06:08,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:08,650 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14282 transitions. [2022-03-03 17:06:08,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:08,655 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:08,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:08,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-03 17:06:08,655 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:08,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:08,655 INFO L85 PathProgramCache]: Analyzing trace with hash 573745099, now seen corresponding path program 90 times [2022-03-03 17:06:08,655 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:08,655 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340029604] [2022-03-03 17:06:08,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:08,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:08,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:08,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340029604] [2022-03-03 17:06:08,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340029604] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:08,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:08,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:08,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514217646] [2022-03-03 17:06:08,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:08,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:08,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:08,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:08,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:08,947 INFO L87 Difference]: Start difference. First operand 5443 states and 14282 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:10,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:10,515 INFO L93 Difference]: Finished difference Result 9702 states and 25511 transitions. [2022-03-03 17:06:10,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:06:10,515 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:10,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:10,529 INFO L225 Difference]: With dead ends: 9702 [2022-03-03 17:06:10,529 INFO L226 Difference]: Without dead ends: 9436 [2022-03-03 17:06:10,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=796, Invalid=2864, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:06:10,530 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 844 mSDsluCounter, 7238 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 7489 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:10,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 7489 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:10,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9436 states. [2022-03-03 17:06:10,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9436 to 5447. [2022-03-03 17:06:10,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.623760558207859) internal successors, (14289), 5446 states have internal predecessors, (14289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14289 transitions. [2022-03-03 17:06:10,623 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14289 transitions. Word has length 135 [2022-03-03 17:06:10,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:10,623 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14289 transitions. [2022-03-03 17:06:10,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14289 transitions. [2022-03-03 17:06:10,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:10,629 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:10,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:10,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-03 17:06:10,629 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:10,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:10,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1595103373, now seen corresponding path program 91 times [2022-03-03 17:06:10,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:10,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823796358] [2022-03-03 17:06:10,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:10,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:10,944 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:10,944 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823796358] [2022-03-03 17:06:10,944 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823796358] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:10,944 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:10,944 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:10,944 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868324129] [2022-03-03 17:06:10,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:10,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:10,945 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:10,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:10,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:10,945 INFO L87 Difference]: Start difference. First operand 5447 states and 14289 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:13,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:13,005 INFO L93 Difference]: Finished difference Result 9648 states and 25367 transitions. [2022-03-03 17:06:13,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:06:13,005 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:13,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:13,016 INFO L225 Difference]: With dead ends: 9648 [2022-03-03 17:06:13,017 INFO L226 Difference]: Without dead ends: 9373 [2022-03-03 17:06:13,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=798, Invalid=2742, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:06:13,017 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 836 mSDsluCounter, 6747 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 7016 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:13,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 7016 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:06:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9373 states. [2022-03-03 17:06:13,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9373 to 5435. [2022-03-03 17:06:13,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.624953993375046) internal successors, (14264), 5434 states have internal predecessors, (14264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:13,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14264 transitions. [2022-03-03 17:06:13,085 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14264 transitions. Word has length 135 [2022-03-03 17:06:13,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:13,085 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14264 transitions. [2022-03-03 17:06:13,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:13,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14264 transitions. [2022-03-03 17:06:13,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:13,090 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:13,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:13,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-03 17:06:13,090 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:13,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:13,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2080557871, now seen corresponding path program 92 times [2022-03-03 17:06:13,091 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:13,091 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278743923] [2022-03-03 17:06:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:13,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:13,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:13,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:13,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278743923] [2022-03-03 17:06:13,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278743923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:13,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:13,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:13,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206776281] [2022-03-03 17:06:13,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:13,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:13,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:13,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:13,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:13,490 INFO L87 Difference]: Start difference. First operand 5435 states and 14264 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:16,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:16,347 INFO L93 Difference]: Finished difference Result 9985 states and 26237 transitions. [2022-03-03 17:06:16,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:06:16,347 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:16,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:16,361 INFO L225 Difference]: With dead ends: 9985 [2022-03-03 17:06:16,361 INFO L226 Difference]: Without dead ends: 9595 [2022-03-03 17:06:16,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1148, Invalid=3964, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:06:16,362 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 989 mSDsluCounter, 7101 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 7342 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:16,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [989 Valid, 7342 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:06:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9595 states. [2022-03-03 17:06:16,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9595 to 5447. [2022-03-03 17:06:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6230260741828864) internal successors, (14285), 5446 states have internal predecessors, (14285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:16,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14285 transitions. [2022-03-03 17:06:16,476 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14285 transitions. Word has length 135 [2022-03-03 17:06:16,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:16,476 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14285 transitions. [2022-03-03 17:06:16,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:16,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14285 transitions. [2022-03-03 17:06:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:16,481 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:16,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:16,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-03 17:06:16,481 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:16,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:16,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1687092835, now seen corresponding path program 93 times [2022-03-03 17:06:16,482 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:16,482 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913481167] [2022-03-03 17:06:16,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:16,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:16,989 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:16,989 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913481167] [2022-03-03 17:06:16,989 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913481167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:16,989 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:16,989 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:16,989 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253662276] [2022-03-03 17:06:16,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:16,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:16,990 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:16,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:16,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:16,990 INFO L87 Difference]: Start difference. First operand 5447 states and 14285 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:19,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:19,517 INFO L93 Difference]: Finished difference Result 9834 states and 25841 transitions. [2022-03-03 17:06:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:06:19,518 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:19,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:19,531 INFO L225 Difference]: With dead ends: 9834 [2022-03-03 17:06:19,531 INFO L226 Difference]: Without dead ends: 9537 [2022-03-03 17:06:19,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=970, Invalid=3452, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:06:19,532 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 893 mSDsluCounter, 7381 mSDsCounter, 0 mSdLazyCounter, 1485 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 7622 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:19,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 7622 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1485 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:06:19,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9537 states. [2022-03-03 17:06:19,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9537 to 5451. [2022-03-03 17:06:19,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6223853211009174) internal successors, (14292), 5450 states have internal predecessors, (14292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:19,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14292 transitions. [2022-03-03 17:06:19,622 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14292 transitions. Word has length 135 [2022-03-03 17:06:19,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:19,622 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14292 transitions. [2022-03-03 17:06:19,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:19,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14292 transitions. [2022-03-03 17:06:19,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:19,627 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:19,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:19,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-03 17:06:19,627 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:19,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:19,627 INFO L85 PathProgramCache]: Analyzing trace with hash -729484945, now seen corresponding path program 94 times [2022-03-03 17:06:19,627 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:19,627 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531788192] [2022-03-03 17:06:19,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:19,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:20,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:20,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531788192] [2022-03-03 17:06:20,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531788192] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:20,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:20,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:20,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682991918] [2022-03-03 17:06:20,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:20,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:20,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:20,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:20,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:20,068 INFO L87 Difference]: Start difference. First operand 5451 states and 14292 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:22,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:22,324 INFO L93 Difference]: Finished difference Result 9718 states and 25543 transitions. [2022-03-03 17:06:22,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:06:22,324 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:22,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:22,335 INFO L225 Difference]: With dead ends: 9718 [2022-03-03 17:06:22,336 INFO L226 Difference]: Without dead ends: 9452 [2022-03-03 17:06:22,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=792, Invalid=2868, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:06:22,336 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 844 mSDsluCounter, 7225 mSDsCounter, 0 mSdLazyCounter, 1455 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 7474 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:22,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 7474 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1455 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:06:22,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2022-03-03 17:06:22,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 5455. [2022-03-03 17:06:22,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6217455078841216) internal successors, (14299), 5454 states have internal predecessors, (14299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:22,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14299 transitions. [2022-03-03 17:06:22,415 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14299 transitions. Word has length 135 [2022-03-03 17:06:22,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:22,415 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14299 transitions. [2022-03-03 17:06:22,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:22,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14299 transitions. [2022-03-03 17:06:22,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:22,420 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:22,420 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:22,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-03 17:06:22,420 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:22,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:22,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1396633879, now seen corresponding path program 95 times [2022-03-03 17:06:22,434 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:22,434 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131061602] [2022-03-03 17:06:22,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:22,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:22,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:22,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131061602] [2022-03-03 17:06:22,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131061602] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:22,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:22,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:22,883 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145850610] [2022-03-03 17:06:22,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:22,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:22,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:22,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:22,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:22,883 INFO L87 Difference]: Start difference. First operand 5455 states and 14299 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:24,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:24,583 INFO L93 Difference]: Finished difference Result 9656 states and 25377 transitions. [2022-03-03 17:06:24,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:06:24,583 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:24,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:24,597 INFO L225 Difference]: With dead ends: 9656 [2022-03-03 17:06:24,597 INFO L226 Difference]: Without dead ends: 9361 [2022-03-03 17:06:24,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=770, Invalid=2652, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:06:24,598 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 826 mSDsluCounter, 6741 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 7008 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:24,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 7008 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:06:24,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9361 states. [2022-03-03 17:06:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9361 to 5423. [2022-03-03 17:06:24,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 2.6246772408705277) internal successors, (14231), 5422 states have internal predecessors, (14231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 14231 transitions. [2022-03-03 17:06:24,690 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 14231 transitions. Word has length 135 [2022-03-03 17:06:24,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:24,690 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 14231 transitions. [2022-03-03 17:06:24,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 14231 transitions. [2022-03-03 17:06:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:24,695 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:24,696 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:24,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-03 17:06:24,696 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:24,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1414728995, now seen corresponding path program 96 times [2022-03-03 17:06:24,696 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:24,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964696709] [2022-03-03 17:06:24,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:24,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:24,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:24,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:24,964 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:24,964 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964696709] [2022-03-03 17:06:24,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964696709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:24,964 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:24,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:24,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124042081] [2022-03-03 17:06:24,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:24,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:24,964 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:24,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:24,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:24,965 INFO L87 Difference]: Start difference. First operand 5423 states and 14231 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:27,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:27,172 INFO L93 Difference]: Finished difference Result 9823 states and 25696 transitions. [2022-03-03 17:06:27,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:06:27,172 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:27,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:27,184 INFO L225 Difference]: With dead ends: 9823 [2022-03-03 17:06:27,184 INFO L226 Difference]: Without dead ends: 9402 [2022-03-03 17:06:27,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1328, Invalid=4372, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:06:27,185 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1184 mSDsluCounter, 7235 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 7471 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:27,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 7471 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:27,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9402 states. [2022-03-03 17:06:27,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9402 to 5427. [2022-03-03 17:06:27,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 2.6240324364172505) internal successors, (14238), 5426 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:27,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 14238 transitions. [2022-03-03 17:06:27,275 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 14238 transitions. Word has length 135 [2022-03-03 17:06:27,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:27,276 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 14238 transitions. [2022-03-03 17:06:27,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:27,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 14238 transitions. [2022-03-03 17:06:27,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:27,281 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:27,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:27,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-03 17:06:27,282 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:27,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:27,282 INFO L85 PathProgramCache]: Analyzing trace with hash -317508857, now seen corresponding path program 97 times [2022-03-03 17:06:27,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:27,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775748228] [2022-03-03 17:06:27,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:27,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:27,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:27,580 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775748228] [2022-03-03 17:06:27,580 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775748228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:27,580 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:27,580 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:27,581 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849967332] [2022-03-03 17:06:27,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:27,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:27,581 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:27,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:27,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:27,581 INFO L87 Difference]: Start difference. First operand 5427 states and 14238 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:29,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:29,562 INFO L93 Difference]: Finished difference Result 9813 states and 25760 transitions. [2022-03-03 17:06:29,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:06:29,562 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:29,575 INFO L225 Difference]: With dead ends: 9813 [2022-03-03 17:06:29,575 INFO L226 Difference]: Without dead ends: 9423 [2022-03-03 17:06:29,575 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1166, Invalid=4090, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:06:29,576 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 977 mSDsluCounter, 7123 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 7360 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:29,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 7360 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:29,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9423 states. [2022-03-03 17:06:29,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9423 to 5439. [2022-03-03 17:06:29,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.6221037146009563) internal successors, (14259), 5438 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:29,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14259 transitions. [2022-03-03 17:06:29,655 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14259 transitions. Word has length 135 [2022-03-03 17:06:29,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:29,655 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14259 transitions. [2022-03-03 17:06:29,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:29,655 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14259 transitions. [2022-03-03 17:06:29,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:29,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:29,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:29,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-03 17:06:29,661 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:29,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:29,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1462605061, now seen corresponding path program 98 times [2022-03-03 17:06:29,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:29,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424204311] [2022-03-03 17:06:29,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:29,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:29,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:29,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424204311] [2022-03-03 17:06:29,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424204311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:29,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:29,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:29,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032034999] [2022-03-03 17:06:29,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:29,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:29,977 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:29,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:29,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:29,978 INFO L87 Difference]: Start difference. First operand 5439 states and 14259 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:31,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:31,697 INFO L93 Difference]: Finished difference Result 9662 states and 25364 transitions. [2022-03-03 17:06:31,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:06:31,697 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:31,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:31,710 INFO L225 Difference]: With dead ends: 9662 [2022-03-03 17:06:31,710 INFO L226 Difference]: Without dead ends: 9365 [2022-03-03 17:06:31,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=960, Invalid=3462, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:06:31,710 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 893 mSDsluCounter, 7388 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 7627 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:31,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 7627 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:31,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9365 states. [2022-03-03 17:06:31,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9365 to 5443. [2022-03-03 17:06:31,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.62146269753767) internal successors, (14266), 5442 states have internal predecessors, (14266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:31,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14266 transitions. [2022-03-03 17:06:31,795 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14266 transitions. Word has length 135 [2022-03-03 17:06:31,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:31,795 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14266 transitions. [2022-03-03 17:06:31,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:31,795 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14266 transitions. [2022-03-03 17:06:31,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:31,801 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:31,801 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:31,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-03 17:06:31,801 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:31,801 INFO L85 PathProgramCache]: Analyzing trace with hash 415784455, now seen corresponding path program 99 times [2022-03-03 17:06:31,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:31,802 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503122141] [2022-03-03 17:06:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:31,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:32,107 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:32,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503122141] [2022-03-03 17:06:32,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503122141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:32,107 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:32,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:32,107 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175657395] [2022-03-03 17:06:32,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:32,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:32,108 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:32,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:32,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:32,108 INFO L87 Difference]: Start difference. First operand 5443 states and 14266 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:33,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:33,639 INFO L93 Difference]: Finished difference Result 9546 states and 25066 transitions. [2022-03-03 17:06:33,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:06:33,639 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:33,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:33,652 INFO L225 Difference]: With dead ends: 9546 [2022-03-03 17:06:33,652 INFO L226 Difference]: Without dead ends: 9280 [2022-03-03 17:06:33,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=786, Invalid=2874, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:06:33,653 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 853 mSDsluCounter, 6854 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 7109 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:33,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [853 Valid, 7109 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:33,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9280 states. [2022-03-03 17:06:33,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9280 to 5447. [2022-03-03 17:06:33,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.620822622107969) internal successors, (14273), 5446 states have internal predecessors, (14273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:33,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14273 transitions. [2022-03-03 17:06:33,730 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14273 transitions. Word has length 135 [2022-03-03 17:06:33,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:33,730 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14273 transitions. [2022-03-03 17:06:33,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:33,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14273 transitions. [2022-03-03 17:06:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:33,735 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:33,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:33,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-03 17:06:33,735 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:33,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:33,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1753064017, now seen corresponding path program 100 times [2022-03-03 17:06:33,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:33,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097000626] [2022-03-03 17:06:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:33,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:34,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:34,048 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:34,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097000626] [2022-03-03 17:06:34,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097000626] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:34,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:34,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:34,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928505128] [2022-03-03 17:06:34,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:34,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:34,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:34,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:34,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:34,049 INFO L87 Difference]: Start difference. First operand 5447 states and 14273 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:35,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:35,458 INFO L93 Difference]: Finished difference Result 9484 states and 24900 transitions. [2022-03-03 17:06:35,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:06:35,458 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:35,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:35,472 INFO L225 Difference]: With dead ends: 9484 [2022-03-03 17:06:35,472 INFO L226 Difference]: Without dead ends: 9193 [2022-03-03 17:06:35,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=745, Invalid=2561, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:06:35,472 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 830 mSDsluCounter, 6721 mSDsCounter, 0 mSdLazyCounter, 1296 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 6984 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:35,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [830 Valid, 6984 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:06:35,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9193 states. [2022-03-03 17:06:35,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9193 to 5419. [2022-03-03 17:06:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 2.6245847176079735) internal successors, (14220), 5418 states have internal predecessors, (14220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 14220 transitions. [2022-03-03 17:06:35,567 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 14220 transitions. Word has length 135 [2022-03-03 17:06:35,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:35,567 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 14220 transitions. [2022-03-03 17:06:35,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:35,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 14220 transitions. [2022-03-03 17:06:35,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:35,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:35,573 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:35,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-03 17:06:35,573 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:35,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:35,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1841021743, now seen corresponding path program 101 times [2022-03-03 17:06:35,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:35,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676745863] [2022-03-03 17:06:35,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:35,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:35,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:35,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:35,891 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:35,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676745863] [2022-03-03 17:06:35,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676745863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:35,891 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:35,891 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:35,891 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867915082] [2022-03-03 17:06:35,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:35,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:35,891 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:35,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:35,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:35,892 INFO L87 Difference]: Start difference. First operand 5419 states and 14220 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:37,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:37,647 INFO L93 Difference]: Finished difference Result 9636 states and 25322 transitions. [2022-03-03 17:06:37,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:06:37,647 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:37,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:37,659 INFO L225 Difference]: With dead ends: 9636 [2022-03-03 17:06:37,660 INFO L226 Difference]: Without dead ends: 9345 [2022-03-03 17:06:37,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=966, Invalid=3194, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:06:37,660 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 926 mSDsluCounter, 6733 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 6998 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:37,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 6998 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9345 states. [2022-03-03 17:06:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9345 to 5475. [2022-03-03 17:06:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6251370113262698) internal successors, (14370), 5474 states have internal predecessors, (14370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14370 transitions. [2022-03-03 17:06:37,772 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14370 transitions. Word has length 135 [2022-03-03 17:06:37,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:37,772 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14370 transitions. [2022-03-03 17:06:37,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14370 transitions. [2022-03-03 17:06:37,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:37,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:37,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:37,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-03 17:06:37,777 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:37,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:37,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2132727771, now seen corresponding path program 102 times [2022-03-03 17:06:37,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:37,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513477473] [2022-03-03 17:06:37,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:37,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:38,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:38,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:38,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513477473] [2022-03-03 17:06:38,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513477473] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:38,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:38,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:38,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047666810] [2022-03-03 17:06:38,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:38,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:38,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:38,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:38,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:38,035 INFO L87 Difference]: Start difference. First operand 5475 states and 14370 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:39,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:39,521 INFO L93 Difference]: Finished difference Result 9586 states and 25192 transitions. [2022-03-03 17:06:39,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:06:39,521 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:39,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:39,535 INFO L225 Difference]: With dead ends: 9586 [2022-03-03 17:06:39,535 INFO L226 Difference]: Without dead ends: 9320 [2022-03-03 17:06:39,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=772, Invalid=2768, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:06:39,537 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 872 mSDsluCounter, 6760 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 7010 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:39,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [872 Valid, 7010 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1400 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:39,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9320 states. [2022-03-03 17:06:39,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9320 to 5479. [2022-03-03 17:06:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6244979919678717) internal successors, (14377), 5478 states have internal predecessors, (14377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:39,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14377 transitions. [2022-03-03 17:06:39,634 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14377 transitions. Word has length 135 [2022-03-03 17:06:39,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:39,634 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14377 transitions. [2022-03-03 17:06:39,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:39,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14377 transitions. [2022-03-03 17:06:39,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:39,640 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:39,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:39,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-03 17:06:39,640 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:39,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash -6608947, now seen corresponding path program 103 times [2022-03-03 17:06:39,640 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:39,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024873391] [2022-03-03 17:06:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:39,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:39,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:39,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:39,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024873391] [2022-03-03 17:06:39,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024873391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:39,945 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:39,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:39,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595714932] [2022-03-03 17:06:39,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:39,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:39,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:39,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:39,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:39,946 INFO L87 Difference]: Start difference. First operand 5479 states and 14377 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:41,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:41,560 INFO L93 Difference]: Finished difference Result 9548 states and 25092 transitions. [2022-03-03 17:06:41,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:06:41,560 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:41,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:41,574 INFO L225 Difference]: With dead ends: 9548 [2022-03-03 17:06:41,574 INFO L226 Difference]: Without dead ends: 9277 [2022-03-03 17:06:41,574 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=823, Invalid=2837, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:06:41,575 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 846 mSDsluCounter, 7067 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 7325 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:41,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [846 Valid, 7325 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:41,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2022-03-03 17:06:41,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 5471. [2022-03-03 17:06:41,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 2.6250457038391226) internal successors, (14359), 5470 states have internal predecessors, (14359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:41,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 14359 transitions. [2022-03-03 17:06:41,707 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 14359 transitions. Word has length 135 [2022-03-03 17:06:41,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:41,707 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 14359 transitions. [2022-03-03 17:06:41,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:41,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 14359 transitions. [2022-03-03 17:06:41,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:41,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:41,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:41,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-03 17:06:41,713 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:41,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:41,713 INFO L85 PathProgramCache]: Analyzing trace with hash 366171219, now seen corresponding path program 104 times [2022-03-03 17:06:41,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:41,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659872780] [2022-03-03 17:06:41,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:41,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:41,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:41,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:41,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659872780] [2022-03-03 17:06:41,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659872780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:41,993 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:41,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:41,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367255026] [2022-03-03 17:06:41,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:41,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:41,994 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:41,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:41,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:41,994 INFO L87 Difference]: Start difference. First operand 5471 states and 14359 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:43,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:43,712 INFO L93 Difference]: Finished difference Result 9718 states and 25530 transitions. [2022-03-03 17:06:43,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:06:43,712 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:43,727 INFO L225 Difference]: With dead ends: 9718 [2022-03-03 17:06:43,727 INFO L226 Difference]: Without dead ends: 9421 [2022-03-03 17:06:43,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=956, Invalid=3334, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:06:43,728 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 939 mSDsluCounter, 6879 mSDsCounter, 0 mSdLazyCounter, 1410 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 7119 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:43,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [939 Valid, 7119 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:43,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9421 states. [2022-03-03 17:06:43,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9421 to 5475. [2022-03-03 17:06:43,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6244062842528315) internal successors, (14366), 5474 states have internal predecessors, (14366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14366 transitions. [2022-03-03 17:06:43,819 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14366 transitions. Word has length 135 [2022-03-03 17:06:43,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:43,819 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14366 transitions. [2022-03-03 17:06:43,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:43,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14366 transitions. [2022-03-03 17:06:43,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:43,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:43,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:43,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-03 17:06:43,825 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:43,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:43,825 INFO L85 PathProgramCache]: Analyzing trace with hash -2050406561, now seen corresponding path program 105 times [2022-03-03 17:06:43,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:43,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854305869] [2022-03-03 17:06:43,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:43,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:43,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:44,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:44,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854305869] [2022-03-03 17:06:44,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854305869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:44,126 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:44,126 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:44,126 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98265609] [2022-03-03 17:06:44,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:44,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:44,126 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:44,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:44,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:44,127 INFO L87 Difference]: Start difference. First operand 5475 states and 14366 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:45,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:45,712 INFO L93 Difference]: Finished difference Result 9602 states and 25232 transitions. [2022-03-03 17:06:45,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:06:45,712 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:45,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:45,723 INFO L225 Difference]: With dead ends: 9602 [2022-03-03 17:06:45,723 INFO L226 Difference]: Without dead ends: 9336 [2022-03-03 17:06:45,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=802, Invalid=2858, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:06:45,723 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 879 mSDsluCounter, 6767 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 7018 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:45,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 7018 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:45,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9336 states. [2022-03-03 17:06:45,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9336 to 5479. [2022-03-03 17:06:45,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6237677984665937) internal successors, (14373), 5478 states have internal predecessors, (14373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:45,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14373 transitions. [2022-03-03 17:06:45,800 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14373 transitions. Word has length 135 [2022-03-03 17:06:45,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:45,801 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14373 transitions. [2022-03-03 17:06:45,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:45,801 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14373 transitions. [2022-03-03 17:06:45,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:45,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:45,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:45,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-03 17:06:45,806 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:45,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:45,807 INFO L85 PathProgramCache]: Analyzing trace with hash 75712263, now seen corresponding path program 106 times [2022-03-03 17:06:45,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:45,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828595574] [2022-03-03 17:06:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:45,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:46,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:46,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:46,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828595574] [2022-03-03 17:06:46,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828595574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:46,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:46,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:46,073 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869584988] [2022-03-03 17:06:46,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:46,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:46,074 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:46,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:46,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:46,074 INFO L87 Difference]: Start difference. First operand 5479 states and 14373 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:47,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:47,600 INFO L93 Difference]: Finished difference Result 9548 states and 25088 transitions. [2022-03-03 17:06:47,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:06:47,601 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:47,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:47,613 INFO L225 Difference]: With dead ends: 9548 [2022-03-03 17:06:47,613 INFO L226 Difference]: Without dead ends: 9273 [2022-03-03 17:06:47,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=794, Invalid=2746, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:06:47,614 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 852 mSDsluCounter, 7043 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 7298 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:47,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [852 Valid, 7298 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:47,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9273 states. [2022-03-03 17:06:47,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9273 to 5467. [2022-03-03 17:06:47,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.624954262714965) internal successors, (14348), 5466 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:47,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14348 transitions. [2022-03-03 17:06:47,700 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14348 transitions. Word has length 135 [2022-03-03 17:06:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:47,700 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14348 transitions. [2022-03-03 17:06:47,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14348 transitions. [2022-03-03 17:06:47,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:47,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:47,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:47,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-03 17:06:47,706 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:47,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash -543593789, now seen corresponding path program 107 times [2022-03-03 17:06:47,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:47,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219369331] [2022-03-03 17:06:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:47,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:47,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:47,976 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:47,976 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219369331] [2022-03-03 17:06:47,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219369331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:47,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:47,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:47,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486953383] [2022-03-03 17:06:47,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:47,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:47,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:47,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:47,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:47,977 INFO L87 Difference]: Start difference. First operand 5467 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:49,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:49,989 INFO L93 Difference]: Finished difference Result 9625 states and 25243 transitions. [2022-03-03 17:06:49,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 17:06:49,990 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:49,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:50,002 INFO L225 Difference]: With dead ends: 9625 [2022-03-03 17:06:50,002 INFO L226 Difference]: Without dead ends: 9235 [2022-03-03 17:06:50,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 716 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1130, Invalid=3840, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 17:06:50,003 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1000 mSDsluCounter, 6996 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 7228 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:50,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1000 Valid, 7228 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:50,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9235 states. [2022-03-03 17:06:50,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9235 to 5479. [2022-03-03 17:06:50,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6230376049653157) internal successors, (14369), 5478 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:50,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14369 transitions. [2022-03-03 17:06:50,086 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14369 transitions. Word has length 135 [2022-03-03 17:06:50,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:50,086 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14369 transitions. [2022-03-03 17:06:50,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:50,086 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14369 transitions. [2022-03-03 17:06:50,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:50,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:50,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:50,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-03 17:06:50,092 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:50,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash -937058825, now seen corresponding path program 108 times [2022-03-03 17:06:50,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:50,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088081080] [2022-03-03 17:06:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:50,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:50,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:50,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:50,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088081080] [2022-03-03 17:06:50,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088081080] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:50,349 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:50,349 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:50,349 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370024052] [2022-03-03 17:06:50,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:50,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:50,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:50,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:50,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:50,349 INFO L87 Difference]: Start difference. First operand 5479 states and 14369 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:52,105 INFO L93 Difference]: Finished difference Result 9586 states and 25155 transitions. [2022-03-03 17:06:52,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:06:52,106 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:52,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:52,119 INFO L225 Difference]: With dead ends: 9586 [2022-03-03 17:06:52,119 INFO L226 Difference]: Without dead ends: 9289 [2022-03-03 17:06:52,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 577 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=980, Invalid=3442, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:06:52,120 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 949 mSDsluCounter, 6855 mSDsCounter, 0 mSdLazyCounter, 1402 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 7092 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:52,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [949 Valid, 7092 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:52,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9289 states. [2022-03-03 17:06:52,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9289 to 5483. [2022-03-03 17:06:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.622400583728566) internal successors, (14376), 5482 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:52,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14376 transitions. [2022-03-03 17:06:52,194 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14376 transitions. Word has length 135 [2022-03-03 17:06:52,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:52,194 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14376 transitions. [2022-03-03 17:06:52,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:52,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14376 transitions. [2022-03-03 17:06:52,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:52,199 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:52,199 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:52,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-03 17:06:52,199 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:52,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash 941330691, now seen corresponding path program 109 times [2022-03-03 17:06:52,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:52,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257076387] [2022-03-03 17:06:52,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:52,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:52,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:52,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:52,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257076387] [2022-03-03 17:06:52,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257076387] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:52,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:52,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:52,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579553976] [2022-03-03 17:06:52,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:52,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:52,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:52,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:52,496 INFO L87 Difference]: Start difference. First operand 5483 states and 14376 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:54,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:54,074 INFO L93 Difference]: Finished difference Result 9470 states and 24857 transitions. [2022-03-03 17:06:54,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:06:54,074 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:54,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:54,084 INFO L225 Difference]: With dead ends: 9470 [2022-03-03 17:06:54,084 INFO L226 Difference]: Without dead ends: 9204 [2022-03-03 17:06:54,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=796, Invalid=2864, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:06:54,085 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 885 mSDsluCounter, 6751 mSDsCounter, 0 mSdLazyCounter, 1392 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 6999 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:54,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [885 Valid, 6999 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1392 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:54,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9204 states. [2022-03-03 17:06:54,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9204 to 5487. [2022-03-03 17:06:54,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.621764491432738) internal successors, (14383), 5486 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14383 transitions. [2022-03-03 17:06:54,163 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14383 transitions. Word has length 135 [2022-03-03 17:06:54,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:54,163 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14383 transitions. [2022-03-03 17:06:54,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:54,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14383 transitions. [2022-03-03 17:06:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:54,169 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:54,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:54,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-03 17:06:54,169 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:54,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:54,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1227517781, now seen corresponding path program 110 times [2022-03-03 17:06:54,170 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:54,170 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781772231] [2022-03-03 17:06:54,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:54,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:54,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:54,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:54,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781772231] [2022-03-03 17:06:54,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781772231] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:54,432 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:54,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:54,432 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403580988] [2022-03-03 17:06:54,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:54,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:54,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:54,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:54,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:54,433 INFO L87 Difference]: Start difference. First operand 5487 states and 14383 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:55,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:55,898 INFO L93 Difference]: Finished difference Result 9416 states and 24713 transitions. [2022-03-03 17:06:55,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:06:55,898 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:55,911 INFO L225 Difference]: With dead ends: 9416 [2022-03-03 17:06:55,911 INFO L226 Difference]: Without dead ends: 9121 [2022-03-03 17:06:55,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=766, Invalid=2656, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:06:55,912 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 851 mSDsluCounter, 7018 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 7269 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:55,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [851 Valid, 7269 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:55,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9121 states. [2022-03-03 17:06:55,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9121 to 5455. [2022-03-03 17:06:55,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6232123212321232) internal successors, (14307), 5454 states have internal predecessors, (14307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:55,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14307 transitions. [2022-03-03 17:06:55,983 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14307 transitions. Word has length 135 [2022-03-03 17:06:55,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:55,983 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14307 transitions. [2022-03-03 17:06:55,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14307 transitions. [2022-03-03 17:06:55,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:55,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:55,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:55,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-03 17:06:55,988 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:55,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:55,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2072443783, now seen corresponding path program 111 times [2022-03-03 17:06:55,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:55,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092135340] [2022-03-03 17:06:55,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:55,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:56,274 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:56,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092135340] [2022-03-03 17:06:56,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092135340] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:56,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:56,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:56,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109799785] [2022-03-03 17:06:56,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:56,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:56,274 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:56,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:56,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:56,274 INFO L87 Difference]: Start difference. First operand 5455 states and 14307 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:58,046 INFO L93 Difference]: Finished difference Result 9544 states and 25057 transitions. [2022-03-03 17:06:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:06:58,046 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:58,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:58,057 INFO L225 Difference]: With dead ends: 9544 [2022-03-03 17:06:58,057 INFO L226 Difference]: Without dead ends: 9253 [2022-03-03 17:06:58,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=990, Invalid=3300, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:06:58,057 INFO L933 BasicCegarLoop]: 374 mSDtfsCounter, 1002 mSDsluCounter, 6689 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 6949 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:58,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1002 Valid, 6949 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:58,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9253 states. [2022-03-03 17:06:58,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9253 to 5475. [2022-03-03 17:06:58,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6229448301059555) internal successors, (14358), 5474 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:58,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14358 transitions. [2022-03-03 17:06:58,124 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14358 transitions. Word has length 135 [2022-03-03 17:06:58,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:06:58,124 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14358 transitions. [2022-03-03 17:06:58,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:58,124 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14358 transitions. [2022-03-03 17:06:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:06:58,129 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:06:58,129 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:06:58,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-03 17:06:58,129 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:06:58,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:06:58,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1930817485, now seen corresponding path program 112 times [2022-03-03 17:06:58,129 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:06:58,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74476352] [2022-03-03 17:06:58,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:06:58,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:06:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:06:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:06:58,434 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:06:58,434 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74476352] [2022-03-03 17:06:58,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74476352] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:06:58,434 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:06:58,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:06:58,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460111204] [2022-03-03 17:06:58,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:06:58,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:06:58,434 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:06:58,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:06:58,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:06:58,441 INFO L87 Difference]: Start difference. First operand 5475 states and 14358 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:06:59,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:06:59,927 INFO L93 Difference]: Finished difference Result 9462 states and 24839 transitions. [2022-03-03 17:06:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:06:59,927 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:06:59,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:06:59,939 INFO L225 Difference]: With dead ends: 9462 [2022-03-03 17:06:59,939 INFO L226 Difference]: Without dead ends: 9196 [2022-03-03 17:06:59,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=777, Invalid=2763, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:06:59,940 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 888 mSDsluCounter, 7063 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 7297 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:06:59,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [888 Valid, 7297 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:06:59,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9196 states. [2022-03-03 17:07:00,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9196 to 5479. [2022-03-03 17:07:00,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.622307411464038) internal successors, (14365), 5478 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:00,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14365 transitions. [2022-03-03 17:07:00,015 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14365 transitions. Word has length 135 [2022-03-03 17:07:00,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:00,023 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14365 transitions. [2022-03-03 17:07:00,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:00,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14365 transitions. [2022-03-03 17:07:00,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:00,029 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:00,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:00,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-03 17:07:00,029 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:00,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash -238030987, now seen corresponding path program 113 times [2022-03-03 17:07:00,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:00,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728790933] [2022-03-03 17:07:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:00,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:00,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:00,285 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:00,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728790933] [2022-03-03 17:07:00,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728790933] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:00,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:00,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:00,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901357501] [2022-03-03 17:07:00,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:00,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:00,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:00,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:00,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:00,285 INFO L87 Difference]: Start difference. First operand 5479 states and 14365 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:01,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:01,853 INFO L93 Difference]: Finished difference Result 9424 states and 24739 transitions. [2022-03-03 17:07:01,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:07:01,853 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:01,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:01,863 INFO L225 Difference]: With dead ends: 9424 [2022-03-03 17:07:01,864 INFO L226 Difference]: Without dead ends: 9153 [2022-03-03 17:07:01,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=819, Invalid=2841, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:07:01,864 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 888 mSDsluCounter, 6642 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 6901 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:01,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [888 Valid, 6901 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:01,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9153 states. [2022-03-03 17:07:01,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9153 to 5471. [2022-03-03 17:07:01,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 2.622851919561243) internal successors, (14347), 5470 states have internal predecessors, (14347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:01,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 14347 transitions. [2022-03-03 17:07:01,938 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 14347 transitions. Word has length 135 [2022-03-03 17:07:01,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:01,938 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 14347 transitions. [2022-03-03 17:07:01,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:01,938 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 14347 transitions. [2022-03-03 17:07:01,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:01,943 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:01,943 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:01,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-03 17:07:01,944 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash 134749179, now seen corresponding path program 114 times [2022-03-03 17:07:01,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:01,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205574737] [2022-03-03 17:07:01,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:01,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:01,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:02,275 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:02,275 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205574737] [2022-03-03 17:07:02,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205574737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:02,275 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:02,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:02,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173931123] [2022-03-03 17:07:02,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:02,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:02,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:02,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:02,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:02,276 INFO L87 Difference]: Start difference. First operand 5471 states and 14347 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:03,993 INFO L93 Difference]: Finished difference Result 9462 states and 24814 transitions. [2022-03-03 17:07:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:07:03,993 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:03,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:04,005 INFO L225 Difference]: With dead ends: 9462 [2022-03-03 17:07:04,005 INFO L226 Difference]: Without dead ends: 9165 [2022-03-03 17:07:04,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=932, Invalid=3228, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:07:04,006 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 963 mSDsluCounter, 6805 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 7037 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:04,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [963 Valid, 7037 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9165 states. [2022-03-03 17:07:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9165 to 5475. [2022-03-03 17:07:04,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6222141030325172) internal successors, (14354), 5474 states have internal predecessors, (14354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:04,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14354 transitions. [2022-03-03 17:07:04,080 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14354 transitions. Word has length 135 [2022-03-03 17:07:04,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:04,080 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14354 transitions. [2022-03-03 17:07:04,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:04,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14354 transitions. [2022-03-03 17:07:04,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:04,085 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:04,085 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:04,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-03 17:07:04,086 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:04,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:04,086 INFO L85 PathProgramCache]: Analyzing trace with hash 2013138695, now seen corresponding path program 115 times [2022-03-03 17:07:04,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:04,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164008601] [2022-03-03 17:07:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:04,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:04,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:04,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:04,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164008601] [2022-03-03 17:07:04,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164008601] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:04,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:04,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:04,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104062649] [2022-03-03 17:07:04,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:04,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:04,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:04,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:04,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:04,344 INFO L87 Difference]: Start difference. First operand 5475 states and 14354 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:05,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:05,869 INFO L93 Difference]: Finished difference Result 9410 states and 24692 transitions. [2022-03-03 17:07:05,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:07:05,869 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:05,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:05,880 INFO L225 Difference]: With dead ends: 9410 [2022-03-03 17:07:05,881 INFO L226 Difference]: Without dead ends: 9144 [2022-03-03 17:07:05,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=807, Invalid=2853, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:07:05,881 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 946 mSDsluCounter, 6670 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 6909 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:05,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 6909 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:05,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9144 states. [2022-03-03 17:07:05,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9144 to 5479. [2022-03-03 17:07:05,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.62157721796276) internal successors, (14361), 5478 states have internal predecessors, (14361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:05,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14361 transitions. [2022-03-03 17:07:05,955 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14361 transitions. Word has length 135 [2022-03-03 17:07:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:05,955 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14361 transitions. [2022-03-03 17:07:05,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14361 transitions. [2022-03-03 17:07:05,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:05,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:05,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:05,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-03 17:07:05,961 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:05,961 INFO L85 PathProgramCache]: Analyzing trace with hash -155709777, now seen corresponding path program 116 times [2022-03-03 17:07:05,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:05,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123856017] [2022-03-03 17:07:05,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:05,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:06,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:06,215 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:06,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123856017] [2022-03-03 17:07:06,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123856017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:06,215 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:06,215 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:06,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643152866] [2022-03-03 17:07:06,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:06,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:06,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:06,215 INFO L87 Difference]: Start difference. First operand 5479 states and 14361 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:07,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:07,687 INFO L93 Difference]: Finished difference Result 9372 states and 24592 transitions. [2022-03-03 17:07:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:07:07,687 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:07,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:07,699 INFO L225 Difference]: With dead ends: 9372 [2022-03-03 17:07:07,699 INFO L226 Difference]: Without dead ends: 9097 [2022-03-03 17:07:07,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=789, Invalid=2751, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:07:07,700 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 908 mSDsluCounter, 6612 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 6866 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:07,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 6866 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:07:07,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9097 states. [2022-03-03 17:07:07,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9097 to 5467. [2022-03-03 17:07:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.622758873033297) internal successors, (14336), 5466 states have internal predecessors, (14336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:07,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14336 transitions. [2022-03-03 17:07:07,782 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14336 transitions. Word has length 135 [2022-03-03 17:07:07,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:07,782 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14336 transitions. [2022-03-03 17:07:07,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:07,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14336 transitions. [2022-03-03 17:07:07,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:07,788 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:07,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:07,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-03 17:07:07,788 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:07,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:07,788 INFO L85 PathProgramCache]: Analyzing trace with hash 110345745, now seen corresponding path program 117 times [2022-03-03 17:07:07,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:07,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551241919] [2022-03-03 17:07:07,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:07,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:08,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:08,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:08,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551241919] [2022-03-03 17:07:08,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551241919] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:08,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:08,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:08,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289415643] [2022-03-03 17:07:08,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:08,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:08,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:08,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:08,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:08,051 INFO L87 Difference]: Start difference. First operand 5467 states and 14336 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:09,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:09,861 INFO L93 Difference]: Finished difference Result 9500 states and 24932 transitions. [2022-03-03 17:07:09,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:07:09,861 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:09,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:09,872 INFO L225 Difference]: With dead ends: 9500 [2022-03-03 17:07:09,872 INFO L226 Difference]: Without dead ends: 9209 [2022-03-03 17:07:09,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1014, Invalid=3408, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:07:09,873 INFO L933 BasicCegarLoop]: 370 mSDtfsCounter, 1072 mSDsluCounter, 6667 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 6923 SdHoareTripleChecker+Invalid, 1305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:09,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1072 Valid, 6923 Invalid, 1305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:09,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9209 states. [2022-03-03 17:07:09,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9209 to 5483. [2022-03-03 17:07:09,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.622400583728566) internal successors, (14376), 5482 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:09,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14376 transitions. [2022-03-03 17:07:09,946 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14376 transitions. Word has length 135 [2022-03-03 17:07:09,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:09,946 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14376 transitions. [2022-03-03 17:07:09,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14376 transitions. [2022-03-03 17:07:09,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:09,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:09,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:09,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-03 17:07:09,951 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:09,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:09,951 INFO L85 PathProgramCache]: Analyzing trace with hash -181360283, now seen corresponding path program 118 times [2022-03-03 17:07:09,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:09,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009157706] [2022-03-03 17:07:09,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:09,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:09,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:10,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:10,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009157706] [2022-03-03 17:07:10,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009157706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:10,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:10,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:10,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607301189] [2022-03-03 17:07:10,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:10,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:10,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:10,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:10,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:10,242 INFO L87 Difference]: Start difference. First operand 5483 states and 14376 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:11,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:11,693 INFO L93 Difference]: Finished difference Result 9362 states and 24560 transitions. [2022-03-03 17:07:11,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:07:11,693 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:11,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:11,705 INFO L225 Difference]: With dead ends: 9362 [2022-03-03 17:07:11,705 INFO L226 Difference]: Without dead ends: 9096 [2022-03-03 17:07:11,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=749, Invalid=2673, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:07:11,706 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 955 mSDsluCounter, 6635 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 6869 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:11,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [955 Valid, 6869 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:11,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9096 states. [2022-03-03 17:07:11,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9096 to 5487. [2022-03-03 17:07:11,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.621764491432738) internal successors, (14383), 5486 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:11,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14383 transitions. [2022-03-03 17:07:11,778 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14383 transitions. Word has length 135 [2022-03-03 17:07:11,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:11,778 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14383 transitions. [2022-03-03 17:07:11,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:11,778 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14383 transitions. [2022-03-03 17:07:11,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:11,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:11,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:11,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-03 17:07:11,783 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:11,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1944758541, now seen corresponding path program 119 times [2022-03-03 17:07:11,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:11,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436658324] [2022-03-03 17:07:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:11,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:12,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:12,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:12,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436658324] [2022-03-03 17:07:12,049 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436658324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:12,049 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:12,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:12,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310983072] [2022-03-03 17:07:12,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:12,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:12,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:12,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:12,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:12,051 INFO L87 Difference]: Start difference. First operand 5487 states and 14383 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:13,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:13,556 INFO L93 Difference]: Finished difference Result 9344 states and 24515 transitions. [2022-03-03 17:07:13,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:07:13,556 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:13,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:13,569 INFO L225 Difference]: With dead ends: 9344 [2022-03-03 17:07:13,569 INFO L226 Difference]: Without dead ends: 9073 [2022-03-03 17:07:13,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=814, Invalid=2846, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:07:13,570 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 960 mSDsluCounter, 6589 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 6834 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:13,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 6834 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:13,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9073 states. [2022-03-03 17:07:13,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9073 to 5479. [2022-03-03 17:07:13,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.622307411464038) internal successors, (14365), 5478 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:13,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14365 transitions. [2022-03-03 17:07:13,652 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14365 transitions. Word has length 135 [2022-03-03 17:07:13,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:13,652 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14365 transitions. [2022-03-03 17:07:13,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:13,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14365 transitions. [2022-03-03 17:07:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:13,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:13,657 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] [2022-03-03 17:07:13,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-03 17:07:13,657 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:13,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:13,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1192169173, now seen corresponding path program 120 times [2022-03-03 17:07:13,658 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:13,659 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135924350] [2022-03-03 17:07:13,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:13,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:13,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:13,917 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:13,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135924350] [2022-03-03 17:07:13,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135924350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:13,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:13,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:13,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138565550] [2022-03-03 17:07:13,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:13,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:13,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:13,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:13,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:13,918 INFO L87 Difference]: Start difference. First operand 5479 states and 14365 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:15,998 INFO L93 Difference]: Finished difference Result 9196 states and 24132 transitions. [2022-03-03 17:07:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 17:07:15,998 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:15,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:16,010 INFO L225 Difference]: With dead ends: 9196 [2022-03-03 17:07:16,010 INFO L226 Difference]: Without dead ends: 8545 [2022-03-03 17:07:16,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1148, Invalid=3682, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 17:07:16,011 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 985 mSDsluCounter, 6637 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 6888 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:16,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [985 Valid, 6888 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:16,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8545 states. [2022-03-03 17:07:16,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8545 to 5203. [2022-03-03 17:07:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5203 states, 5202 states have (on average 2.6309111880046134) internal successors, (13686), 5202 states have internal predecessors, (13686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:16,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 5203 states and 13686 transitions. [2022-03-03 17:07:16,091 INFO L78 Accepts]: Start accepts. Automaton has 5203 states and 13686 transitions. Word has length 135 [2022-03-03 17:07:16,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:16,091 INFO L470 AbstractCegarLoop]: Abstraction has 5203 states and 13686 transitions. [2022-03-03 17:07:16,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:16,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5203 states and 13686 transitions. [2022-03-03 17:07:16,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:16,114 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:16,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:16,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-03 17:07:16,114 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:16,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:16,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1597839895, now seen corresponding path program 121 times [2022-03-03 17:07:16,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:16,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139110253] [2022-03-03 17:07:16,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:16,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:16,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:16,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:16,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139110253] [2022-03-03 17:07:16,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139110253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:16,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:16,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:16,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786593078] [2022-03-03 17:07:16,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:16,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:16,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:16,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:16,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:16,358 INFO L87 Difference]: Start difference. First operand 5203 states and 13686 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:18,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:18,939 INFO L93 Difference]: Finished difference Result 11746 states and 30904 transitions. [2022-03-03 17:07:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 17:07:18,939 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:18,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:18,954 INFO L225 Difference]: With dead ends: 11746 [2022-03-03 17:07:18,955 INFO L226 Difference]: Without dead ends: 11371 [2022-03-03 17:07:18,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1186, Invalid=3644, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 17:07:18,956 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1179 mSDsluCounter, 7719 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 7974 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:18,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1179 Valid, 7974 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:07:18,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11371 states. [2022-03-03 17:07:19,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11371 to 5487. [2022-03-03 17:07:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.63488880787459) internal successors, (14455), 5486 states have internal predecessors, (14455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:19,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14455 transitions. [2022-03-03 17:07:19,063 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14455 transitions. Word has length 135 [2022-03-03 17:07:19,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:19,063 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14455 transitions. [2022-03-03 17:07:19,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:19,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14455 transitions. [2022-03-03 17:07:19,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:19,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:19,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:19,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-03 17:07:19,069 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:19,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:19,069 INFO L85 PathProgramCache]: Analyzing trace with hash 196167733, now seen corresponding path program 122 times [2022-03-03 17:07:19,069 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:19,069 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930759048] [2022-03-03 17:07:19,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:19,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:19,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:19,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930759048] [2022-03-03 17:07:19,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930759048] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:19,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:19,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:19,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31067347] [2022-03-03 17:07:19,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:19,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:19,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:19,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:19,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:19,467 INFO L87 Difference]: Start difference. First operand 5487 states and 14455 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:22,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:22,126 INFO L93 Difference]: Finished difference Result 11794 states and 31020 transitions. [2022-03-03 17:07:22,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:07:22,127 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:22,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:22,142 INFO L225 Difference]: With dead ends: 11794 [2022-03-03 17:07:22,142 INFO L226 Difference]: Without dead ends: 11503 [2022-03-03 17:07:22,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1050, Invalid=3372, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:07:22,143 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1170 mSDsluCounter, 6913 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 7184 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:22,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1170 Valid, 7184 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:07:22,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11503 states. [2022-03-03 17:07:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11503 to 5491. [2022-03-03 17:07:22,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6342440801457196) internal successors, (14462), 5490 states have internal predecessors, (14462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:22,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14462 transitions. [2022-03-03 17:07:22,244 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14462 transitions. Word has length 135 [2022-03-03 17:07:22,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:22,244 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14462 transitions. [2022-03-03 17:07:22,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14462 transitions. [2022-03-03 17:07:22,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:22,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:22,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:22,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-03 17:07:22,250 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:22,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:22,250 INFO L85 PathProgramCache]: Analyzing trace with hash -95538295, now seen corresponding path program 123 times [2022-03-03 17:07:22,250 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:22,250 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8211654] [2022-03-03 17:07:22,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:22,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:22,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:22,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8211654] [2022-03-03 17:07:22,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8211654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:22,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:22,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:22,621 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997462686] [2022-03-03 17:07:22,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:22,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:22,621 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:22,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:22,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:22,621 INFO L87 Difference]: Start difference. First operand 5491 states and 14462 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:24,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:24,380 INFO L93 Difference]: Finished difference Result 11680 states and 30714 transitions. [2022-03-03 17:07:24,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:07:24,381 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:24,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:24,397 INFO L225 Difference]: With dead ends: 11680 [2022-03-03 17:07:24,397 INFO L226 Difference]: Without dead ends: 11414 [2022-03-03 17:07:24,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=795, Invalid=2627, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:07:24,397 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1110 mSDsluCounter, 6188 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 6458 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:24,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 6458 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:07:24,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11414 states. [2022-03-03 17:07:24,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11414 to 5495. [2022-03-03 17:07:24,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.633600291226793) internal successors, (14469), 5494 states have internal predecessors, (14469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:24,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14469 transitions. [2022-03-03 17:07:24,487 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14469 transitions. Word has length 135 [2022-03-03 17:07:24,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:24,487 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14469 transitions. [2022-03-03 17:07:24,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:24,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14469 transitions. [2022-03-03 17:07:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:24,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:24,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:24,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-03 17:07:24,493 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:24,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:24,493 INFO L85 PathProgramCache]: Analyzing trace with hash 2030580529, now seen corresponding path program 124 times [2022-03-03 17:07:24,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:24,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510053290] [2022-03-03 17:07:24,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:24,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:24,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:24,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:24,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:24,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510053290] [2022-03-03 17:07:24,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510053290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:24,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:24,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:24,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033097590] [2022-03-03 17:07:24,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:24,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:24,753 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:24,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:24,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:24,753 INFO L87 Difference]: Start difference. First operand 5495 states and 14469 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:26,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:26,406 INFO L93 Difference]: Finished difference Result 11642 states and 30614 transitions. [2022-03-03 17:07:26,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:07:26,407 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:26,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:26,419 INFO L225 Difference]: With dead ends: 11642 [2022-03-03 17:07:26,419 INFO L226 Difference]: Without dead ends: 11359 [2022-03-03 17:07:26,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=850, Invalid=2810, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:07:26,420 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1089 mSDsluCounter, 6893 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 7165 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:26,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1089 Valid, 7165 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:26,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2022-03-03 17:07:26,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5475. [2022-03-03 17:07:26,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6346364632809647) internal successors, (14422), 5474 states have internal predecessors, (14422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14422 transitions. [2022-03-03 17:07:26,496 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14422 transitions. Word has length 135 [2022-03-03 17:07:26,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:26,496 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14422 transitions. [2022-03-03 17:07:26,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14422 transitions. [2022-03-03 17:07:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:26,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:26,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:26,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-03 17:07:26,501 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:26,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:26,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1301613335, now seen corresponding path program 125 times [2022-03-03 17:07:26,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:26,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382915229] [2022-03-03 17:07:26,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:26,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:26,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:26,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382915229] [2022-03-03 17:07:26,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382915229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:26,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:26,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:26,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491405816] [2022-03-03 17:07:26,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:26,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:26,796 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:26,796 INFO L87 Difference]: Start difference. First operand 5475 states and 14422 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:28,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:28,644 INFO L93 Difference]: Finished difference Result 11802 states and 31042 transitions. [2022-03-03 17:07:28,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:07:28,645 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:28,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:28,662 INFO L225 Difference]: With dead ends: 11802 [2022-03-03 17:07:28,662 INFO L226 Difference]: Without dead ends: 11511 [2022-03-03 17:07:28,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1026, Invalid=3264, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:07:28,663 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1167 mSDsluCounter, 6889 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:28,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 7158 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:28,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11511 states. [2022-03-03 17:07:28,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11511 to 5483. [2022-03-03 17:07:28,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6340751550529005) internal successors, (14440), 5482 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14440 transitions. [2022-03-03 17:07:28,752 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14440 transitions. Word has length 135 [2022-03-03 17:07:28,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:28,752 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14440 transitions. [2022-03-03 17:07:28,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:28,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14440 transitions. [2022-03-03 17:07:28,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:28,757 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:28,757 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:28,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-03 17:07:28,757 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:28,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:28,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1009907307, now seen corresponding path program 126 times [2022-03-03 17:07:28,757 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:28,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416687974] [2022-03-03 17:07:28,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:28,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:28,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:28,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:28,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416687974] [2022-03-03 17:07:28,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416687974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:28,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:28,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:28,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741121314] [2022-03-03 17:07:28,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:28,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:28,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:28,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:29,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:29,000 INFO L87 Difference]: Start difference. First operand 5483 states and 14440 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:30,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:30,506 INFO L93 Difference]: Finished difference Result 11752 states and 30912 transitions. [2022-03-03 17:07:30,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:07:30,506 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:30,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:30,521 INFO L225 Difference]: With dead ends: 11752 [2022-03-03 17:07:30,521 INFO L226 Difference]: Without dead ends: 11486 [2022-03-03 17:07:30,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=823, Invalid=2717, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:07:30,521 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1101 mSDsluCounter, 6583 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 6846 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:30,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 6846 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:30,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11486 states. [2022-03-03 17:07:30,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11486 to 5487. [2022-03-03 17:07:30,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.633430550492162) internal successors, (14447), 5486 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:30,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14447 transitions. [2022-03-03 17:07:30,622 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14447 transitions. Word has length 135 [2022-03-03 17:07:30,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:30,622 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14447 transitions. [2022-03-03 17:07:30,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:30,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14447 transitions. [2022-03-03 17:07:30,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:30,628 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:30,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:30,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-03 17:07:30,628 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:30,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:30,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1158941165, now seen corresponding path program 127 times [2022-03-03 17:07:30,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:30,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125253682] [2022-03-03 17:07:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:30,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:30,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:30,889 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:30,889 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125253682] [2022-03-03 17:07:30,889 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125253682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:30,889 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:30,889 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:30,889 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609779903] [2022-03-03 17:07:30,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:30,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:30,889 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:30,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:30,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:30,890 INFO L87 Difference]: Start difference. First operand 5487 states and 14447 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:32,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:32,535 INFO L93 Difference]: Finished difference Result 11714 states and 30812 transitions. [2022-03-03 17:07:32,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:07:32,536 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:32,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:32,550 INFO L225 Difference]: With dead ends: 11714 [2022-03-03 17:07:32,551 INFO L226 Difference]: Without dead ends: 11443 [2022-03-03 17:07:32,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=855, Invalid=2805, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:07:32,551 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1095 mSDsluCounter, 6875 mSDsCounter, 0 mSdLazyCounter, 1418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:32,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1095 Valid, 7146 Invalid, 1418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:32,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11443 states. [2022-03-03 17:07:32,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11443 to 5479. [2022-03-03 17:07:32,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6339905074844836) internal successors, (14429), 5478 states have internal predecessors, (14429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:32,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14429 transitions. [2022-03-03 17:07:32,643 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14429 transitions. Word has length 135 [2022-03-03 17:07:32,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:32,643 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14429 transitions. [2022-03-03 17:07:32,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:32,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14429 transitions. [2022-03-03 17:07:32,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:32,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:32,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:32,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-03 17:07:32,649 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:32,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:32,649 INFO L85 PathProgramCache]: Analyzing trace with hash -786160999, now seen corresponding path program 128 times [2022-03-03 17:07:32,649 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:32,649 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548294316] [2022-03-03 17:07:32,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:32,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:33,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:33,003 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:33,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548294316] [2022-03-03 17:07:33,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548294316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:33,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:33,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:33,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196583468] [2022-03-03 17:07:33,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:33,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:33,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:33,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:33,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:33,004 INFO L87 Difference]: Start difference. First operand 5479 states and 14429 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:35,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:35,513 INFO L93 Difference]: Finished difference Result 11804 states and 31030 transitions. [2022-03-03 17:07:35,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:07:35,513 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:35,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:35,528 INFO L225 Difference]: With dead ends: 11804 [2022-03-03 17:07:35,529 INFO L226 Difference]: Without dead ends: 11507 [2022-03-03 17:07:35,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=985, Invalid=3175, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:07:35,529 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1177 mSDsluCounter, 7012 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1177 SdHoareTripleChecker+Valid, 7260 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:35,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1177 Valid, 7260 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:07:35,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11507 states. [2022-03-03 17:07:35,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11507 to 5483. [2022-03-03 17:07:35,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6333454943451295) internal successors, (14436), 5482 states have internal predecessors, (14436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:35,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14436 transitions. [2022-03-03 17:07:35,627 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14436 transitions. Word has length 135 [2022-03-03 17:07:35,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:35,627 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14436 transitions. [2022-03-03 17:07:35,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:35,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14436 transitions. [2022-03-03 17:07:35,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:35,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:35,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:35,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-03 17:07:35,633 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:35,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:35,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1092228517, now seen corresponding path program 129 times [2022-03-03 17:07:35,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:35,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243664330] [2022-03-03 17:07:35,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:35,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:36,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:36,010 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:36,010 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243664330] [2022-03-03 17:07:36,011 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243664330] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:36,011 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:36,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:36,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112281919] [2022-03-03 17:07:36,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:36,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:36,011 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:36,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:36,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:36,011 INFO L87 Difference]: Start difference. First operand 5483 states and 14436 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:38,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:38,122 INFO L93 Difference]: Finished difference Result 11704 states and 30776 transitions. [2022-03-03 17:07:38,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:07:38,123 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:38,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:38,138 INFO L225 Difference]: With dead ends: 11704 [2022-03-03 17:07:38,138 INFO L226 Difference]: Without dead ends: 11438 [2022-03-03 17:07:38,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=853, Invalid=2807, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:07:38,139 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1098 mSDsluCounter, 7314 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 7563 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:38,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1098 Valid, 7563 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:07:38,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11438 states. [2022-03-03 17:07:38,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11438 to 5487. [2022-03-03 17:07:38,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.632701421800948) internal successors, (14443), 5486 states have internal predecessors, (14443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14443 transitions. [2022-03-03 17:07:38,242 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14443 transitions. Word has length 135 [2022-03-03 17:07:38,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:38,242 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14443 transitions. [2022-03-03 17:07:38,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:38,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14443 transitions. [2022-03-03 17:07:38,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:38,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:38,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:38,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-03 17:07:38,248 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:38,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:38,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1076619955, now seen corresponding path program 130 times [2022-03-03 17:07:38,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:38,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113966] [2022-03-03 17:07:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:38,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:38,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:38,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:38,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113966] [2022-03-03 17:07:38,633 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:38,633 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:38,633 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:38,633 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157173380] [2022-03-03 17:07:38,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:38,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:38,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:38,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:38,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:38,633 INFO L87 Difference]: Start difference. First operand 5487 states and 14443 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:40,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:40,334 INFO L93 Difference]: Finished difference Result 11634 states and 30588 transitions. [2022-03-03 17:07:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:07:40,334 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:40,349 INFO L225 Difference]: With dead ends: 11634 [2022-03-03 17:07:40,349 INFO L226 Difference]: Without dead ends: 11347 [2022-03-03 17:07:40,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=825, Invalid=2715, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:07:40,350 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1074 mSDsluCounter, 7231 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 7490 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:40,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 7490 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:07:40,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11347 states. [2022-03-03 17:07:40,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11347 to 5463. [2022-03-03 17:07:40,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.6343830098864887) internal successors, (14389), 5462 states have internal predecessors, (14389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:40,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14389 transitions. [2022-03-03 17:07:40,439 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14389 transitions. Word has length 135 [2022-03-03 17:07:40,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:40,439 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14389 transitions. [2022-03-03 17:07:40,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:40,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14389 transitions. [2022-03-03 17:07:40,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:40,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:40,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:40,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-03 17:07:40,445 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:40,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:40,445 INFO L85 PathProgramCache]: Analyzing trace with hash -614471499, now seen corresponding path program 131 times [2022-03-03 17:07:40,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:40,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764414876] [2022-03-03 17:07:40,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:40,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:40,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:40,720 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:40,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764414876] [2022-03-03 17:07:40,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764414876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:40,720 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:40,720 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:40,720 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721256944] [2022-03-03 17:07:40,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:40,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:40,721 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:40,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:40,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:40,721 INFO L87 Difference]: Start difference. First operand 5463 states and 14389 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:42,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:42,609 INFO L93 Difference]: Finished difference Result 11850 states and 31174 transitions. [2022-03-03 17:07:42,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:07:42,609 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:42,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:42,622 INFO L225 Difference]: With dead ends: 11850 [2022-03-03 17:07:42,622 INFO L226 Difference]: Without dead ends: 11559 [2022-03-03 17:07:42,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1003, Invalid=3157, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:07:42,622 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1143 mSDsluCounter, 7270 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 7530 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:42,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 7530 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1474 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:42,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11559 states. [2022-03-03 17:07:42,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11559 to 5483. [2022-03-03 17:07:42,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6340751550529005) internal successors, (14440), 5482 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:42,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14440 transitions. [2022-03-03 17:07:42,697 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14440 transitions. Word has length 135 [2022-03-03 17:07:42,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:42,697 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14440 transitions. [2022-03-03 17:07:42,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:42,698 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14440 transitions. [2022-03-03 17:07:42,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:42,702 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:42,702 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:42,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-03 17:07:42,703 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:42,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash -906177527, now seen corresponding path program 132 times [2022-03-03 17:07:42,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:42,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250481072] [2022-03-03 17:07:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:42,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:42,957 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:42,957 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250481072] [2022-03-03 17:07:42,957 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250481072] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:42,957 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:42,957 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:42,957 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70086179] [2022-03-03 17:07:42,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:42,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:42,958 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:42,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:42,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:42,958 INFO L87 Difference]: Start difference. First operand 5483 states and 14440 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:44,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:44,527 INFO L93 Difference]: Finished difference Result 11816 states and 31088 transitions. [2022-03-03 17:07:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:07:44,528 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:44,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:44,543 INFO L225 Difference]: With dead ends: 11816 [2022-03-03 17:07:44,543 INFO L226 Difference]: Without dead ends: 11550 [2022-03-03 17:07:44,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=816, Invalid=2724, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:07:44,543 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1126 mSDsluCounter, 6925 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 7183 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:44,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 7183 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:07:44,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11550 states. [2022-03-03 17:07:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11550 to 5487. [2022-03-03 17:07:44,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.633430550492162) internal successors, (14447), 5486 states have internal predecessors, (14447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:44,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14447 transitions. [2022-03-03 17:07:44,754 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14447 transitions. Word has length 135 [2022-03-03 17:07:44,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:44,754 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14447 transitions. [2022-03-03 17:07:44,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:44,755 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14447 transitions. [2022-03-03 17:07:44,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:44,770 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:44,770 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:44,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-03 17:07:44,771 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:44,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:44,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1219941297, now seen corresponding path program 133 times [2022-03-03 17:07:44,771 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:44,771 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931965528] [2022-03-03 17:07:44,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:44,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:45,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:45,149 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931965528] [2022-03-03 17:07:45,149 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931965528] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:45,149 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:45,149 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:45,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788581933] [2022-03-03 17:07:45,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:45,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:45,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:45,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:45,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:45,150 INFO L87 Difference]: Start difference. First operand 5487 states and 14447 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:47,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:47,340 INFO L93 Difference]: Finished difference Result 11778 states and 30988 transitions. [2022-03-03 17:07:47,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:07:47,340 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:47,355 INFO L225 Difference]: With dead ends: 11778 [2022-03-03 17:07:47,355 INFO L226 Difference]: Without dead ends: 11507 [2022-03-03 17:07:47,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=862, Invalid=2798, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:07:47,356 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1080 mSDsluCounter, 7252 mSDsCounter, 0 mSdLazyCounter, 1484 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 7514 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:47,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 7514 Invalid, 1484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:07:47,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11507 states. [2022-03-03 17:07:47,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11507 to 5479. [2022-03-03 17:07:47,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6339905074844836) internal successors, (14429), 5478 states have internal predecessors, (14429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14429 transitions. [2022-03-03 17:07:47,453 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14429 transitions. Word has length 135 [2022-03-03 17:07:47,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:47,453 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14429 transitions. [2022-03-03 17:07:47,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:47,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14429 transitions. [2022-03-03 17:07:47,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:47,459 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:47,459 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:47,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-03 17:07:47,459 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:47,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:47,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1592721463, now seen corresponding path program 134 times [2022-03-03 17:07:47,459 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:47,459 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074656038] [2022-03-03 17:07:47,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:47,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:47,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:47,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:47,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074656038] [2022-03-03 17:07:47,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074656038] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:47,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:47,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:47,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045862863] [2022-03-03 17:07:47,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:47,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:47,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:47,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:47,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:47,866 INFO L87 Difference]: Start difference. First operand 5479 states and 14429 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:50,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:50,574 INFO L93 Difference]: Finished difference Result 11948 states and 31426 transitions. [2022-03-03 17:07:50,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:07:50,575 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:50,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:50,590 INFO L225 Difference]: With dead ends: 11948 [2022-03-03 17:07:50,590 INFO L226 Difference]: Without dead ends: 11651 [2022-03-03 17:07:50,591 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1008, Invalid=3282, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:07:50,591 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1162 mSDsluCounter, 7432 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1162 SdHoareTripleChecker+Valid, 7672 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:50,591 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1162 Valid, 7672 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:07:50,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11651 states. [2022-03-03 17:07:50,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11651 to 5483. [2022-03-03 17:07:50,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6333454943451295) internal successors, (14436), 5482 states have internal predecessors, (14436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14436 transitions. [2022-03-03 17:07:50,673 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14436 transitions. Word has length 135 [2022-03-03 17:07:50,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:50,673 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14436 transitions. [2022-03-03 17:07:50,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:50,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14436 transitions. [2022-03-03 17:07:50,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:50,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:50,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:50,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-03 17:07:50,678 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:50,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:50,678 INFO L85 PathProgramCache]: Analyzing trace with hash -823856317, now seen corresponding path program 135 times [2022-03-03 17:07:50,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:50,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752536783] [2022-03-03 17:07:50,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:50,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:51,052 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:51,052 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752536783] [2022-03-03 17:07:51,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752536783] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:51,052 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:51,052 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:51,052 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551743089] [2022-03-03 17:07:51,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:51,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:51,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:51,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:51,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:51,052 INFO L87 Difference]: Start difference. First operand 5483 states and 14436 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:53,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:53,256 INFO L93 Difference]: Finished difference Result 11832 states and 31128 transitions. [2022-03-03 17:07:53,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:07:53,256 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:53,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:53,272 INFO L225 Difference]: With dead ends: 11832 [2022-03-03 17:07:53,272 INFO L226 Difference]: Without dead ends: 11566 [2022-03-03 17:07:53,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=848, Invalid=2812, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:07:53,273 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1126 mSDsluCounter, 6191 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 6464 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:53,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 6464 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:07:53,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11566 states. [2022-03-03 17:07:53,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11566 to 5487. [2022-03-03 17:07:53,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.632701421800948) internal successors, (14443), 5486 states have internal predecessors, (14443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:53,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14443 transitions. [2022-03-03 17:07:53,379 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14443 transitions. Word has length 135 [2022-03-03 17:07:53,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:53,379 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14443 transitions. [2022-03-03 17:07:53,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:53,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14443 transitions. [2022-03-03 17:07:53,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:53,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:53,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:53,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-03 17:07:53,386 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:53,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:53,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1302262507, now seen corresponding path program 136 times [2022-03-03 17:07:53,386 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:53,386 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931654688] [2022-03-03 17:07:53,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:53,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:53,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:53,779 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:53,779 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931654688] [2022-03-03 17:07:53,779 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931654688] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:53,779 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:53,779 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:53,780 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789483203] [2022-03-03 17:07:53,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:53,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:53,780 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:53,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:53,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:53,780 INFO L87 Difference]: Start difference. First operand 5487 states and 14443 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:56,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:56,109 INFO L93 Difference]: Finished difference Result 11778 states and 30984 transitions. [2022-03-03 17:07:56,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:07:56,110 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:56,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:56,126 INFO L225 Difference]: With dead ends: 11778 [2022-03-03 17:07:56,127 INFO L226 Difference]: Without dead ends: 11503 [2022-03-03 17:07:56,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=830, Invalid=2710, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:07:56,127 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1096 mSDsluCounter, 6840 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 7107 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:56,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 7107 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:07:56,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11503 states. [2022-03-03 17:07:56,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11503 to 5475. [2022-03-03 17:07:56,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6339057362075264) internal successors, (14418), 5474 states have internal predecessors, (14418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:56,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14418 transitions. [2022-03-03 17:07:56,224 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14418 transitions. Word has length 135 [2022-03-03 17:07:56,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:56,224 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14418 transitions. [2022-03-03 17:07:56,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14418 transitions. [2022-03-03 17:07:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:56,229 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:56,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:56,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-03 17:07:56,230 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:56,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:56,230 INFO L85 PathProgramCache]: Analyzing trace with hash 682956455, now seen corresponding path program 137 times [2022-03-03 17:07:56,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:56,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826672143] [2022-03-03 17:07:56,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:56,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:07:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:07:56,635 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:07:56,635 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826672143] [2022-03-03 17:07:56,635 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826672143] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:07:56,635 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:07:56,635 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:07:56,635 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223994876] [2022-03-03 17:07:56,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:07:56,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:07:56,635 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:07:56,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:07:56,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:07:56,636 INFO L87 Difference]: Start difference. First operand 5475 states and 14418 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:59,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:07:59,627 INFO L93 Difference]: Finished difference Result 11971 states and 31458 transitions. [2022-03-03 17:07:59,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 17:07:59,627 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:07:59,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:07:59,642 INFO L225 Difference]: With dead ends: 11971 [2022-03-03 17:07:59,642 INFO L226 Difference]: Without dead ends: 11581 [2022-03-03 17:07:59,643 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1190, Invalid=3780, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 17:07:59,656 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 1232 mSDsluCounter, 7127 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 7370 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:07:59,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1232 Valid, 7370 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:07:59,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11581 states. [2022-03-03 17:07:59,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11581 to 5487. [2022-03-03 17:07:59,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.631972293109734) internal successors, (14439), 5486 states have internal predecessors, (14439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:59,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14439 transitions. [2022-03-03 17:07:59,778 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14439 transitions. Word has length 135 [2022-03-03 17:07:59,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:07:59,778 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14439 transitions. [2022-03-03 17:07:59,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:07:59,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14439 transitions. [2022-03-03 17:07:59,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:07:59,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:07:59,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:07:59,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-03 17:07:59,784 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:07:59,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:07:59,784 INFO L85 PathProgramCache]: Analyzing trace with hash 289491419, now seen corresponding path program 138 times [2022-03-03 17:07:59,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:07:59,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267887382] [2022-03-03 17:07:59,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:07:59,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:07:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:00,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:00,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:00,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267887382] [2022-03-03 17:08:00,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267887382] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:00,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:00,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:00,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16659370] [2022-03-03 17:08:00,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:00,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:00,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:00,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:00,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:00,180 INFO L87 Difference]: Start difference. First operand 5487 states and 14439 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:02,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:02,294 INFO L93 Difference]: Finished difference Result 11828 states and 31084 transitions. [2022-03-03 17:08:02,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:08:02,294 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:02,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:02,307 INFO L225 Difference]: With dead ends: 11828 [2022-03-03 17:08:02,307 INFO L226 Difference]: Without dead ends: 11531 [2022-03-03 17:08:02,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1032, Invalid=3390, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:08:02,307 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1190 mSDsluCounter, 7030 mSDsCounter, 0 mSdLazyCounter, 1459 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 7281 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:02,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 7281 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:08:02,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11531 states. [2022-03-03 17:08:02,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11531 to 5491. [2022-03-03 17:08:02,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.631329690346084) internal successors, (14446), 5490 states have internal predecessors, (14446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:02,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14446 transitions. [2022-03-03 17:08:02,387 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14446 transitions. Word has length 135 [2022-03-03 17:08:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:02,387 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14446 transitions. [2022-03-03 17:08:02,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14446 transitions. [2022-03-03 17:08:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:02,392 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:02,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:02,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-03 17:08:02,393 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:02,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:02,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2127086361, now seen corresponding path program 139 times [2022-03-03 17:08:02,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:02,394 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877158718] [2022-03-03 17:08:02,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:02,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:02,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:02,658 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:02,658 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877158718] [2022-03-03 17:08:02,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877158718] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:02,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:02,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:02,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982081787] [2022-03-03 17:08:02,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:02,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:02,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:02,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:02,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:02,658 INFO L87 Difference]: Start difference. First operand 5491 states and 14446 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:04,275 INFO L93 Difference]: Finished difference Result 11728 states and 30830 transitions. [2022-03-03 17:08:04,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:08:04,275 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:04,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:04,291 INFO L225 Difference]: With dead ends: 11728 [2022-03-03 17:08:04,291 INFO L226 Difference]: Without dead ends: 11462 [2022-03-03 17:08:04,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=841, Invalid=2819, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:08:04,291 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1109 mSDsluCounter, 7295 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 7542 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:04,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 7542 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:04,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11462 states. [2022-03-03 17:08:04,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11462 to 5495. [2022-03-03 17:08:04,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6306880232981436) internal successors, (14453), 5494 states have internal predecessors, (14453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:04,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14453 transitions. [2022-03-03 17:08:04,379 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14453 transitions. Word has length 135 [2022-03-03 17:08:04,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:04,380 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14453 transitions. [2022-03-03 17:08:04,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:04,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14453 transitions. [2022-03-03 17:08:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:04,385 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:04,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:04,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-03 17:08:04,385 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:04,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:04,385 INFO L85 PathProgramCache]: Analyzing trace with hash -967537, now seen corresponding path program 140 times [2022-03-03 17:08:04,385 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:04,385 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410090220] [2022-03-03 17:08:04,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:04,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:04,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:04,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:04,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410090220] [2022-03-03 17:08:04,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410090220] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:04,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:04,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:04,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883870860] [2022-03-03 17:08:04,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:04,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:04,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:04,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:04,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:04,693 INFO L87 Difference]: Start difference. First operand 5495 states and 14453 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:06,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:06,386 INFO L93 Difference]: Finished difference Result 11642 states and 30598 transitions. [2022-03-03 17:08:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:08:06,386 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:06,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:06,398 INFO L225 Difference]: With dead ends: 11642 [2022-03-03 17:08:06,398 INFO L226 Difference]: Without dead ends: 11311 [2022-03-03 17:08:06,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=802, Invalid=2620, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:08:06,398 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1082 mSDsluCounter, 7196 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 7452 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:06,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1082 Valid, 7452 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:06,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11311 states. [2022-03-03 17:08:06,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11311 to 5427. [2022-03-03 17:08:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 2.633615923332105) internal successors, (14290), 5426 states have internal predecessors, (14290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:06,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 14290 transitions. [2022-03-03 17:08:06,472 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 14290 transitions. Word has length 135 [2022-03-03 17:08:06,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:06,472 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 14290 transitions. [2022-03-03 17:08:06,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:06,472 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 14290 transitions. [2022-03-03 17:08:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:06,477 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:06,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:06,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-03 17:08:06,479 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:06,480 INFO L85 PathProgramCache]: Analyzing trace with hash -501888233, now seen corresponding path program 141 times [2022-03-03 17:08:06,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:06,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496570396] [2022-03-03 17:08:06,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:06,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:06,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:06,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:06,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496570396] [2022-03-03 17:08:06,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496570396] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:06,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:06,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:06,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283483321] [2022-03-03 17:08:06,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:06,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:06,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:06,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:06,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:06,822 INFO L87 Difference]: Start difference. First operand 5427 states and 14290 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:09,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:09,403 INFO L93 Difference]: Finished difference Result 11834 states and 31130 transitions. [2022-03-03 17:08:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:08:09,404 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:09,420 INFO L225 Difference]: With dead ends: 11834 [2022-03-03 17:08:09,420 INFO L226 Difference]: Without dead ends: 11543 [2022-03-03 17:08:09,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 437 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=981, Invalid=3051, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:08:09,421 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1149 mSDsluCounter, 6896 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 7161 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:09,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 7161 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:08:09,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11543 states. [2022-03-03 17:08:09,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11543 to 5451. [2022-03-03 17:08:09,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.633394495412844) internal successors, (14352), 5450 states have internal predecessors, (14352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:09,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14352 transitions. [2022-03-03 17:08:09,516 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14352 transitions. Word has length 135 [2022-03-03 17:08:09,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:09,516 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14352 transitions. [2022-03-03 17:08:09,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:09,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14352 transitions. [2022-03-03 17:08:09,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:09,522 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:09,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:09,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-03 17:08:09,522 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:09,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:09,522 INFO L85 PathProgramCache]: Analyzing trace with hash -793594261, now seen corresponding path program 142 times [2022-03-03 17:08:09,522 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:09,522 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298973740] [2022-03-03 17:08:09,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:09,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:09,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:09,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:09,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298973740] [2022-03-03 17:08:09,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298973740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:09,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:09,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:09,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101903454] [2022-03-03 17:08:09,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:09,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:09,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:09,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:09,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:09,916 INFO L87 Difference]: Start difference. First operand 5451 states and 14352 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:12,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:12,014 INFO L93 Difference]: Finished difference Result 11848 states and 31160 transitions. [2022-03-03 17:08:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:08:12,015 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:12,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:12,028 INFO L225 Difference]: With dead ends: 11848 [2022-03-03 17:08:12,028 INFO L226 Difference]: Without dead ends: 11582 [2022-03-03 17:08:12,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=811, Invalid=2729, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:08:12,029 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1101 mSDsluCounter, 7371 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 7619 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:12,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1101 Valid, 7619 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:08:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11582 states. [2022-03-03 17:08:12,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11582 to 5455. [2022-03-03 17:08:12,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632746607994133) internal successors, (14359), 5454 states have internal predecessors, (14359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:12,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14359 transitions. [2022-03-03 17:08:12,116 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14359 transitions. Word has length 135 [2022-03-03 17:08:12,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:12,116 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14359 transitions. [2022-03-03 17:08:12,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:12,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14359 transitions. [2022-03-03 17:08:12,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:12,122 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:12,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:12,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-03 17:08:12,122 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:12,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:12,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1332524563, now seen corresponding path program 143 times [2022-03-03 17:08:12,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:12,122 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218640133] [2022-03-03 17:08:12,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:12,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:12,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:12,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218640133] [2022-03-03 17:08:12,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218640133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:12,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:12,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:12,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234699805] [2022-03-03 17:08:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:12,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:12,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:12,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:12,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:12,382 INFO L87 Difference]: Start difference. First operand 5455 states and 14359 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:14,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:14,029 INFO L93 Difference]: Finished difference Result 11810 states and 31060 transitions. [2022-03-03 17:08:14,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:08:14,029 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:14,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:14,046 INFO L225 Difference]: With dead ends: 11810 [2022-03-03 17:08:14,046 INFO L226 Difference]: Without dead ends: 11539 [2022-03-03 17:08:14,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:08:14,048 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1116 mSDsluCounter, 6864 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:14,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 7133 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:14,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2022-03-03 17:08:14,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5447. [2022-03-03 17:08:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.633308850532501) internal successors, (14341), 5446 states have internal predecessors, (14341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:14,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14341 transitions. [2022-03-03 17:08:14,156 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14341 transitions. Word has length 135 [2022-03-03 17:08:14,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:14,156 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14341 transitions. [2022-03-03 17:08:14,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:14,156 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14341 transitions. [2022-03-03 17:08:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:14,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:14,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:14,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-03 17:08:14,162 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:14,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:14,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1705304729, now seen corresponding path program 144 times [2022-03-03 17:08:14,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:14,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737508565] [2022-03-03 17:08:14,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:14,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:14,464 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:14,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737508565] [2022-03-03 17:08:14,464 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737508565] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:14,464 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:14,464 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:14,464 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026701228] [2022-03-03 17:08:14,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:14,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:14,464 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:14,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:14,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:14,465 INFO L87 Difference]: Start difference. First operand 5447 states and 14341 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:16,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:16,320 INFO L93 Difference]: Finished difference Result 11980 states and 31498 transitions. [2022-03-03 17:08:16,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:08:16,320 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:16,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:16,335 INFO L225 Difference]: With dead ends: 11980 [2022-03-03 17:08:16,335 INFO L226 Difference]: Without dead ends: 11683 [2022-03-03 17:08:16,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 520 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=998, Invalid=3292, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:08:16,338 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1174 mSDsluCounter, 7461 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 7702 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:16,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1174 Valid, 7702 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:16,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11683 states. [2022-03-03 17:08:16,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11683 to 5451. [2022-03-03 17:08:16,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:16,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-03-03 17:08:16,426 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-03-03 17:08:16,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:16,426 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-03-03 17:08:16,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:16,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-03-03 17:08:16,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:16,431 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:16,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:16,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-03 17:08:16,431 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:16,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:16,432 INFO L85 PathProgramCache]: Analyzing trace with hash -711273051, now seen corresponding path program 145 times [2022-03-03 17:08:16,432 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:16,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622228847] [2022-03-03 17:08:16,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:16,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:16,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:16,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622228847] [2022-03-03 17:08:16,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622228847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:16,691 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:16,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:16,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195129560] [2022-03-03 17:08:16,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:16,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:16,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:16,692 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:18,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:18,316 INFO L93 Difference]: Finished difference Result 11864 states and 31200 transitions. [2022-03-03 17:08:18,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:08:18,316 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:18,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:18,331 INFO L225 Difference]: With dead ends: 11864 [2022-03-03 17:08:18,331 INFO L226 Difference]: Without dead ends: 11598 [2022-03-03 17:08:18,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=841, Invalid=2819, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:08:18,332 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1132 mSDsluCounter, 6959 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 7219 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:18,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 7219 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:18,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11598 states. [2022-03-03 17:08:18,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11598 to 5455. [2022-03-03 17:08:18,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:18,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-03-03 17:08:18,484 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-03-03 17:08:18,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:18,484 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-03-03 17:08:18,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:18,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-03-03 17:08:18,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:18,489 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:18,489 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:18,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-03 17:08:18,490 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:18,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:18,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1414845773, now seen corresponding path program 146 times [2022-03-03 17:08:18,490 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:18,490 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125319942] [2022-03-03 17:08:18,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:18,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:18,753 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:18,753 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125319942] [2022-03-03 17:08:18,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125319942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:18,753 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:18,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:18,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187213535] [2022-03-03 17:08:18,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:18,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:18,754 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:18,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:18,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:18,754 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:20,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:20,323 INFO L93 Difference]: Finished difference Result 11810 states and 31056 transitions. [2022-03-03 17:08:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:08:20,323 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:20,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:20,339 INFO L225 Difference]: With dead ends: 11810 [2022-03-03 17:08:20,339 INFO L226 Difference]: Without dead ends: 11535 [2022-03-03 17:08:20,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=837, Invalid=2703, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:08:20,340 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1078 mSDsluCounter, 7617 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 7867 SdHoareTripleChecker+Invalid, 1487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:20,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1078 Valid, 7867 Invalid, 1487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:20,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2022-03-03 17:08:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 5443. [2022-03-03 17:08:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.633223079750092) internal successors, (14330), 5442 states have internal predecessors, (14330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:20,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14330 transitions. [2022-03-03 17:08:20,439 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14330 transitions. Word has length 135 [2022-03-03 17:08:20,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:20,439 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14330 transitions. [2022-03-03 17:08:20,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:20,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14330 transitions. [2022-03-03 17:08:20,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:20,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:20,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:20,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-03 17:08:20,445 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:20,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash 795539721, now seen corresponding path program 147 times [2022-03-03 17:08:20,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:20,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119748859] [2022-03-03 17:08:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:20,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:20,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:20,716 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:20,716 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119748859] [2022-03-03 17:08:20,716 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119748859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:20,716 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:20,716 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:20,716 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328560978] [2022-03-03 17:08:20,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:20,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:20,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:20,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:20,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:20,717 INFO L87 Difference]: Start difference. First operand 5443 states and 14330 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:22,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:22,830 INFO L93 Difference]: Finished difference Result 12147 states and 31926 transitions. [2022-03-03 17:08:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:08:22,830 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:22,842 INFO L225 Difference]: With dead ends: 12147 [2022-03-03 17:08:22,842 INFO L226 Difference]: Without dead ends: 11757 [2022-03-03 17:08:22,843 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1208, Invalid=3904, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:08:22,843 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1264 mSDsluCounter, 7173 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 7419 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:22,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1264 Valid, 7419 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2022-03-03 17:08:22,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 5455. [2022-03-03 17:08:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6312797946461313) internal successors, (14351), 5454 states have internal predecessors, (14351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:22,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14351 transitions. [2022-03-03 17:08:22,918 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14351 transitions. Word has length 135 [2022-03-03 17:08:22,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:22,918 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14351 transitions. [2022-03-03 17:08:22,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:22,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14351 transitions. [2022-03-03 17:08:22,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:22,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:22,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:22,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-03 17:08:22,923 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:22,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:22,924 INFO L85 PathProgramCache]: Analyzing trace with hash 402074685, now seen corresponding path program 148 times [2022-03-03 17:08:22,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:22,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600430101] [2022-03-03 17:08:22,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:22,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:23,167 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:23,167 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600430101] [2022-03-03 17:08:23,167 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600430101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:23,167 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:23,167 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:23,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999615047] [2022-03-03 17:08:23,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:23,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:23,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:23,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:23,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:23,168 INFO L87 Difference]: Start difference. First operand 5455 states and 14351 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:25,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:25,260 INFO L93 Difference]: Finished difference Result 11996 states and 31530 transitions. [2022-03-03 17:08:25,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:08:25,260 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:25,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:25,277 INFO L225 Difference]: With dead ends: 11996 [2022-03-03 17:08:25,278 INFO L226 Difference]: Without dead ends: 11699 [2022-03-03 17:08:25,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1024, Invalid=3398, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:08:25,278 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1164 mSDsluCounter, 7480 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1164 SdHoareTripleChecker+Valid, 7723 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:25,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1164 Valid, 7723 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:25,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11699 states. [2022-03-03 17:08:25,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11699 to 5459. [2022-03-03 17:08:25,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 2.630633931843166) internal successors, (14358), 5458 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:25,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 14358 transitions. [2022-03-03 17:08:25,387 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 14358 transitions. Word has length 135 [2022-03-03 17:08:25,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:25,388 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 14358 transitions. [2022-03-03 17:08:25,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:25,388 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 14358 transitions. [2022-03-03 17:08:25,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:25,393 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:25,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:25,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-03 17:08:25,393 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:25,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:25,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2014503095, now seen corresponding path program 149 times [2022-03-03 17:08:25,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:25,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875215311] [2022-03-03 17:08:25,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:25,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:25,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:25,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:25,778 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:25,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875215311] [2022-03-03 17:08:25,778 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875215311] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:25,778 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:25,778 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:25,779 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086428686] [2022-03-03 17:08:25,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:25,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:25,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:25,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:25,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:25,779 INFO L87 Difference]: Start difference. First operand 5459 states and 14358 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:28,064 INFO L93 Difference]: Finished difference Result 11880 states and 31232 transitions. [2022-03-03 17:08:28,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:08:28,064 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:28,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:28,078 INFO L225 Difference]: With dead ends: 11880 [2022-03-03 17:08:28,078 INFO L226 Difference]: Without dead ends: 11614 [2022-03-03 17:08:28,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=838, Invalid=2822, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:08:28,079 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1112 mSDsluCounter, 6947 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 7205 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:28,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 7205 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:08:28,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11614 states. [2022-03-03 17:08:28,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11614 to 5463. [2022-03-03 17:08:28,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.629989015012816) internal successors, (14365), 5462 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14365 transitions. [2022-03-03 17:08:28,170 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14365 transitions. Word has length 135 [2022-03-03 17:08:28,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:28,171 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14365 transitions. [2022-03-03 17:08:28,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:28,171 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14365 transitions. [2022-03-03 17:08:28,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:28,177 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:28,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:28,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-03 17:08:28,178 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:28,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:28,178 INFO L85 PathProgramCache]: Analyzing trace with hash 111615729, now seen corresponding path program 150 times [2022-03-03 17:08:28,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:28,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016235364] [2022-03-03 17:08:28,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:28,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:28,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:28,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:28,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016235364] [2022-03-03 17:08:28,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016235364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:28,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:28,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:28,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644822311] [2022-03-03 17:08:28,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:28,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:28,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:28,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:28,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:28,585 INFO L87 Difference]: Start difference. First operand 5463 states and 14365 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:30,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:30,845 INFO L93 Difference]: Finished difference Result 11818 states and 31066 transitions. [2022-03-03 17:08:30,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:08:30,845 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:30,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:30,860 INFO L225 Difference]: With dead ends: 11818 [2022-03-03 17:08:30,860 INFO L226 Difference]: Without dead ends: 11523 [2022-03-03 17:08:30,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=807, Invalid=2615, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:08:30,861 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1088 mSDsluCounter, 6879 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:30,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 7139 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:08:30,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11523 states. [2022-03-03 17:08:30,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11523 to 5431. [2022-03-03 17:08:30,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 2.632965009208103) internal successors, (14297), 5430 states have internal predecessors, (14297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:30,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 14297 transitions. [2022-03-03 17:08:30,947 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 14297 transitions. Word has length 135 [2022-03-03 17:08:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:30,947 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 14297 transitions. [2022-03-03 17:08:30,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 14297 transitions. [2022-03-03 17:08:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:30,952 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:30,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:30,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-03 17:08:30,953 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:30,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:30,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1595220151, now seen corresponding path program 151 times [2022-03-03 17:08:30,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:30,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169446529] [2022-03-03 17:08:30,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:30,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:31,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:31,307 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:31,307 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169446529] [2022-03-03 17:08:31,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169446529] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:31,307 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:31,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:31,307 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107880151] [2022-03-03 17:08:31,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:31,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:31,307 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:31,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:31,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:31,308 INFO L87 Difference]: Start difference. First operand 5431 states and 14297 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:33,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:33,518 INFO L93 Difference]: Finished difference Result 12181 states and 31920 transitions. [2022-03-03 17:08:33,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:08:33,518 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:33,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:33,531 INFO L225 Difference]: With dead ends: 12181 [2022-03-03 17:08:33,532 INFO L226 Difference]: Without dead ends: 11760 [2022-03-03 17:08:33,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 932 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1394, Invalid=4306, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:08:33,534 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 1506 mSDsluCounter, 6907 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:33,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1506 Valid, 7156 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:33,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11760 states. [2022-03-03 17:08:33,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11760 to 5435. [2022-03-03 17:08:33,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.632315053367685) internal successors, (14304), 5434 states have internal predecessors, (14304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:33,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14304 transitions. [2022-03-03 17:08:33,616 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14304 transitions. Word has length 135 [2022-03-03 17:08:33,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:33,616 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14304 transitions. [2022-03-03 17:08:33,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:33,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14304 transitions. [2022-03-03 17:08:33,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:33,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:33,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:33,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-03 17:08:33,621 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:33,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:33,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1602527007, now seen corresponding path program 152 times [2022-03-03 17:08:33,621 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:33,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979931992] [2022-03-03 17:08:33,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:33,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:33,904 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:33,904 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979931992] [2022-03-03 17:08:33,904 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979931992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:33,904 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:33,904 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:33,904 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106418512] [2022-03-03 17:08:33,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:33,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:33,904 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:33,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:33,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:33,905 INFO L87 Difference]: Start difference. First operand 5435 states and 14304 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:36,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:36,760 INFO L93 Difference]: Finished difference Result 11979 states and 31460 transitions. [2022-03-03 17:08:36,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:08:36,760 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:36,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:36,774 INFO L225 Difference]: With dead ends: 11979 [2022-03-03 17:08:36,774 INFO L226 Difference]: Without dead ends: 11589 [2022-03-03 17:08:36,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1226, Invalid=4030, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:08:36,775 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1243 mSDsluCounter, 7190 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 7437 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:36,775 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1243 Valid, 7437 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:08:36,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11589 states. [2022-03-03 17:08:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11589 to 5447. [2022-03-03 17:08:36,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.630370914432611) internal successors, (14325), 5446 states have internal predecessors, (14325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:36,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14325 transitions. [2022-03-03 17:08:36,861 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14325 transitions. Word has length 135 [2022-03-03 17:08:36,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:36,861 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14325 transitions. [2022-03-03 17:08:36,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:36,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14325 transitions. [2022-03-03 17:08:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:36,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:36,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:36,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-03 17:08:36,866 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:36,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:36,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1547344085, now seen corresponding path program 153 times [2022-03-03 17:08:36,867 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:36,867 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992132651] [2022-03-03 17:08:36,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:36,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:37,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:37,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:37,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992132651] [2022-03-03 17:08:37,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992132651] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:37,187 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:37,187 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:37,187 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356581194] [2022-03-03 17:08:37,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:37,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:37,187 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:37,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:37,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:37,187 INFO L87 Difference]: Start difference. First operand 5447 states and 14325 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:39,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:39,572 INFO L93 Difference]: Finished difference Result 11836 states and 31086 transitions. [2022-03-03 17:08:39,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:08:39,572 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:39,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:39,587 INFO L225 Difference]: With dead ends: 11836 [2022-03-03 17:08:39,587 INFO L226 Difference]: Without dead ends: 11539 [2022-03-03 17:08:39,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1014, Invalid=3408, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:08:39,588 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1174 mSDsluCounter, 7056 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 7306 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:39,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1174 Valid, 7306 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:08:39,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11539 states. [2022-03-03 17:08:39,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11539 to 5451. [2022-03-03 17:08:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.629724770642202) internal successors, (14332), 5450 states have internal predecessors, (14332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:39,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14332 transitions. [2022-03-03 17:08:39,667 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14332 transitions. Word has length 135 [2022-03-03 17:08:39,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:39,667 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14332 transitions. [2022-03-03 17:08:39,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:39,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14332 transitions. [2022-03-03 17:08:39,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:39,672 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:39,672 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:39,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-03 17:08:39,672 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:39,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:39,672 INFO L85 PathProgramCache]: Analyzing trace with hash -869233695, now seen corresponding path program 154 times [2022-03-03 17:08:39,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:39,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718319775] [2022-03-03 17:08:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:39,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:40,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:40,079 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:40,079 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718319775] [2022-03-03 17:08:40,079 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718319775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:40,079 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:40,079 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:40,079 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450550988] [2022-03-03 17:08:40,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:40,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:40,080 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:40,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:40,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:40,080 INFO L87 Difference]: Start difference. First operand 5451 states and 14332 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:42,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:42,016 INFO L93 Difference]: Finished difference Result 11736 states and 30832 transitions. [2022-03-03 17:08:42,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:08:42,017 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:42,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:42,031 INFO L225 Difference]: With dead ends: 11736 [2022-03-03 17:08:42,031 INFO L226 Difference]: Without dead ends: 11470 [2022-03-03 17:08:42,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=831, Invalid=2829, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:08:42,031 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1140 mSDsluCounter, 6927 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 7182 SdHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:42,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 7182 Invalid, 1353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:08:42,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11470 states. [2022-03-03 17:08:42,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11470 to 5455. [2022-03-03 17:08:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.629079574624129) internal successors, (14339), 5454 states have internal predecessors, (14339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:42,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14339 transitions. [2022-03-03 17:08:42,128 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14339 transitions. Word has length 135 [2022-03-03 17:08:42,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:42,128 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14339 transitions. [2022-03-03 17:08:42,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:42,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14339 transitions. [2022-03-03 17:08:42,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:42,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:42,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:42,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-03 17:08:42,135 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:42,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:42,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1256885129, now seen corresponding path program 155 times [2022-03-03 17:08:42,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:42,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25467429] [2022-03-03 17:08:42,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:42,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:42,627 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:42,627 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25467429] [2022-03-03 17:08:42,627 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25467429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:42,627 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:42,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:42,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715943537] [2022-03-03 17:08:42,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:42,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:42,627 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:42,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:42,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:42,628 INFO L87 Difference]: Start difference. First operand 5455 states and 14339 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:44,782 INFO L93 Difference]: Finished difference Result 11602 states and 30484 transitions. [2022-03-03 17:08:44,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:08:44,783 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:44,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:44,800 INFO L225 Difference]: With dead ends: 11602 [2022-03-03 17:08:44,800 INFO L226 Difference]: Without dead ends: 11299 [2022-03-03 17:08:44,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=781, Invalid=2525, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:08:44,801 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1082 mSDsluCounter, 7185 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 7438 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:44,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1082 Valid, 7438 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:08:44,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11299 states. [2022-03-03 17:08:44,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11299 to 5415. [2022-03-03 17:08:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.6333579608422606) internal successors, (14257), 5414 states have internal predecessors, (14257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:44,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14257 transitions. [2022-03-03 17:08:44,905 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14257 transitions. Word has length 135 [2022-03-03 17:08:44,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:44,905 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14257 transitions. [2022-03-03 17:08:44,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:44,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14257 transitions. [2022-03-03 17:08:44,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:44,911 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:44,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:44,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-03 17:08:44,911 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:44,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:44,912 INFO L85 PathProgramCache]: Analyzing trace with hash 423770293, now seen corresponding path program 156 times [2022-03-03 17:08:44,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:44,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333149515] [2022-03-03 17:08:44,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:44,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:44,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:45,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:45,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333149515] [2022-03-03 17:08:45,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333149515] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:45,336 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:45,336 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:45,336 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31833819] [2022-03-03 17:08:45,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:45,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:45,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:45,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:45,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:45,337 INFO L87 Difference]: Start difference. First operand 5415 states and 14257 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:48,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:48,052 INFO L93 Difference]: Finished difference Result 11510 states and 30263 transitions. [2022-03-03 17:08:48,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:08:48,052 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:48,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:48,067 INFO L225 Difference]: With dead ends: 11510 [2022-03-03 17:08:48,067 INFO L226 Difference]: Without dead ends: 11219 [2022-03-03 17:08:48,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=979, Invalid=3053, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:08:48,068 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1148 mSDsluCounter, 7363 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 7629 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:48,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 7629 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:08:48,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11219 states. [2022-03-03 17:08:48,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11219 to 5491. [2022-03-03 17:08:48,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6342440801457196) internal successors, (14462), 5490 states have internal predecessors, (14462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14462 transitions. [2022-03-03 17:08:48,148 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14462 transitions. Word has length 135 [2022-03-03 17:08:48,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:48,148 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14462 transitions. [2022-03-03 17:08:48,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:48,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14462 transitions. [2022-03-03 17:08:48,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:48,153 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:48,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:48,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-03 17:08:48,153 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:48,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:48,153 INFO L85 PathProgramCache]: Analyzing trace with hash 132064265, now seen corresponding path program 157 times [2022-03-03 17:08:48,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:48,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052232860] [2022-03-03 17:08:48,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:48,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:48,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:48,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052232860] [2022-03-03 17:08:48,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052232860] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:48,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:48,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:48,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672183880] [2022-03-03 17:08:48,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:48,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:48,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:48,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:48,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:48,578 INFO L87 Difference]: Start difference. First operand 5491 states and 14462 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:50,873 INFO L93 Difference]: Finished difference Result 11524 states and 30293 transitions. [2022-03-03 17:08:50,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:08:50,873 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:50,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:50,890 INFO L225 Difference]: With dead ends: 11524 [2022-03-03 17:08:50,891 INFO L226 Difference]: Without dead ends: 11258 [2022-03-03 17:08:50,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=805, Invalid=2735, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:08:50,891 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1130 mSDsluCounter, 7049 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 7315 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:50,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 7315 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:08:50,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11258 states. [2022-03-03 17:08:50,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11258 to 5495. [2022-03-03 17:08:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.633600291226793) internal successors, (14469), 5494 states have internal predecessors, (14469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:50,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14469 transitions. [2022-03-03 17:08:50,998 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14469 transitions. Word has length 135 [2022-03-03 17:08:50,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:50,998 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14469 transitions. [2022-03-03 17:08:50,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:50,998 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14469 transitions. [2022-03-03 17:08:51,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:51,004 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:51,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:51,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-03 17:08:51,004 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:51,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:51,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2036784207, now seen corresponding path program 158 times [2022-03-03 17:08:51,005 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:51,005 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189881637] [2022-03-03 17:08:51,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:51,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:51,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:51,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189881637] [2022-03-03 17:08:51,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189881637] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:51,382 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:51,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:51,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136102058] [2022-03-03 17:08:51,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:51,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:51,382 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:51,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:51,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:51,382 INFO L87 Difference]: Start difference. First operand 5495 states and 14469 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:53,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:53,679 INFO L93 Difference]: Finished difference Result 11486 states and 30193 transitions. [2022-03-03 17:08:53,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:08:53,679 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:53,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:53,693 INFO L225 Difference]: With dead ends: 11486 [2022-03-03 17:08:53,693 INFO L226 Difference]: Without dead ends: 11215 [2022-03-03 17:08:53,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:08:53,694 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1106 mSDsluCounter, 6584 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 6866 SdHoareTripleChecker+Invalid, 1320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:53,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1106 Valid, 6866 Invalid, 1320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:08:53,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11215 states. [2022-03-03 17:08:53,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11215 to 5487. [2022-03-03 17:08:53,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6341596791833757) internal successors, (14451), 5486 states have internal predecessors, (14451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14451 transitions. [2022-03-03 17:08:53,778 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14451 transitions. Word has length 135 [2022-03-03 17:08:53,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:53,778 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14451 transitions. [2022-03-03 17:08:53,779 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:53,779 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14451 transitions. [2022-03-03 17:08:53,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:53,784 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:53,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:53,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-03 17:08:53,784 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:53,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:53,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1664004041, now seen corresponding path program 159 times [2022-03-03 17:08:53,785 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:53,785 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517272800] [2022-03-03 17:08:53,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:53,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:54,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:54,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:54,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517272800] [2022-03-03 17:08:54,160 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517272800] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:54,160 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:54,160 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:54,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860512050] [2022-03-03 17:08:54,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:54,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:54,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:54,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:54,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:54,160 INFO L87 Difference]: Start difference. First operand 5487 states and 14451 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:56,730 INFO L93 Difference]: Finished difference Result 11656 states and 30631 transitions. [2022-03-03 17:08:56,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:08:56,730 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:56,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:56,747 INFO L225 Difference]: With dead ends: 11656 [2022-03-03 17:08:56,747 INFO L226 Difference]: Without dead ends: 11359 [2022-03-03 17:08:56,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=990, Invalid=3300, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:08:56,748 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1187 mSDsluCounter, 7153 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 7411 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:56,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1187 Valid, 7411 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:08:56,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11359 states. [2022-03-03 17:08:56,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11359 to 5491. [2022-03-03 17:08:56,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6335154826958105) internal successors, (14458), 5490 states have internal predecessors, (14458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:56,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14458 transitions. [2022-03-03 17:08:56,887 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14458 transitions. Word has length 135 [2022-03-03 17:08:56,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:56,887 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14458 transitions. [2022-03-03 17:08:56,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:56,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14458 transitions. [2022-03-03 17:08:56,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:56,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:56,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:56,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-03 17:08:56,892 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:56,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:56,893 INFO L85 PathProgramCache]: Analyzing trace with hash 214385475, now seen corresponding path program 160 times [2022-03-03 17:08:56,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:56,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018521252] [2022-03-03 17:08:56,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:56,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:08:57,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:08:57,345 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:08:57,345 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018521252] [2022-03-03 17:08:57,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018521252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:08:57,345 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:08:57,345 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:08:57,345 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947510958] [2022-03-03 17:08:57,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:08:57,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:08:57,346 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:08:57,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:08:57,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:08:57,346 INFO L87 Difference]: Start difference. First operand 5491 states and 14458 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:59,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:08:59,741 INFO L93 Difference]: Finished difference Result 11540 states and 30333 transitions. [2022-03-03 17:08:59,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:08:59,742 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:08:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:08:59,757 INFO L225 Difference]: With dead ends: 11540 [2022-03-03 17:08:59,757 INFO L226 Difference]: Without dead ends: 11274 [2022-03-03 17:08:59,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=834, Invalid=2826, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:08:59,758 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1140 mSDsluCounter, 7053 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 7320 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:08:59,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 7320 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:08:59,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11274 states. [2022-03-03 17:08:59,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11274 to 5495. [2022-03-03 17:08:59,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6328722242446303) internal successors, (14465), 5494 states have internal predecessors, (14465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:59,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14465 transitions. [2022-03-03 17:08:59,848 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14465 transitions. Word has length 135 [2022-03-03 17:08:59,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:08:59,848 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14465 transitions. [2022-03-03 17:08:59,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:08:59,848 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14465 transitions. [2022-03-03 17:08:59,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:08:59,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:08:59,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:08:59,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-03 17:08:59,853 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:08:59,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:08:59,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1954462997, now seen corresponding path program 161 times [2022-03-03 17:08:59,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:08:59,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660776044] [2022-03-03 17:08:59,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:08:59,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:08:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:00,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:00,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660776044] [2022-03-03 17:09:00,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660776044] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:00,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:00,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:00,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454654220] [2022-03-03 17:09:00,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:00,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:00,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:00,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:00,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:00,129 INFO L87 Difference]: Start difference. First operand 5495 states and 14465 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:01,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:01,824 INFO L93 Difference]: Finished difference Result 11486 states and 30189 transitions. [2022-03-03 17:09:01,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:09:01,824 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:01,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:01,838 INFO L225 Difference]: With dead ends: 11486 [2022-03-03 17:09:01,839 INFO L226 Difference]: Without dead ends: 11211 [2022-03-03 17:09:01,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=833, Invalid=2707, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:09:01,839 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1117 mSDsluCounter, 6938 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 7211 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:01,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 7211 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:01,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11211 states. [2022-03-03 17:09:01,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11211 to 5483. [2022-03-03 17:09:01,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.6340751550529005) internal successors, (14440), 5482 states have internal predecessors, (14440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14440 transitions. [2022-03-03 17:09:01,922 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14440 transitions. Word has length 135 [2022-03-03 17:09:01,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:01,922 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14440 transitions. [2022-03-03 17:09:01,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:01,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14440 transitions. [2022-03-03 17:09:01,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:01,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:01,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:01,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-03 17:09:01,927 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:01,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:01,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1721198247, now seen corresponding path program 162 times [2022-03-03 17:09:01,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:01,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826128589] [2022-03-03 17:09:01,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:01,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:02,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:02,201 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:02,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826128589] [2022-03-03 17:09:02,201 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826128589] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:02,201 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:02,201 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:02,201 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416909476] [2022-03-03 17:09:02,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:02,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:02,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:02,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:02,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:02,202 INFO L87 Difference]: Start difference. First operand 5483 states and 14440 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:04,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:04,218 INFO L93 Difference]: Finished difference Result 11823 states and 31059 transitions. [2022-03-03 17:09:04,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:09:04,218 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:04,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:04,233 INFO L225 Difference]: With dead ends: 11823 [2022-03-03 17:09:04,233 INFO L226 Difference]: Without dead ends: 11433 [2022-03-03 17:09:04,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1196, Invalid=3916, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:09:04,234 INFO L933 BasicCegarLoop]: 420 mSDtfsCounter, 1238 mSDsluCounter, 7687 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 7929 SdHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:04,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 7929 Invalid, 1515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:04,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11433 states. [2022-03-03 17:09:04,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11433 to 5495. [2022-03-03 17:09:04,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.632144157262468) internal successors, (14461), 5494 states have internal predecessors, (14461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14461 transitions. [2022-03-03 17:09:04,326 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14461 transitions. Word has length 135 [2022-03-03 17:09:04,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:04,326 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14461 transitions. [2022-03-03 17:09:04,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:04,326 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14461 transitions. [2022-03-03 17:09:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:04,331 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:04,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:04,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-03 17:09:04,331 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:04,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:04,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1327733211, now seen corresponding path program 163 times [2022-03-03 17:09:04,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:04,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600353620] [2022-03-03 17:09:04,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:04,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:04,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:04,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:04,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600353620] [2022-03-03 17:09:04,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600353620] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:04,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:04,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:04,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330675007] [2022-03-03 17:09:04,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:04,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:04,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:04,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:04,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:04,596 INFO L87 Difference]: Start difference. First operand 5495 states and 14461 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:06,504 INFO L93 Difference]: Finished difference Result 11672 states and 30663 transitions. [2022-03-03 17:09:06,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:09:06,504 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:06,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:06,518 INFO L225 Difference]: With dead ends: 11672 [2022-03-03 17:09:06,519 INFO L226 Difference]: Without dead ends: 11375 [2022-03-03 17:09:06,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1012, Invalid=3410, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:09:06,519 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1182 mSDsluCounter, 7169 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 7429 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:06,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 7429 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:06,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11375 states. [2022-03-03 17:09:06,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11375 to 5499. [2022-03-03 17:09:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.6315023644961806) internal successors, (14468), 5498 states have internal predecessors, (14468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:06,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14468 transitions. [2022-03-03 17:09:06,615 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14468 transitions. Word has length 135 [2022-03-03 17:09:06,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:06,615 INFO L470 AbstractCegarLoop]: Abstraction has 5499 states and 14468 transitions. [2022-03-03 17:09:06,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:06,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14468 transitions. [2022-03-03 17:09:06,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:06,621 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:06,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:06,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-03 17:09:06,628 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:06,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:06,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1088844569, now seen corresponding path program 164 times [2022-03-03 17:09:06,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:06,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106557721] [2022-03-03 17:09:06,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:06,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:06,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:06,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:06,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:06,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106557721] [2022-03-03 17:09:06,900 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106557721] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:06,900 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:06,900 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:06,900 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146842144] [2022-03-03 17:09:06,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:06,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:06,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:06,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:06,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:06,900 INFO L87 Difference]: Start difference. First operand 5499 states and 14468 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:08,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:08,525 INFO L93 Difference]: Finished difference Result 11556 states and 30365 transitions. [2022-03-03 17:09:08,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:09:08,526 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:08,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:08,542 INFO L225 Difference]: With dead ends: 11556 [2022-03-03 17:09:08,542 INFO L226 Difference]: Without dead ends: 11290 [2022-03-03 17:09:08,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=830, Invalid=2830, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:09:08,542 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1130 mSDsluCounter, 7041 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 7306 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:08,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 7306 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:08,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11290 states. [2022-03-03 17:09:08,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11290 to 5503. [2022-03-03 17:09:08,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 5502 states have (on average 2.6308615049073065) internal successors, (14475), 5502 states have internal predecessors, (14475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:08,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 14475 transitions. [2022-03-03 17:09:08,647 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 14475 transitions. Word has length 135 [2022-03-03 17:09:08,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:08,647 INFO L470 AbstractCegarLoop]: Abstraction has 5503 states and 14475 transitions. [2022-03-03 17:09:08,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:08,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 14475 transitions. [2022-03-03 17:09:08,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:08,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:08,653 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:08,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-03 17:09:08,653 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:08,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:08,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1037274255, now seen corresponding path program 165 times [2022-03-03 17:09:08,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:08,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309723643] [2022-03-03 17:09:08,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:08,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:08,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:08,919 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:08,919 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309723643] [2022-03-03 17:09:08,919 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309723643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:08,919 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:08,919 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:08,919 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437355824] [2022-03-03 17:09:08,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:08,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:08,919 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:08,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:08,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:08,920 INFO L87 Difference]: Start difference. First operand 5503 states and 14475 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:10,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:10,544 INFO L93 Difference]: Finished difference Result 11494 states and 30199 transitions. [2022-03-03 17:09:10,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:09:10,544 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:10,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:10,558 INFO L225 Difference]: With dead ends: 11494 [2022-03-03 17:09:10,558 INFO L226 Difference]: Without dead ends: 11199 [2022-03-03 17:09:10,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=805, Invalid=2617, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:09:10,559 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1096 mSDsluCounter, 7319 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 7582 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:10,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 7582 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11199 states. [2022-03-03 17:09:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11199 to 5471. [2022-03-03 17:09:10,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5471 states, 5470 states have (on average 2.63382084095064) internal successors, (14407), 5470 states have internal predecessors, (14407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:10,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5471 states to 5471 states and 14407 transitions. [2022-03-03 17:09:10,649 INFO L78 Accepts]: Start accepts. Automaton has 5471 states and 14407 transitions. Word has length 135 [2022-03-03 17:09:10,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:10,649 INFO L470 AbstractCegarLoop]: Abstraction has 5471 states and 14407 transitions. [2022-03-03 17:09:10,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:10,649 INFO L276 IsEmpty]: Start isEmpty. Operand 5471 states and 14407 transitions. [2022-03-03 17:09:10,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:10,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:10,655 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:10,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-03 17:09:10,655 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:10,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:10,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1774088619, now seen corresponding path program 166 times [2022-03-03 17:09:10,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:10,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519902940] [2022-03-03 17:09:10,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:10,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:10,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:10,912 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519902940] [2022-03-03 17:09:10,912 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519902940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:10,912 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:10,912 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:10,912 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902192066] [2022-03-03 17:09:10,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:10,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:10,912 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:10,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:10,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:10,912 INFO L87 Difference]: Start difference. First operand 5471 states and 14407 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:13,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:13,155 INFO L93 Difference]: Finished difference Result 12065 states and 31609 transitions. [2022-03-03 17:09:13,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:09:13,155 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:13,172 INFO L225 Difference]: With dead ends: 12065 [2022-03-03 17:09:13,172 INFO L226 Difference]: Without dead ends: 11644 [2022-03-03 17:09:13,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 940 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1378, Invalid=4322, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:09:13,173 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 1497 mSDsluCounter, 7027 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 7285 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:13,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 7285 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:13,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11644 states. [2022-03-03 17:09:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11644 to 5475. [2022-03-03 17:09:13,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5475 states, 5474 states have (on average 2.6331750091340886) internal successors, (14414), 5474 states have internal predecessors, (14414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:13,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5475 states to 5475 states and 14414 transitions. [2022-03-03 17:09:13,284 INFO L78 Accepts]: Start accepts. Automaton has 5475 states and 14414 transitions. Word has length 135 [2022-03-03 17:09:13,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:13,284 INFO L470 AbstractCegarLoop]: Abstraction has 5475 states and 14414 transitions. [2022-03-03 17:09:13,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:13,284 INFO L276 IsEmpty]: Start isEmpty. Operand 5475 states and 14414 transitions. [2022-03-03 17:09:13,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:13,290 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:13,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:13,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-03 17:09:13,290 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:13,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:13,291 INFO L85 PathProgramCache]: Analyzing trace with hash -676868481, now seen corresponding path program 167 times [2022-03-03 17:09:13,291 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:13,291 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533417974] [2022-03-03 17:09:13,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:13,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:13,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:13,538 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:13,538 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533417974] [2022-03-03 17:09:13,538 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533417974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:13,538 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:13,538 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:13,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587597348] [2022-03-03 17:09:13,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:13,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:13,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:13,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:13,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:13,539 INFO L87 Difference]: Start difference. First operand 5475 states and 14414 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:15,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:15,874 INFO L93 Difference]: Finished difference Result 11839 states and 31091 transitions. [2022-03-03 17:09:15,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:09:15,874 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:15,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:15,889 INFO L225 Difference]: With dead ends: 11839 [2022-03-03 17:09:15,889 INFO L226 Difference]: Without dead ends: 11449 [2022-03-03 17:09:15,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1214, Invalid=4042, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:09:15,890 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1239 mSDsluCounter, 6917 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1239 SdHoareTripleChecker+Valid, 7181 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:15,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1239 Valid, 7181 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:15,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2022-03-03 17:09:15,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 5487. [2022-03-03 17:09:15,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5487 states, 5486 states have (on average 2.6312431644185197) internal successors, (14435), 5486 states have internal predecessors, (14435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:15,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5487 states to 5487 states and 14435 transitions. [2022-03-03 17:09:15,974 INFO L78 Accepts]: Start accepts. Automaton has 5487 states and 14435 transitions. Word has length 135 [2022-03-03 17:09:15,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:15,974 INFO L470 AbstractCegarLoop]: Abstraction has 5487 states and 14435 transitions. [2022-03-03 17:09:15,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:15,975 INFO L276 IsEmpty]: Start isEmpty. Operand 5487 states and 14435 transitions. [2022-03-03 17:09:15,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:15,979 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:15,979 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:15,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-03 17:09:15,979 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:15,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:15,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1821964685, now seen corresponding path program 168 times [2022-03-03 17:09:15,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:15,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977170150] [2022-03-03 17:09:15,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:15,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:16,391 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:16,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977170150] [2022-03-03 17:09:16,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977170150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:16,392 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:16,392 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:16,392 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323786111] [2022-03-03 17:09:16,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:16,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:16,392 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:16,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:16,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:16,392 INFO L87 Difference]: Start difference. First operand 5487 states and 14435 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:19,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:19,060 INFO L93 Difference]: Finished difference Result 11688 states and 30695 transitions. [2022-03-03 17:09:19,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:09:19,061 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:19,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:19,075 INFO L225 Difference]: With dead ends: 11688 [2022-03-03 17:09:19,075 INFO L226 Difference]: Without dead ends: 11391 [2022-03-03 17:09:19,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1002, Invalid=3420, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:09:19,075 INFO L933 BasicCegarLoop]: 412 mSDtfsCounter, 1167 mSDsluCounter, 7592 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 7840 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:19,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 7840 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:09:19,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11391 states. [2022-03-03 17:09:19,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11391 to 5491. [2022-03-03 17:09:19,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5491 states, 5490 states have (on average 2.6306010928961747) internal successors, (14442), 5490 states have internal predecessors, (14442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:19,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5491 states to 5491 states and 14442 transitions. [2022-03-03 17:09:19,166 INFO L78 Accepts]: Start accepts. Automaton has 5491 states and 14442 transitions. Word has length 135 [2022-03-03 17:09:19,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:19,166 INFO L470 AbstractCegarLoop]: Abstraction has 5491 states and 14442 transitions. [2022-03-03 17:09:19,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:19,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5491 states and 14442 transitions. [2022-03-03 17:09:19,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:19,172 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:19,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:19,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-03 17:09:19,172 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:19,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash 56424831, now seen corresponding path program 169 times [2022-03-03 17:09:19,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:19,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971159876] [2022-03-03 17:09:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:19,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:19,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:19,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971159876] [2022-03-03 17:09:19,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971159876] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:19,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:19,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:19,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047457649] [2022-03-03 17:09:19,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:19,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:19,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:19,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:19,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:19,561 INFO L87 Difference]: Start difference. First operand 5491 states and 14442 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:21,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:21,796 INFO L93 Difference]: Finished difference Result 11572 states and 30397 transitions. [2022-03-03 17:09:21,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:09:21,797 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:21,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:21,812 INFO L225 Difference]: With dead ends: 11572 [2022-03-03 17:09:21,812 INFO L226 Difference]: Without dead ends: 11306 [2022-03-03 17:09:21,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=825, Invalid=2835, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:09:21,813 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1119 mSDsluCounter, 7052 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 7315 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:21,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 7315 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:09:21,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11306 states. [2022-03-03 17:09:21,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11306 to 5495. [2022-03-03 17:09:21,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.629959956315981) internal successors, (14449), 5494 states have internal predecessors, (14449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14449 transitions. [2022-03-03 17:09:21,904 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14449 transitions. Word has length 135 [2022-03-03 17:09:21,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:21,904 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14449 transitions. [2022-03-03 17:09:21,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:21,904 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14449 transitions. [2022-03-03 17:09:21,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:21,909 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:21,910 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:21,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-03 17:09:21,910 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:21,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:21,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2112423641, now seen corresponding path program 170 times [2022-03-03 17:09:21,910 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:21,910 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602898059] [2022-03-03 17:09:21,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:21,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:22,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:22,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602898059] [2022-03-03 17:09:22,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602898059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:22,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:22,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:22,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107437882] [2022-03-03 17:09:22,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:22,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:22,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:22,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:22,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:22,288 INFO L87 Difference]: Start difference. First operand 5495 states and 14449 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:24,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:24,219 INFO L93 Difference]: Finished difference Result 11486 states and 30173 transitions. [2022-03-03 17:09:24,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:09:24,219 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:24,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:24,234 INFO L225 Difference]: With dead ends: 11486 [2022-03-03 17:09:24,234 INFO L226 Difference]: Without dead ends: 11195 [2022-03-03 17:09:24,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=781, Invalid=2525, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:09:24,235 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1087 mSDsluCounter, 6959 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 7226 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:24,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1087 Valid, 7226 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:09:24,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11195 states. [2022-03-03 17:09:24,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11195 to 5467. [2022-03-03 17:09:24,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5467 states, 5466 states have (on average 2.6337358214416393) internal successors, (14396), 5466 states have internal predecessors, (14396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5467 states to 5467 states and 14396 transitions. [2022-03-03 17:09:24,333 INFO L78 Accepts]: Start accepts. Automaton has 5467 states and 14396 transitions. Word has length 135 [2022-03-03 17:09:24,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:24,333 INFO L470 AbstractCegarLoop]: Abstraction has 5467 states and 14396 transitions. [2022-03-03 17:09:24,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:24,333 INFO L276 IsEmpty]: Start isEmpty. Operand 5467 states and 14396 transitions. [2022-03-03 17:09:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:24,339 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:24,339 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:24,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-03 17:09:24,339 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:24,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash -773333239, now seen corresponding path program 171 times [2022-03-03 17:09:24,339 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:24,339 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818870455] [2022-03-03 17:09:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:24,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:24,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:24,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818870455] [2022-03-03 17:09:24,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818870455] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:24,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:24,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:24,591 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488553794] [2022-03-03 17:09:24,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:24,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:24,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:24,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:24,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:24,592 INFO L87 Difference]: Start difference. First operand 5467 states and 14396 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:27,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:27,116 INFO L93 Difference]: Finished difference Result 11819 states and 30881 transitions. [2022-03-03 17:09:27,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 17:09:27,116 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:27,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:27,133 INFO L225 Difference]: With dead ends: 11819 [2022-03-03 17:09:27,134 INFO L226 Difference]: Without dead ends: 10995 [2022-03-03 17:09:27,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1534, Invalid=4628, Unknown=0, NotChecked=0, Total=6162 [2022-03-03 17:09:27,135 INFO L933 BasicCegarLoop]: 448 mSDtfsCounter, 1637 mSDsluCounter, 7644 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 7918 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:27,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1637 Valid, 7918 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:27,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10995 states. [2022-03-03 17:09:27,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10995 to 5519. [2022-03-03 17:09:27,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5519 states, 5518 states have (on average 2.6254077564334906) internal successors, (14487), 5518 states have internal predecessors, (14487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:27,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5519 states to 5519 states and 14487 transitions. [2022-03-03 17:09:27,240 INFO L78 Accepts]: Start accepts. Automaton has 5519 states and 14487 transitions. Word has length 135 [2022-03-03 17:09:27,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:27,240 INFO L470 AbstractCegarLoop]: Abstraction has 5519 states and 14487 transitions. [2022-03-03 17:09:27,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:27,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5519 states and 14487 transitions. [2022-03-03 17:09:27,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:27,246 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:27,246 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:27,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-03 17:09:27,247 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:27,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:27,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1008716417, now seen corresponding path program 172 times [2022-03-03 17:09:27,247 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:27,247 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603538935] [2022-03-03 17:09:27,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:27,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:27,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:27,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:27,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603538935] [2022-03-03 17:09:27,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603538935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:27,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:27,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:27,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335182246] [2022-03-03 17:09:27,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:27,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:27,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:27,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:27,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:27,526 INFO L87 Difference]: Start difference. First operand 5519 states and 14487 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:30,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:30,775 INFO L93 Difference]: Finished difference Result 11645 states and 30418 transitions. [2022-03-03 17:09:30,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:09:30,775 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:30,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:30,790 INFO L225 Difference]: With dead ends: 11645 [2022-03-03 17:09:30,790 INFO L226 Difference]: Without dead ends: 11224 [2022-03-03 17:09:30,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 888 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1360, Invalid=4340, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:09:30,791 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1518 mSDsluCounter, 7534 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 7794 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:30,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1518 Valid, 7794 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:09:30,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11224 states. [2022-03-03 17:09:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11224 to 5523. [2022-03-03 17:09:30,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 5522 states have (on average 2.62477363274176) internal successors, (14494), 5522 states have internal predecessors, (14494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:30,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 14494 transitions. [2022-03-03 17:09:30,880 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 14494 transitions. Word has length 135 [2022-03-03 17:09:30,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:30,880 INFO L470 AbstractCegarLoop]: Abstraction has 5523 states and 14494 transitions. [2022-03-03 17:09:30,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:30,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 14494 transitions. [2022-03-03 17:09:30,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:30,885 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:30,885 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:30,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-03 17:09:30,885 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:30,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2105936555, now seen corresponding path program 173 times [2022-03-03 17:09:30,885 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:30,885 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292767940] [2022-03-03 17:09:30,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:30,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:31,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:31,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:31,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292767940] [2022-03-03 17:09:31,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292767940] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:31,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:31,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:31,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813283020] [2022-03-03 17:09:31,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:31,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:31,294 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:31,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:31,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:31,294 INFO L87 Difference]: Start difference. First operand 5523 states and 14494 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:34,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:34,127 INFO L93 Difference]: Finished difference Result 11419 states and 29900 transitions. [2022-03-03 17:09:34,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:09:34,127 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:34,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:34,140 INFO L225 Difference]: With dead ends: 11419 [2022-03-03 17:09:34,140 INFO L226 Difference]: Without dead ends: 11029 [2022-03-03 17:09:34,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1198, Invalid=4058, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:09:34,141 INFO L933 BasicCegarLoop]: 432 mSDtfsCounter, 1238 mSDsluCounter, 7882 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 8136 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:34,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1238 Valid, 8136 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:09:34,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11029 states. [2022-03-03 17:09:34,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11029 to 5535. [2022-03-03 17:09:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5535 states, 5534 states have (on average 2.6228767618359234) internal successors, (14515), 5534 states have internal predecessors, (14515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5535 states to 5535 states and 14515 transitions. [2022-03-03 17:09:34,227 INFO L78 Accepts]: Start accepts. Automaton has 5535 states and 14515 transitions. Word has length 135 [2022-03-03 17:09:34,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:34,227 INFO L470 AbstractCegarLoop]: Abstraction has 5535 states and 14515 transitions. [2022-03-03 17:09:34,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:34,227 INFO L276 IsEmpty]: Start isEmpty. Operand 5535 states and 14515 transitions. [2022-03-03 17:09:34,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:34,233 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:34,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:34,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-03 17:09:34,233 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:34,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:34,234 INFO L85 PathProgramCache]: Analyzing trace with hash 960840351, now seen corresponding path program 174 times [2022-03-03 17:09:34,234 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:34,234 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309538550] [2022-03-03 17:09:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:34,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:34,644 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:34,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309538550] [2022-03-03 17:09:34,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309538550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:34,644 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:34,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:34,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189047201] [2022-03-03 17:09:34,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:34,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:34,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:34,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:34,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:34,644 INFO L87 Difference]: Start difference. First operand 5535 states and 14515 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:36,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:36,509 INFO L93 Difference]: Finished difference Result 11268 states and 29504 transitions. [2022-03-03 17:09:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:09:36,510 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:36,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:36,525 INFO L225 Difference]: With dead ends: 11268 [2022-03-03 17:09:36,525 INFO L226 Difference]: Without dead ends: 10971 [2022-03-03 17:09:36,526 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=992, Invalid=3430, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:09:36,526 INFO L933 BasicCegarLoop]: 422 mSDtfsCounter, 1174 mSDsluCounter, 7365 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 7629 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:36,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1174 Valid, 7629 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:36,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10971 states. [2022-03-03 17:09:36,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10971 to 5539. [2022-03-03 17:09:36,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5539 states, 5538 states have (on average 2.6222462983026364) internal successors, (14522), 5538 states have internal predecessors, (14522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 14522 transitions. [2022-03-03 17:09:36,628 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 14522 transitions. Word has length 135 [2022-03-03 17:09:36,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:36,628 INFO L470 AbstractCegarLoop]: Abstraction has 5539 states and 14522 transitions. [2022-03-03 17:09:36,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:36,628 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 14522 transitions. [2022-03-03 17:09:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:36,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:36,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:36,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-03 17:09:36,634 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1455737429, now seen corresponding path program 175 times [2022-03-03 17:09:36,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:36,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406073466] [2022-03-03 17:09:36,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:36,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:36,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:36,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406073466] [2022-03-03 17:09:36,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406073466] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:36,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:36,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:36,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121448396] [2022-03-03 17:09:36,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:36,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:36,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:36,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:36,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:36,935 INFO L87 Difference]: Start difference. First operand 5539 states and 14522 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:38,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:38,544 INFO L93 Difference]: Finished difference Result 11152 states and 29206 transitions. [2022-03-03 17:09:38,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:09:38,545 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:38,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:38,561 INFO L225 Difference]: With dead ends: 11152 [2022-03-03 17:09:38,561 INFO L226 Difference]: Without dead ends: 10886 [2022-03-03 17:09:38,561 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=819, Invalid=2841, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:09:38,561 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1126 mSDsluCounter, 7188 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 7461 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:38,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 7461 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:38,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10886 states. [2022-03-03 17:09:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10886 to 5543. [2022-03-03 17:09:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5543 states, 5542 states have (on average 2.621616744857452) internal successors, (14529), 5542 states have internal predecessors, (14529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:38,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5543 states to 5543 states and 14529 transitions. [2022-03-03 17:09:38,664 INFO L78 Accepts]: Start accepts. Automaton has 5543 states and 14529 transitions. Word has length 135 [2022-03-03 17:09:38,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:38,664 INFO L470 AbstractCegarLoop]: Abstraction has 5543 states and 14529 transitions. [2022-03-03 17:09:38,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:38,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5543 states and 14529 transitions. [2022-03-03 17:09:38,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:38,670 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:38,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:38,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-03 17:09:38,671 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:38,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:38,671 INFO L85 PathProgramCache]: Analyzing trace with hash 670381395, now seen corresponding path program 176 times [2022-03-03 17:09:38,671 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:38,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200205139] [2022-03-03 17:09:38,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:38,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:39,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:39,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200205139] [2022-03-03 17:09:39,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200205139] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:39,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:39,007 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:39,007 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901664805] [2022-03-03 17:09:39,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:39,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:39,007 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:39,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:39,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:39,008 INFO L87 Difference]: Start difference. First operand 5543 states and 14529 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:41,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:41,160 INFO L93 Difference]: Finished difference Result 11066 states and 28982 transitions. [2022-03-03 17:09:41,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:09:41,160 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:41,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:41,175 INFO L225 Difference]: With dead ends: 11066 [2022-03-03 17:09:41,175 INFO L226 Difference]: Without dead ends: 10519 [2022-03-03 17:09:41,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=777, Invalid=2529, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:09:41,175 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1104 mSDsluCounter, 7064 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 7343 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:41,176 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 7343 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:09:41,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-03-03 17:09:41,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 5259. [2022-03-03 17:09:41,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5259 states, 5258 states have (on average 2.6222898440471663) internal successors, (13788), 5258 states have internal predecessors, (13788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5259 states to 5259 states and 13788 transitions. [2022-03-03 17:09:41,320 INFO L78 Accepts]: Start accepts. Automaton has 5259 states and 13788 transitions. Word has length 135 [2022-03-03 17:09:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:41,320 INFO L470 AbstractCegarLoop]: Abstraction has 5259 states and 13788 transitions. [2022-03-03 17:09:41,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:41,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5259 states and 13788 transitions. [2022-03-03 17:09:41,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:41,326 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:41,326 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:41,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-03 17:09:41,326 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:41,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:41,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1095253461, now seen corresponding path program 177 times [2022-03-03 17:09:41,326 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:41,326 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158496348] [2022-03-03 17:09:41,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:41,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:41,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:41,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:41,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158496348] [2022-03-03 17:09:41,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158496348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:41,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:41,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:41,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946781988] [2022-03-03 17:09:41,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:41,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:41,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:41,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:41,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:41,699 INFO L87 Difference]: Start difference. First operand 5259 states and 13788 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:44,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:44,857 INFO L93 Difference]: Finished difference Result 10666 states and 27918 transitions. [2022-03-03 17:09:44,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:09:44,858 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:44,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:44,871 INFO L225 Difference]: With dead ends: 10666 [2022-03-03 17:09:44,872 INFO L226 Difference]: Without dead ends: 10291 [2022-03-03 17:09:44,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1255, Invalid=4001, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:09:44,873 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1256 mSDsluCounter, 7123 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 7353 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:44,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1256 Valid, 7353 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1321 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:09:44,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10291 states. [2022-03-03 17:09:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10291 to 5295. [2022-03-03 17:09:44,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6208915753683417) internal successors, (13875), 5294 states have internal predecessors, (13875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:44,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13875 transitions. [2022-03-03 17:09:44,952 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13875 transitions. Word has length 135 [2022-03-03 17:09:44,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:44,952 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13875 transitions. [2022-03-03 17:09:44,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:44,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13875 transitions. [2022-03-03 17:09:44,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:44,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:44,957 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:44,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-03 17:09:44,957 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:44,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:44,957 INFO L85 PathProgramCache]: Analyzing trace with hash 144449589, now seen corresponding path program 178 times [2022-03-03 17:09:44,957 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:44,957 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401909027] [2022-03-03 17:09:44,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:44,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:45,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:45,357 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:45,357 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401909027] [2022-03-03 17:09:45,357 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401909027] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:45,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:45,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:45,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409447294] [2022-03-03 17:09:45,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:45,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:45,357 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:45,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:45,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:45,358 INFO L87 Difference]: Start difference. First operand 5295 states and 13875 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:47,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:47,607 INFO L93 Difference]: Finished difference Result 10526 states and 27541 transitions. [2022-03-03 17:09:47,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:09:47,607 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:47,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:47,619 INFO L225 Difference]: With dead ends: 10526 [2022-03-03 17:09:47,619 INFO L226 Difference]: Without dead ends: 10235 [2022-03-03 17:09:47,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1038, Invalid=3384, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:09:47,620 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1193 mSDsluCounter, 7040 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 7264 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:47,620 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1193 Valid, 7264 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:09:47,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10235 states. [2022-03-03 17:09:47,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10235 to 5299. [2022-03-03 17:09:47,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6202340505851263) internal successors, (13882), 5298 states have internal predecessors, (13882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13882 transitions. [2022-03-03 17:09:47,706 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13882 transitions. Word has length 135 [2022-03-03 17:09:47,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:47,706 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13882 transitions. [2022-03-03 17:09:47,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:47,706 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13882 transitions. [2022-03-03 17:09:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:47,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:47,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:47,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-03 17:09:47,712 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:47,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:47,712 INFO L85 PathProgramCache]: Analyzing trace with hash -147256439, now seen corresponding path program 179 times [2022-03-03 17:09:47,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:47,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548538530] [2022-03-03 17:09:47,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:47,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:47,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:47,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548538530] [2022-03-03 17:09:47,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548538530] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:47,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:47,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:47,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311047271] [2022-03-03 17:09:47,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:47,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:47,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:47,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:47,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:47,971 INFO L87 Difference]: Start difference. First operand 5299 states and 13882 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:49,521 INFO L93 Difference]: Finished difference Result 10388 states and 27169 transitions. [2022-03-03 17:09:49,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:09:49,522 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:49,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:49,536 INFO L225 Difference]: With dead ends: 10388 [2022-03-03 17:09:49,536 INFO L226 Difference]: Without dead ends: 10122 [2022-03-03 17:09:49,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=799, Invalid=2507, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:09:49,537 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1143 mSDsluCounter, 6892 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 7106 SdHoareTripleChecker+Invalid, 1301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:49,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 7106 Invalid, 1301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:49,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10122 states. [2022-03-03 17:09:49,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10122 to 5303. [2022-03-03 17:09:49,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.619577517917767) internal successors, (13889), 5302 states have internal predecessors, (13889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:49,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13889 transitions. [2022-03-03 17:09:49,633 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13889 transitions. Word has length 135 [2022-03-03 17:09:49,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:49,633 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13889 transitions. [2022-03-03 17:09:49,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13889 transitions. [2022-03-03 17:09:49,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:49,638 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:49,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:49,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-03 17:09:49,638 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:49,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:49,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1978862385, now seen corresponding path program 180 times [2022-03-03 17:09:49,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:49,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674728416] [2022-03-03 17:09:49,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:49,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:49,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:49,897 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:49,897 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674728416] [2022-03-03 17:09:49,897 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674728416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:49,897 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:49,897 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:49,897 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331955602] [2022-03-03 17:09:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:49,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:49,897 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:49,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:49,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:49,898 INFO L87 Difference]: Start difference. First operand 5303 states and 13889 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:51,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:51,593 INFO L93 Difference]: Finished difference Result 10370 states and 27124 transitions. [2022-03-03 17:09:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:09:51,593 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:51,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:51,603 INFO L225 Difference]: With dead ends: 10370 [2022-03-03 17:09:51,603 INFO L226 Difference]: Without dead ends: 10087 [2022-03-03 17:09:51,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=853, Invalid=2807, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:09:51,604 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1123 mSDsluCounter, 6966 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 7186 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:51,604 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 7186 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10087 states. [2022-03-03 17:09:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10087 to 5283. [2022-03-03 17:09:51,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5282 states have (on average 2.622112836046952) internal successors, (13850), 5282 states have internal predecessors, (13850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 13850 transitions. [2022-03-03 17:09:51,672 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 13850 transitions. Word has length 135 [2022-03-03 17:09:51,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:51,673 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 13850 transitions. [2022-03-03 17:09:51,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 13850 transitions. [2022-03-03 17:09:51,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:51,677 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:51,677 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:51,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-03 17:09:51,678 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:51,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:51,678 INFO L85 PathProgramCache]: Analyzing trace with hash 522463993, now seen corresponding path program 181 times [2022-03-03 17:09:51,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:51,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154600660] [2022-03-03 17:09:51,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:51,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:51,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:51,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154600660] [2022-03-03 17:09:51,932 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154600660] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:51,932 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:51,932 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:51,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291028544] [2022-03-03 17:09:51,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:51,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:51,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:51,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:51,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:51,933 INFO L87 Difference]: Start difference. First operand 5283 states and 13850 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:54,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:54,323 INFO L93 Difference]: Finished difference Result 10426 states and 27278 transitions. [2022-03-03 17:09:54,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:09:54,323 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:54,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:54,337 INFO L225 Difference]: With dead ends: 10426 [2022-03-03 17:09:54,337 INFO L226 Difference]: Without dead ends: 10019 [2022-03-03 17:09:54,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1424, Invalid=4276, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:09:54,354 INFO L933 BasicCegarLoop]: 409 mSDtfsCounter, 1367 mSDsluCounter, 7560 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 7779 SdHoareTripleChecker+Invalid, 1315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:54,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1367 Valid, 7779 Invalid, 1315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:54,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10019 states. [2022-03-03 17:09:54,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10019 to 5279. [2022-03-03 17:09:54,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 2.6220159151193636) internal successors, (13839), 5278 states have internal predecessors, (13839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:54,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 13839 transitions. [2022-03-03 17:09:54,522 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 13839 transitions. Word has length 135 [2022-03-03 17:09:54,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:54,522 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 13839 transitions. [2022-03-03 17:09:54,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 13839 transitions. [2022-03-03 17:09:54,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:54,528 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:54,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:54,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-03 17:09:54,528 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:54,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:54,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1045228823, now seen corresponding path program 182 times [2022-03-03 17:09:54,529 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:54,529 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977647682] [2022-03-03 17:09:54,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:54,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:54,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:54,795 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:54,795 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977647682] [2022-03-03 17:09:54,795 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977647682] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:54,795 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:54,795 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:54,795 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931025076] [2022-03-03 17:09:54,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:54,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:54,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:54,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:54,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:54,796 INFO L87 Difference]: Start difference. First operand 5279 states and 13839 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:56,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:56,939 INFO L93 Difference]: Finished difference Result 10634 states and 27830 transitions. [2022-03-03 17:09:56,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:09:56,939 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:56,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:56,954 INFO L225 Difference]: With dead ends: 10634 [2022-03-03 17:09:56,954 INFO L226 Difference]: Without dead ends: 10259 [2022-03-03 17:09:56,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1238, Invalid=3874, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:09:56,955 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1262 mSDsluCounter, 7063 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 7298 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:56,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 7298 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:56,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2022-03-03 17:09:57,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 5303. [2022-03-03 17:09:57,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.620331950207469) internal successors, (13893), 5302 states have internal predecessors, (13893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:57,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13893 transitions. [2022-03-03 17:09:57,059 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13893 transitions. Word has length 135 [2022-03-03 17:09:57,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:57,059 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13893 transitions. [2022-03-03 17:09:57,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:57,059 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13893 transitions. [2022-03-03 17:09:57,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:57,065 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:57,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:57,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-03 17:09:57,065 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:57,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash 194474227, now seen corresponding path program 183 times [2022-03-03 17:09:57,065 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:57,065 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253563056] [2022-03-03 17:09:57,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:57,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:57,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:57,344 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:57,344 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253563056] [2022-03-03 17:09:57,344 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253563056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:57,344 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:57,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:57,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745186323] [2022-03-03 17:09:57,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:57,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:57,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:57,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:57,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:57,345 INFO L87 Difference]: Start difference. First operand 5303 states and 13893 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:59,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:09:59,420 INFO L93 Difference]: Finished difference Result 10586 states and 27706 transitions. [2022-03-03 17:09:59,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:09:59,421 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:09:59,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:09:59,431 INFO L225 Difference]: With dead ends: 10586 [2022-03-03 17:09:59,432 INFO L226 Difference]: Without dead ends: 10295 [2022-03-03 17:09:59,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1048, Invalid=3374, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:09:59,432 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 1190 mSDsluCounter, 7022 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 7259 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:09:59,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1190 Valid, 7259 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:09:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-03-03 17:09:59,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5307. [2022-03-03 17:09:59,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.6196758386732) internal successors, (13900), 5306 states have internal predecessors, (13900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13900 transitions. [2022-03-03 17:09:59,521 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13900 transitions. Word has length 135 [2022-03-03 17:09:59,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:09:59,521 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13900 transitions. [2022-03-03 17:09:59,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:09:59,521 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13900 transitions. [2022-03-03 17:09:59,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:09:59,527 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:09:59,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:09:59,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-03 17:09:59,528 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:09:59,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:09:59,528 INFO L85 PathProgramCache]: Analyzing trace with hash -97231801, now seen corresponding path program 184 times [2022-03-03 17:09:59,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:09:59,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803337456] [2022-03-03 17:09:59,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:09:59,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:09:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:09:59,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:09:59,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:09:59,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803337456] [2022-03-03 17:09:59,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803337456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:09:59,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:09:59,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:09:59,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59987819] [2022-03-03 17:09:59,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:09:59,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:09:59,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:09:59,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:09:59,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:09:59,772 INFO L87 Difference]: Start difference. First operand 5307 states and 13900 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:01,351 INFO L93 Difference]: Finished difference Result 10472 states and 27400 transitions. [2022-03-03 17:10:01,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:10:01,351 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:01,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:01,367 INFO L225 Difference]: With dead ends: 10472 [2022-03-03 17:10:01,367 INFO L226 Difference]: Without dead ends: 10206 [2022-03-03 17:10:01,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=827, Invalid=2595, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:10:01,367 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1130 mSDsluCounter, 6958 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 7180 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:01,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 7180 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:01,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10206 states. [2022-03-03 17:10:01,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10206 to 5311. [2022-03-03 17:10:01,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.619020715630885) internal successors, (13907), 5310 states have internal predecessors, (13907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:01,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13907 transitions. [2022-03-03 17:10:01,464 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13907 transitions. Word has length 135 [2022-03-03 17:10:01,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:01,464 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13907 transitions. [2022-03-03 17:10:01,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:01,464 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13907 transitions. [2022-03-03 17:10:01,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:01,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:01,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:01,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-03 17:10:01,469 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:01,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:01,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2028887023, now seen corresponding path program 185 times [2022-03-03 17:10:01,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:01,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971909393] [2022-03-03 17:10:01,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:01,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:01,835 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:01,835 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971909393] [2022-03-03 17:10:01,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971909393] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:01,835 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:01,835 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:01,835 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141080648] [2022-03-03 17:10:01,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:01,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:01,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:01,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:01,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:01,836 INFO L87 Difference]: Start difference. First operand 5311 states and 13907 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:03,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:03,561 INFO L93 Difference]: Finished difference Result 10434 states and 27300 transitions. [2022-03-03 17:10:03,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:10:03,561 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:03,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:03,572 INFO L225 Difference]: With dead ends: 10434 [2022-03-03 17:10:03,572 INFO L226 Difference]: Without dead ends: 10151 [2022-03-03 17:10:03,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=857, Invalid=2803, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:10:03,573 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1126 mSDsluCounter, 6964 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 7199 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:03,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 7199 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:03,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10151 states. [2022-03-03 17:10:03,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10151 to 5291. [2022-03-03 17:10:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 2.620037807183365) internal successors, (13860), 5290 states have internal predecessors, (13860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:03,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 13860 transitions. [2022-03-03 17:10:03,641 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 13860 transitions. Word has length 135 [2022-03-03 17:10:03,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:03,641 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 13860 transitions. [2022-03-03 17:10:03,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 13860 transitions. [2022-03-03 17:10:03,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:03,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:03,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:03,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-03 17:10:03,646 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:03,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:03,646 INFO L85 PathProgramCache]: Analyzing trace with hash 728763641, now seen corresponding path program 186 times [2022-03-03 17:10:03,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:03,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116616152] [2022-03-03 17:10:03,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:03,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:03,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:03,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:03,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116616152] [2022-03-03 17:10:03,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116616152] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:03,910 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:03,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:03,911 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591148100] [2022-03-03 17:10:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:03,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:03,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:03,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:03,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:03,911 INFO L87 Difference]: Start difference. First operand 5291 states and 13860 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:05,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:05,797 INFO L93 Difference]: Finished difference Result 10494 states and 27453 transitions. [2022-03-03 17:10:05,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:10:05,798 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:05,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:05,812 INFO L225 Difference]: With dead ends: 10494 [2022-03-03 17:10:05,812 INFO L226 Difference]: Without dead ends: 10203 [2022-03-03 17:10:05,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1024, Invalid=3266, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:10:05,813 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1169 mSDsluCounter, 7385 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 7608 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:05,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 7608 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:05,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10203 states. [2022-03-03 17:10:05,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 5299. [2022-03-03 17:10:05,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6194790486976216) internal successors, (13878), 5298 states have internal predecessors, (13878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:05,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13878 transitions. [2022-03-03 17:10:05,911 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13878 transitions. Word has length 135 [2022-03-03 17:10:05,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:05,921 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13878 transitions. [2022-03-03 17:10:05,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:05,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13878 transitions. [2022-03-03 17:10:05,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:05,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:05,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:05,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-03 17:10:05,927 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:05,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:05,927 INFO L85 PathProgramCache]: Analyzing trace with hash 437057613, now seen corresponding path program 187 times [2022-03-03 17:10:05,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:05,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278286455] [2022-03-03 17:10:05,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:05,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:05,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:06,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:06,206 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278286455] [2022-03-03 17:10:06,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278286455] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:06,214 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:06,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:06,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409267366] [2022-03-03 17:10:06,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:06,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:06,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:06,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:06,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:06,215 INFO L87 Difference]: Start difference. First operand 5299 states and 13878 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:07,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:07,874 INFO L93 Difference]: Finished difference Result 10444 states and 27323 transitions. [2022-03-03 17:10:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:10:07,874 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:07,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:07,888 INFO L225 Difference]: With dead ends: 10444 [2022-03-03 17:10:07,888 INFO L226 Difference]: Without dead ends: 10178 [2022-03-03 17:10:07,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=853, Invalid=2687, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:10:07,888 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1153 mSDsluCounter, 6927 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:07,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 7146 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:07,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-03-03 17:10:07,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5303. [2022-03-03 17:10:07,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618823085628065) internal successors, (13885), 5302 states have internal predecessors, (13885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:07,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13885 transitions. [2022-03-03 17:10:07,977 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13885 transitions. Word has length 135 [2022-03-03 17:10:07,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:07,977 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13885 transitions. [2022-03-03 17:10:07,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:07,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13885 transitions. [2022-03-03 17:10:07,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:07,983 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:07,983 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:07,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-03 17:10:07,983 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:07,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:07,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1731790859, now seen corresponding path program 188 times [2022-03-03 17:10:07,983 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:07,983 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294613348] [2022-03-03 17:10:07,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:07,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:08,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:08,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:08,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294613348] [2022-03-03 17:10:08,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294613348] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:08,243 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:08,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:08,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032407304] [2022-03-03 17:10:08,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:08,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:08,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:08,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:08,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:08,243 INFO L87 Difference]: Start difference. First operand 5303 states and 13885 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:09,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:09,900 INFO L93 Difference]: Finished difference Result 10406 states and 27223 transitions. [2022-03-03 17:10:09,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:10:09,900 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:09,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:09,914 INFO L225 Difference]: With dead ends: 10406 [2022-03-03 17:10:09,914 INFO L226 Difference]: Without dead ends: 10135 [2022-03-03 17:10:09,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=863, Invalid=2797, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:10:09,915 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1126 mSDsluCounter, 6928 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 7155 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:09,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 7155 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:09,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10135 states. [2022-03-03 17:10:09,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10135 to 5295. [2022-03-03 17:10:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6193804306762374) internal successors, (13867), 5294 states have internal predecessors, (13867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:10,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13867 transitions. [2022-03-03 17:10:10,007 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13867 transitions. Word has length 135 [2022-03-03 17:10:10,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:10,007 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13867 transitions. [2022-03-03 17:10:10,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:10,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13867 transitions. [2022-03-03 17:10:10,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:10,013 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:10,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:10,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-03 17:10:10,013 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:10,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:10,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1359010693, now seen corresponding path program 189 times [2022-03-03 17:10:10,013 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:10,013 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380771895] [2022-03-03 17:10:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:10,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:10,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:10,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:10,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380771895] [2022-03-03 17:10:10,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380771895] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:10,438 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:10,439 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:10,439 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724639123] [2022-03-03 17:10:10,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:10,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:10,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:10,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:10,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:10,439 INFO L87 Difference]: Start difference. First operand 5295 states and 13867 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:12,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:12,423 INFO L93 Difference]: Finished difference Result 10476 states and 27386 transitions. [2022-03-03 17:10:12,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:10:12,424 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:12,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:12,438 INFO L225 Difference]: With dead ends: 10476 [2022-03-03 17:10:12,438 INFO L226 Difference]: Without dead ends: 10179 [2022-03-03 17:10:12,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=999, Invalid=3033, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:10:12,439 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1210 mSDsluCounter, 6934 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 7153 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:12,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 7153 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:10:12,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10179 states. [2022-03-03 17:10:12,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10179 to 5299. [2022-03-03 17:10:12,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.618724046810117) internal successors, (13874), 5298 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:12,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13874 transitions. [2022-03-03 17:10:12,541 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13874 transitions. Word has length 135 [2022-03-03 17:10:12,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:12,541 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13874 transitions. [2022-03-03 17:10:12,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13874 transitions. [2022-03-03 17:10:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:12,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:12,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:12,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-03 17:10:12,547 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:12,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:12,547 INFO L85 PathProgramCache]: Analyzing trace with hash 519378823, now seen corresponding path program 190 times [2022-03-03 17:10:12,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:12,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049289177] [2022-03-03 17:10:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:12,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:12,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:12,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:12,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049289177] [2022-03-03 17:10:12,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049289177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:12,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:12,830 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:12,830 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078537714] [2022-03-03 17:10:12,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:12,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:12,830 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:12,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:12,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:12,830 INFO L87 Difference]: Start difference. First operand 5299 states and 13874 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:14,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:14,872 INFO L93 Difference]: Finished difference Result 10384 states and 27154 transitions. [2022-03-03 17:10:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:10:14,872 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:14,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:14,885 INFO L225 Difference]: With dead ends: 10384 [2022-03-03 17:10:14,885 INFO L226 Difference]: Without dead ends: 10118 [2022-03-03 17:10:14,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=885, Invalid=2775, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:10:14,886 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1150 mSDsluCounter, 6923 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 7142 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:14,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 7142 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1319 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:10:14,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2022-03-03 17:10:14,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 5303. [2022-03-03 17:10:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618068653338363) internal successors, (13881), 5302 states have internal predecessors, (13881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:14,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13881 transitions. [2022-03-03 17:10:14,983 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13881 transitions. Word has length 135 [2022-03-03 17:10:14,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:14,983 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13881 transitions. [2022-03-03 17:10:14,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:14,983 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13881 transitions. [2022-03-03 17:10:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:14,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:14,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:14,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-03 17:10:14,988 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:14,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:14,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1649469649, now seen corresponding path program 191 times [2022-03-03 17:10:14,989 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:14,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896325109] [2022-03-03 17:10:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:14,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:14,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:15,343 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:15,343 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896325109] [2022-03-03 17:10:15,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896325109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:15,343 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:15,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:15,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863917820] [2022-03-03 17:10:15,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:15,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:15,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:15,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:15,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:15,344 INFO L87 Difference]: Start difference. First operand 5303 states and 13881 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:17,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:17,357 INFO L93 Difference]: Finished difference Result 10306 states and 26944 transitions. [2022-03-03 17:10:17,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:10:17,358 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:17,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:17,371 INFO L225 Difference]: With dead ends: 10306 [2022-03-03 17:10:17,371 INFO L226 Difference]: Without dead ends: 10015 [2022-03-03 17:10:17,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=833, Invalid=2707, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:10:17,372 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1116 mSDsluCounter, 6874 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 7099 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:17,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 7099 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:17,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10015 states. [2022-03-03 17:10:17,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10015 to 5275. [2022-03-03 17:10:17,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 2.62191884717482) internal successors, (13828), 5274 states have internal predecessors, (13828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:17,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 13828 transitions. [2022-03-03 17:10:17,451 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 13828 transitions. Word has length 135 [2022-03-03 17:10:17,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:17,451 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 13828 transitions. [2022-03-03 17:10:17,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:17,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 13828 transitions. [2022-03-03 17:10:17,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:17,456 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:17,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:17,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-03 17:10:17,456 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:17,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:17,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1340234889, now seen corresponding path program 192 times [2022-03-03 17:10:17,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:17,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635869861] [2022-03-03 17:10:17,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:17,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:17,844 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:17,844 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635869861] [2022-03-03 17:10:17,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635869861] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:17,844 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:17,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:17,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702518605] [2022-03-03 17:10:17,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:17,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:17,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:17,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:17,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:17,845 INFO L87 Difference]: Start difference. First operand 5275 states and 13828 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:20,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:20,821 INFO L93 Difference]: Finished difference Result 10738 states and 28116 transitions. [2022-03-03 17:10:20,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 17:10:20,821 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:20,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:20,833 INFO L225 Difference]: With dead ends: 10738 [2022-03-03 17:10:20,833 INFO L226 Difference]: Without dead ends: 10363 [2022-03-03 17:10:20,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1220, Invalid=3750, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 17:10:20,834 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1255 mSDsluCounter, 6966 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 7211 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:20,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1255 Valid, 7211 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:10:20,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-03-03 17:10:20,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5335. [2022-03-03 17:10:20,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6211098612673416) internal successors, (13981), 5334 states have internal predecessors, (13981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:20,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13981 transitions. [2022-03-03 17:10:20,914 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13981 transitions. Word has length 135 [2022-03-03 17:10:20,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:20,914 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13981 transitions. [2022-03-03 17:10:20,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13981 transitions. [2022-03-03 17:10:20,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:20,919 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:20,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:20,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-03 17:10:20,919 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:20,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:20,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1715029357, now seen corresponding path program 193 times [2022-03-03 17:10:20,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:20,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057748519] [2022-03-03 17:10:20,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:20,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:21,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:21,293 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:21,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057748519] [2022-03-03 17:10:21,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057748519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:21,293 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:21,293 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:21,293 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99298900] [2022-03-03 17:10:21,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:21,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:21,293 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:21,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:21,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:21,294 INFO L87 Difference]: Start difference. First operand 5335 states and 13981 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:23,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:23,989 INFO L93 Difference]: Finished difference Result 10714 states and 28058 transitions. [2022-03-03 17:10:23,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:10:23,990 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:23,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:24,004 INFO L225 Difference]: With dead ends: 10714 [2022-03-03 17:10:24,005 INFO L226 Difference]: Without dead ends: 10423 [2022-03-03 17:10:24,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1060, Invalid=3362, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:10:24,005 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1196 mSDsluCounter, 6945 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 7190 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:24,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 7190 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:10:24,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2022-03-03 17:10:24,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5339. [2022-03-03 17:10:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6204571000374672) internal successors, (13988), 5338 states have internal predecessors, (13988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:24,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13988 transitions. [2022-03-03 17:10:24,101 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13988 transitions. Word has length 135 [2022-03-03 17:10:24,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:24,101 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13988 transitions. [2022-03-03 17:10:24,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:24,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13988 transitions. [2022-03-03 17:10:24,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:24,107 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:24,107 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:24,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-03 17:10:24,107 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:24,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:24,108 INFO L85 PathProgramCache]: Analyzing trace with hash -2006735385, now seen corresponding path program 194 times [2022-03-03 17:10:24,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:24,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059051541] [2022-03-03 17:10:24,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:24,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:24,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:24,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059051541] [2022-03-03 17:10:24,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059051541] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:24,495 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:24,495 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:24,495 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119385875] [2022-03-03 17:10:24,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:24,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:24,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:24,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:24,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:24,495 INFO L87 Difference]: Start difference. First operand 5339 states and 13988 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:26,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:26,434 INFO L93 Difference]: Finished difference Result 10600 states and 27752 transitions. [2022-03-03 17:10:26,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:10:26,434 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:26,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:26,447 INFO L225 Difference]: With dead ends: 10600 [2022-03-03 17:10:26,447 INFO L226 Difference]: Without dead ends: 10334 [2022-03-03 17:10:26,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=822, Invalid=2600, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:10:26,448 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1128 mSDsluCounter, 6536 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 6775 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:26,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 6775 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:10:26,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10334 states. [2022-03-03 17:10:26,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10334 to 5343. [2022-03-03 17:10:26,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6198053163609134) internal successors, (13995), 5342 states have internal predecessors, (13995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:26,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13995 transitions. [2022-03-03 17:10:26,535 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13995 transitions. Word has length 135 [2022-03-03 17:10:26,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:26,535 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13995 transitions. [2022-03-03 17:10:26,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:26,535 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13995 transitions. [2022-03-03 17:10:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:26,540 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:26,540 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:26,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-03 17:10:26,541 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:26,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:26,541 INFO L85 PathProgramCache]: Analyzing trace with hash 119383439, now seen corresponding path program 195 times [2022-03-03 17:10:26,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:26,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957253894] [2022-03-03 17:10:26,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:26,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:26,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:26,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:26,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957253894] [2022-03-03 17:10:26,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957253894] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:26,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:26,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:26,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896983495] [2022-03-03 17:10:26,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:26,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:26,810 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:26,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:26,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:26,811 INFO L87 Difference]: Start difference. First operand 5343 states and 13995 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:28,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:28,945 INFO L93 Difference]: Finished difference Result 10562 states and 27652 transitions. [2022-03-03 17:10:28,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:10:28,945 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:28,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:28,959 INFO L225 Difference]: With dead ends: 10562 [2022-03-03 17:10:28,959 INFO L226 Difference]: Without dead ends: 10279 [2022-03-03 17:10:28,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:10:28,960 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1119 mSDsluCounter, 6183 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 6441 SdHoareTripleChecker+Invalid, 1240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:28,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 6441 Invalid, 1240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:28,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2022-03-03 17:10:29,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 5323. [2022-03-03 17:10:29,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6208192408868847) internal successors, (13948), 5322 states have internal predecessors, (13948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:29,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13948 transitions. [2022-03-03 17:10:29,046 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13948 transitions. Word has length 135 [2022-03-03 17:10:29,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:29,046 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13948 transitions. [2022-03-03 17:10:29,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:29,046 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13948 transitions. [2022-03-03 17:10:29,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:29,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:29,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:29,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-03 17:10:29,052 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:29,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:29,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1180739943, now seen corresponding path program 196 times [2022-03-03 17:10:29,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:29,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179938468] [2022-03-03 17:10:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:29,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:29,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:29,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:29,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179938468] [2022-03-03 17:10:29,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179938468] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:29,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:29,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:29,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934628983] [2022-03-03 17:10:29,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:29,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:29,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:29,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:29,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:29,455 INFO L87 Difference]: Start difference. First operand 5323 states and 13948 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:32,256 INFO L93 Difference]: Finished difference Result 10722 states and 28080 transitions. [2022-03-03 17:10:32,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:10:32,256 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:32,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:32,269 INFO L225 Difference]: With dead ends: 10722 [2022-03-03 17:10:32,269 INFO L226 Difference]: Without dead ends: 10431 [2022-03-03 17:10:32,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1034, Invalid=3256, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:10:32,270 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1181 mSDsluCounter, 7315 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 7548 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:32,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1181 Valid, 7548 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:10:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2022-03-03 17:10:32,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 5331. [2022-03-03 17:10:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:32,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-03-03 17:10:32,358 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-03-03 17:10:32,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:32,358 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-03-03 17:10:32,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:32,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-03-03 17:10:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:32,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:32,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:32,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-03 17:10:32,363 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:32,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1472445971, now seen corresponding path program 197 times [2022-03-03 17:10:32,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:32,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081796892] [2022-03-03 17:10:32,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:32,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:32,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:32,714 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:32,714 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081796892] [2022-03-03 17:10:32,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081796892] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:32,714 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:32,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:32,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234943437] [2022-03-03 17:10:32,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:32,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:32,714 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:32,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:32,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:32,715 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:34,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:34,386 INFO L93 Difference]: Finished difference Result 10672 states and 27950 transitions. [2022-03-03 17:10:34,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:10:34,386 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:34,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:34,401 INFO L225 Difference]: With dead ends: 10672 [2022-03-03 17:10:34,401 INFO L226 Difference]: Without dead ends: 10406 [2022-03-03 17:10:34,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=848, Invalid=2692, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:10:34,402 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1125 mSDsluCounter, 7304 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 7525 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:34,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 7525 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:34,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2022-03-03 17:10:34,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 5335. [2022-03-03 17:10:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-03-03 17:10:34,495 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-03-03 17:10:34,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:34,495 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-03-03 17:10:34,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:34,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-03-03 17:10:34,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:34,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:34,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:34,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-03 17:10:34,501 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:34,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:34,502 INFO L85 PathProgramCache]: Analyzing trace with hash 653672853, now seen corresponding path program 198 times [2022-03-03 17:10:34,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:34,502 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034929014] [2022-03-03 17:10:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:34,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:34,837 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:34,837 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034929014] [2022-03-03 17:10:34,837 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034929014] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:34,837 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:34,837 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:34,837 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119179355] [2022-03-03 17:10:34,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:34,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:34,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:34,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:34,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:34,838 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:36,553 INFO L93 Difference]: Finished difference Result 10634 states and 27850 transitions. [2022-03-03 17:10:36,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:10:36,553 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:36,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:36,568 INFO L225 Difference]: With dead ends: 10634 [2022-03-03 17:10:36,569 INFO L226 Difference]: Without dead ends: 10363 [2022-03-03 17:10:36,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=867, Invalid=2793, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:10:36,569 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1130 mSDsluCounter, 6881 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 7124 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:36,569 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 7124 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:36,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-03-03 17:10:36,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5327. [2022-03-03 17:10:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:36,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-03-03 17:10:36,667 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-03-03 17:10:36,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:36,667 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-03-03 17:10:36,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:36,667 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-03-03 17:10:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:36,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:36,673 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:36,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-03 17:10:36,673 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:36,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1026453019, now seen corresponding path program 199 times [2022-03-03 17:10:36,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:36,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870353448] [2022-03-03 17:10:36,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:36,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:36,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:36,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:36,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870353448] [2022-03-03 17:10:36,942 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870353448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:36,942 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:36,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:36,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565177400] [2022-03-03 17:10:36,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:36,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:36,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:36,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:36,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:36,942 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:38,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:38,849 INFO L93 Difference]: Finished difference Result 10724 states and 28068 transitions. [2022-03-03 17:10:38,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:10:38,849 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:38,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:38,860 INFO L225 Difference]: With dead ends: 10724 [2022-03-03 17:10:38,860 INFO L226 Difference]: Without dead ends: 10427 [2022-03-03 17:10:38,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1021, Invalid=3139, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:10:38,861 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1196 mSDsluCounter, 6979 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 7203 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:38,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 7203 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:38,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10427 states. [2022-03-03 17:10:38,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10427 to 5331. [2022-03-03 17:10:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:38,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-03-03 17:10:38,935 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-03-03 17:10:38,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:38,935 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-03-03 17:10:38,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:38,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-03-03 17:10:38,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:38,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:38,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:38,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-03 17:10:38,940 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:38,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:38,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1390124761, now seen corresponding path program 200 times [2022-03-03 17:10:38,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:38,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158860371] [2022-03-03 17:10:38,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:38,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:39,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:39,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158860371] [2022-03-03 17:10:39,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158860371] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:39,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:39,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:39,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340226992] [2022-03-03 17:10:39,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:39,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:39,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:39,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:39,341 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:41,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:41,451 INFO L93 Difference]: Finished difference Result 10624 states and 27814 transitions. [2022-03-03 17:10:41,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:10:41,452 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:41,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:41,466 INFO L225 Difference]: With dead ends: 10624 [2022-03-03 17:10:41,466 INFO L226 Difference]: Without dead ends: 10358 [2022-03-03 17:10:41,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=878, Invalid=2782, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:10:41,467 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1133 mSDsluCounter, 7298 mSDsCounter, 0 mSdLazyCounter, 1435 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 7519 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:41,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 7519 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1435 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:10:41,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10358 states. [2022-03-03 17:10:41,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10358 to 5335. [2022-03-03 17:10:41,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:41,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-03-03 17:10:41,560 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-03-03 17:10:41,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:41,560 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-03-03 17:10:41,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-03-03 17:10:41,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:41,565 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:41,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:41,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-03 17:10:41,565 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:41,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:41,566 INFO L85 PathProgramCache]: Analyzing trace with hash 735994063, now seen corresponding path program 201 times [2022-03-03 17:10:41,566 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:41,566 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457657703] [2022-03-03 17:10:41,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:41,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:41,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:41,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457657703] [2022-03-03 17:10:41,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457657703] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:41,848 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:41,848 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:41,848 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844947805] [2022-03-03 17:10:41,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:41,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:41,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:41,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:41,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:41,849 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:44,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:44,046 INFO L93 Difference]: Finished difference Result 10554 states and 27626 transitions. [2022-03-03 17:10:44,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:10:44,047 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:44,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:44,059 INFO L225 Difference]: With dead ends: 10554 [2022-03-03 17:10:44,059 INFO L226 Difference]: Without dead ends: 10267 [2022-03-03 17:10:44,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=838, Invalid=2702, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:10:44,059 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1113 mSDsluCounter, 7235 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 7464 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:44,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 7464 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:10:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10267 states. [2022-03-03 17:10:44,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10267 to 5311. [2022-03-03 17:10:44,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.620527306967985) internal successors, (13915), 5310 states have internal predecessors, (13915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13915 transitions. [2022-03-03 17:10:44,142 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13915 transitions. Word has length 135 [2022-03-03 17:10:44,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:44,142 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13915 transitions. [2022-03-03 17:10:44,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13915 transitions. [2022-03-03 17:10:44,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:44,148 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:44,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:44,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-03 17:10:44,148 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:44,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:44,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1794756299, now seen corresponding path program 202 times [2022-03-03 17:10:44,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:44,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422896079] [2022-03-03 17:10:44,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:44,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:44,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:44,419 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:44,419 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422896079] [2022-03-03 17:10:44,419 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422896079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:44,419 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:44,419 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:44,419 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50747548] [2022-03-03 17:10:44,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:44,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:44,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:44,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:44,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:44,420 INFO L87 Difference]: Start difference. First operand 5311 states and 13915 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:46,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:46,692 INFO L93 Difference]: Finished difference Result 10590 states and 27717 transitions. [2022-03-03 17:10:46,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:10:46,692 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:46,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:46,706 INFO L225 Difference]: With dead ends: 10590 [2022-03-03 17:10:46,707 INFO L226 Difference]: Without dead ends: 10299 [2022-03-03 17:10:46,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1011, Invalid=3149, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:10:46,707 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1163 mSDsluCounter, 7288 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 7519 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:46,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 7519 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:46,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2022-03-03 17:10:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5331. [2022-03-03 17:10:46,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-03-03 17:10:46,802 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-03-03 17:10:46,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:46,802 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-03-03 17:10:46,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:46,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-03-03 17:10:46,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:46,808 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:46,808 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] [2022-03-03 17:10:46,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-03 17:10:46,808 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:46,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:46,809 INFO L85 PathProgramCache]: Analyzing trace with hash -2086462327, now seen corresponding path program 203 times [2022-03-03 17:10:46,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:46,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496945653] [2022-03-03 17:10:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:46,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:47,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:47,174 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:47,174 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496945653] [2022-03-03 17:10:47,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496945653] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:47,174 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:47,174 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:47,174 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402288514] [2022-03-03 17:10:47,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:47,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:47,174 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:47,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:47,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:47,175 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:48,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:48,963 INFO L93 Difference]: Finished difference Result 10556 states and 27631 transitions. [2022-03-03 17:10:48,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:10:48,964 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:48,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:48,976 INFO L225 Difference]: With dead ends: 10556 [2022-03-03 17:10:48,976 INFO L226 Difference]: Without dead ends: 10290 [2022-03-03 17:10:48,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:10:48,977 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1128 mSDsluCounter, 7630 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1128 SdHoareTripleChecker+Valid, 7834 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:48,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1128 Valid, 7834 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1501 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:10:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10290 states. [2022-03-03 17:10:49,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10290 to 5335. [2022-03-03 17:10:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:49,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-03-03 17:10:49,049 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-03-03 17:10:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:49,049 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-03-03 17:10:49,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-03-03 17:10:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:49,054 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:49,054 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:49,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2022-03-03 17:10:49,055 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:49,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:49,056 INFO L85 PathProgramCache]: Analyzing trace with hash 39656497, now seen corresponding path program 204 times [2022-03-03 17:10:49,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:49,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111011743] [2022-03-03 17:10:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:49,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:49,407 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:49,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111011743] [2022-03-03 17:10:49,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111011743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:49,407 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:49,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:49,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440831954] [2022-03-03 17:10:49,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:49,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:49,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:49,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:49,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:49,409 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:51,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:51,682 INFO L93 Difference]: Finished difference Result 10518 states and 27531 transitions. [2022-03-03 17:10:51,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:10:51,683 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:51,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:51,698 INFO L225 Difference]: With dead ends: 10518 [2022-03-03 17:10:51,698 INFO L226 Difference]: Without dead ends: 10247 [2022-03-03 17:10:51,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=872, Invalid=2788, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:10:51,699 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1133 mSDsluCounter, 6819 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 7055 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:51,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 7055 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:10:51,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10247 states. [2022-03-03 17:10:51,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10247 to 5327. [2022-03-03 17:10:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-03-03 17:10:51,790 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-03-03 17:10:51,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:51,790 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-03-03 17:10:51,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:51,794 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-03-03 17:10:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:51,800 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:51,800 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:51,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2022-03-03 17:10:51,802 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:51,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:51,809 INFO L85 PathProgramCache]: Analyzing trace with hash 412436663, now seen corresponding path program 205 times [2022-03-03 17:10:51,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:51,814 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333287849] [2022-03-03 17:10:51,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:52,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:52,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:52,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333287849] [2022-03-03 17:10:52,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333287849] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:52,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:52,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:52,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390919803] [2022-03-03 17:10:52,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:52,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:52,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:52,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:52,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:52,231 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:55,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:55,033 INFO L93 Difference]: Finished difference Result 10688 states and 27969 transitions. [2022-03-03 17:10:55,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:10:55,034 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:55,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:55,053 INFO L225 Difference]: With dead ends: 10688 [2022-03-03 17:10:55,054 INFO L226 Difference]: Without dead ends: 10391 [2022-03-03 17:10:55,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1044, Invalid=3246, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:10:55,056 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1200 mSDsluCounter, 7330 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1200 SdHoareTripleChecker+Valid, 7537 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:55,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1200 Valid, 7537 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:10:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10391 states. [2022-03-03 17:10:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10391 to 5331. [2022-03-03 17:10:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-03-03 17:10:55,157 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-03-03 17:10:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:55,157 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-03-03 17:10:55,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:55,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-03-03 17:10:55,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:55,163 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:55,163 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:55,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2022-03-03 17:10:55,166 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:55,166 INFO L85 PathProgramCache]: Analyzing trace with hash -2004141117, now seen corresponding path program 206 times [2022-03-03 17:10:55,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:55,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159999920] [2022-03-03 17:10:55,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:55,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:55,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:55,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:55,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159999920] [2022-03-03 17:10:55,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159999920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:55,565 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:55,565 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:55,565 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106679854] [2022-03-03 17:10:55,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:55,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:55,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:55,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:55,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:55,566 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:58,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:10:58,031 INFO L93 Difference]: Finished difference Result 10572 states and 27671 transitions. [2022-03-03 17:10:58,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:10:58,031 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:10:58,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:10:58,046 INFO L225 Difference]: With dead ends: 10572 [2022-03-03 17:10:58,046 INFO L226 Difference]: Without dead ends: 10306 [2022-03-03 17:10:58,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:10:58,046 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1154 mSDsluCounter, 6852 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 7078 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:10:58,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 7078 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:10:58,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10306 states. [2022-03-03 17:10:58,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10306 to 5335. [2022-03-03 17:10:58,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:58,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-03-03 17:10:58,138 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-03-03 17:10:58,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:10:58,138 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-03-03 17:10:58,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:10:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-03-03 17:10:58,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:10:58,144 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:10:58,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:10:58,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2022-03-03 17:10:58,144 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:10:58,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:10:58,144 INFO L85 PathProgramCache]: Analyzing trace with hash 121977707, now seen corresponding path program 207 times [2022-03-03 17:10:58,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:10:58,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814080000] [2022-03-03 17:10:58,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:10:58,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:10:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:10:58,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:10:58,578 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:10:58,578 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814080000] [2022-03-03 17:10:58,578 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814080000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:10:58,578 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:10:58,578 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:10:58,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915928266] [2022-03-03 17:10:58,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:10:58,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:10:58,578 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:10:58,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:10:58,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:10:58,579 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:00,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:00,330 INFO L93 Difference]: Finished difference Result 10518 states and 27527 transitions. [2022-03-03 17:11:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:11:00,331 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:00,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:00,346 INFO L225 Difference]: With dead ends: 10518 [2022-03-03 17:11:00,346 INFO L226 Difference]: Without dead ends: 10243 [2022-03-03 17:11:00,347 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=845, Invalid=2695, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:11:00,347 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1124 mSDsluCounter, 6430 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 6670 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:00,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 6670 Invalid, 1268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:00,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10243 states. [2022-03-03 17:11:00,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10243 to 5323. [2022-03-03 17:11:00,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6200676437429538) internal successors, (13944), 5322 states have internal predecessors, (13944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13944 transitions. [2022-03-03 17:11:00,447 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13944 transitions. Word has length 135 [2022-03-03 17:11:00,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:00,447 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13944 transitions. [2022-03-03 17:11:00,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:00,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13944 transitions. [2022-03-03 17:11:00,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:00,452 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:00,452 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:00,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2022-03-03 17:11:00,452 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:00,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:00,452 INFO L85 PathProgramCache]: Analyzing trace with hash -497328345, now seen corresponding path program 208 times [2022-03-03 17:11:00,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:00,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641881976] [2022-03-03 17:11:00,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:00,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:00,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:00,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:00,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641881976] [2022-03-03 17:11:00,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641881976] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:00,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:00,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:00,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717223354] [2022-03-03 17:11:00,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:00,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:00,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:00,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:00,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:00,732 INFO L87 Difference]: Start difference. First operand 5323 states and 13944 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:02,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:02,901 INFO L93 Difference]: Finished difference Result 10675 states and 27902 transitions. [2022-03-03 17:11:02,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 17:11:02,901 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:02,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:02,914 INFO L225 Difference]: With dead ends: 10675 [2022-03-03 17:11:02,914 INFO L226 Difference]: Without dead ends: 10285 [2022-03-03 17:11:02,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 624 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1202, Invalid=3628, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 17:11:02,914 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1290 mSDsluCounter, 6954 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 7176 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:02,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1290 Valid, 7176 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:11:02,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2022-03-03 17:11:02,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 5335. [2022-03-03 17:11:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:03,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-03-03 17:11:03,000 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-03-03 17:11:03,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:03,001 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-03-03 17:11:03,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:03,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-03-03 17:11:03,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:03,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:03,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:03,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2022-03-03 17:11:03,007 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:03,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:03,007 INFO L85 PathProgramCache]: Analyzing trace with hash -890793381, now seen corresponding path program 209 times [2022-03-03 17:11:03,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:03,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790862685] [2022-03-03 17:11:03,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:03,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:03,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:03,263 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:03,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790862685] [2022-03-03 17:11:03,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790862685] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:03,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:03,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:03,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985925235] [2022-03-03 17:11:03,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:03,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:03,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:03,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:03,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:03,264 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:05,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:05,241 INFO L93 Difference]: Finished difference Result 10536 states and 27539 transitions. [2022-03-03 17:11:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:11:05,242 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:05,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:05,256 INFO L225 Difference]: With dead ends: 10536 [2022-03-03 17:11:05,256 INFO L226 Difference]: Without dead ends: 10239 [2022-03-03 17:11:05,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1068, Invalid=3354, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:11:05,257 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1222 mSDsluCounter, 6939 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 7159 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:05,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1222 Valid, 7159 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:11:05,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10239 states. [2022-03-03 17:11:05,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10239 to 5339. [2022-03-03 17:11:05,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6174597227426) internal successors, (13972), 5338 states have internal predecessors, (13972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:05,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13972 transitions. [2022-03-03 17:11:05,357 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13972 transitions. Word has length 135 [2022-03-03 17:11:05,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:05,357 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13972 transitions. [2022-03-03 17:11:05,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:05,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13972 transitions. [2022-03-03 17:11:05,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:05,363 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:05,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:05,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2022-03-03 17:11:05,364 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:05,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:05,364 INFO L85 PathProgramCache]: Analyzing trace with hash 987596135, now seen corresponding path program 210 times [2022-03-03 17:11:05,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:05,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850766177] [2022-03-03 17:11:05,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:05,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:05,631 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:05,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850766177] [2022-03-03 17:11:05,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850766177] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:05,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:05,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:05,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599861923] [2022-03-03 17:11:05,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:05,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:05,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:05,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:05,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:05,632 INFO L87 Difference]: Start difference. First operand 5339 states and 13972 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:07,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:07,322 INFO L93 Difference]: Finished difference Result 10444 states and 27307 transitions. [2022-03-03 17:11:07,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:11:07,322 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:07,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:07,335 INFO L225 Difference]: With dead ends: 10444 [2022-03-03 17:11:07,335 INFO L226 Difference]: Without dead ends: 10178 [2022-03-03 17:11:07,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:11:07,336 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1149 mSDsluCounter, 7214 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 7426 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:07,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 7426 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:11:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10178 states. [2022-03-03 17:11:07,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10178 to 5343. [2022-03-03 17:11:07,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6168101834518906) internal successors, (13979), 5342 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:07,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13979 transitions. [2022-03-03 17:11:07,431 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13979 transitions. Word has length 135 [2022-03-03 17:11:07,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:07,431 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13979 transitions. [2022-03-03 17:11:07,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:07,431 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13979 transitions. [2022-03-03 17:11:07,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:07,437 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:07,437 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:07,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2022-03-03 17:11:07,437 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:07,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:07,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1181252337, now seen corresponding path program 211 times [2022-03-03 17:11:07,438 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:07,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658012831] [2022-03-03 17:11:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:07,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:07,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:07,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:07,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658012831] [2022-03-03 17:11:07,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658012831] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:07,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:07,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:07,730 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127655229] [2022-03-03 17:11:07,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:07,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:07,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:07,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:07,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:07,731 INFO L87 Difference]: Start difference. First operand 5343 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:09,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:09,856 INFO L93 Difference]: Finished difference Result 10346 states and 27042 transitions. [2022-03-03 17:11:09,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:11:09,856 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:09,871 INFO L225 Difference]: With dead ends: 10346 [2022-03-03 17:11:09,871 INFO L226 Difference]: Without dead ends: 10003 [2022-03-03 17:11:09,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=814, Invalid=2608, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:11:09,871 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1113 mSDsluCounter, 7143 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 7362 SdHoareTripleChecker+Invalid, 1377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:09,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1113 Valid, 7362 Invalid, 1377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:11:09,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10003 states. [2022-03-03 17:11:09,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10003 to 5263. [2022-03-03 17:11:09,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5263 states, 5262 states have (on average 2.621626757886735) internal successors, (13795), 5262 states have internal predecessors, (13795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:09,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 13795 transitions. [2022-03-03 17:11:09,964 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 13795 transitions. Word has length 135 [2022-03-03 17:11:09,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:09,964 INFO L470 AbstractCegarLoop]: Abstraction has 5263 states and 13795 transitions. [2022-03-03 17:11:09,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 13795 transitions. [2022-03-03 17:11:09,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:09,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:09,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:09,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2022-03-03 17:11:09,970 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:09,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:09,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1540745765, now seen corresponding path program 212 times [2022-03-03 17:11:09,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:09,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448879913] [2022-03-03 17:11:09,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:09,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:10,383 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:10,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448879913] [2022-03-03 17:11:10,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448879913] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:10,383 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:10,383 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:10,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935250354] [2022-03-03 17:11:10,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:10,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:10,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:10,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:10,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:10,384 INFO L87 Difference]: Start difference. First operand 5263 states and 13795 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:13,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:13,163 INFO L93 Difference]: Finished difference Result 10762 states and 28182 transitions. [2022-03-03 17:11:13,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 17:11:13,163 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:13,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:13,177 INFO L225 Difference]: With dead ends: 10762 [2022-03-03 17:11:13,177 INFO L226 Difference]: Without dead ends: 10387 [2022-03-03 17:11:13,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1202, Invalid=3628, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 17:11:13,178 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1234 mSDsluCounter, 7281 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 7526 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:13,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1234 Valid, 7526 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1406 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:11:13,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10387 states. [2022-03-03 17:11:13,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10387 to 5335. [2022-03-03 17:11:13,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6211098612673416) internal successors, (13981), 5334 states have internal predecessors, (13981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:13,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13981 transitions. [2022-03-03 17:11:13,270 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13981 transitions. Word has length 135 [2022-03-03 17:11:13,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:13,270 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13981 transitions. [2022-03-03 17:11:13,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:13,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13981 transitions. [2022-03-03 17:11:13,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:13,276 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:13,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:13,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2022-03-03 17:11:13,276 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:13,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:13,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1514518481, now seen corresponding path program 213 times [2022-03-03 17:11:13,277 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:13,277 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994431056] [2022-03-03 17:11:13,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:13,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:13,679 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:13,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994431056] [2022-03-03 17:11:13,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994431056] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:13,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:13,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:13,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795161049] [2022-03-03 17:11:13,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:13,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:13,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:13,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:13,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:13,680 INFO L87 Difference]: Start difference. First operand 5335 states and 13981 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:16,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:16,451 INFO L93 Difference]: Finished difference Result 10810 states and 28298 transitions. [2022-03-03 17:11:16,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:11:16,452 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:16,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:16,467 INFO L225 Difference]: With dead ends: 10810 [2022-03-03 17:11:16,467 INFO L226 Difference]: Without dead ends: 10519 [2022-03-03 17:11:16,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1068, Invalid=3354, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:11:16,468 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1204 mSDsluCounter, 6873 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 7127 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:16,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1204 Valid, 7127 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:16,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-03-03 17:11:16,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 5339. [2022-03-03 17:11:16,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6204571000374672) internal successors, (13988), 5338 states have internal predecessors, (13988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:16,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13988 transitions. [2022-03-03 17:11:16,583 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13988 transitions. Word has length 135 [2022-03-03 17:11:16,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:16,583 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13988 transitions. [2022-03-03 17:11:16,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13988 transitions. [2022-03-03 17:11:16,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:16,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:16,589 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] [2022-03-03 17:11:16,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2022-03-03 17:11:16,589 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:16,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1806224509, now seen corresponding path program 214 times [2022-03-03 17:11:16,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:16,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565009425] [2022-03-03 17:11:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:16,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:16,988 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:16,988 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565009425] [2022-03-03 17:11:16,988 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565009425] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:16,988 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:16,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:16,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707306718] [2022-03-03 17:11:16,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:16,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:16,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:16,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:16,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:16,988 INFO L87 Difference]: Start difference. First operand 5339 states and 13988 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:19,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:19,299 INFO L93 Difference]: Finished difference Result 10696 states and 27992 transitions. [2022-03-03 17:11:19,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:11:19,300 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:19,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:19,314 INFO L225 Difference]: With dead ends: 10696 [2022-03-03 17:11:19,314 INFO L226 Difference]: Without dead ends: 10430 [2022-03-03 17:11:19,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=815, Invalid=2607, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:11:19,314 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1132 mSDsluCounter, 6876 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 7116 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:19,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 7116 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:11:19,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10430 states. [2022-03-03 17:11:19,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10430 to 5343. [2022-03-03 17:11:19,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6198053163609134) internal successors, (13995), 5342 states have internal predecessors, (13995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:19,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13995 transitions. [2022-03-03 17:11:19,397 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13995 transitions. Word has length 135 [2022-03-03 17:11:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:19,397 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13995 transitions. [2022-03-03 17:11:19,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13995 transitions. [2022-03-03 17:11:19,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:19,402 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:19,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:19,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2022-03-03 17:11:19,402 INFO L402 AbstractCegarLoop]: === Iteration 266 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:19,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:19,402 INFO L85 PathProgramCache]: Analyzing trace with hash 319894315, now seen corresponding path program 215 times [2022-03-03 17:11:19,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:19,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715712818] [2022-03-03 17:11:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:19,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:19,696 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:19,696 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715712818] [2022-03-03 17:11:19,696 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715712818] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:19,696 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:19,696 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:19,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312044864] [2022-03-03 17:11:19,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:19,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:19,697 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:19,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:19,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:19,697 INFO L87 Difference]: Start difference. First operand 5343 states and 13995 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:21,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:21,411 INFO L93 Difference]: Finished difference Result 10658 states and 27892 transitions. [2022-03-03 17:11:21,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:11:21,411 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:21,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:21,423 INFO L225 Difference]: With dead ends: 10658 [2022-03-03 17:11:21,423 INFO L226 Difference]: Without dead ends: 10375 [2022-03-03 17:11:21,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:11:21,423 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1120 mSDsluCounter, 6854 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 7109 SdHoareTripleChecker+Invalid, 1359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:21,423 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 7109 Invalid, 1359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:11:21,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10375 states. [2022-03-03 17:11:21,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10375 to 5323. [2022-03-03 17:11:21,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6208192408868847) internal successors, (13948), 5322 states have internal predecessors, (13948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13948 transitions. [2022-03-03 17:11:21,506 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13948 transitions. Word has length 135 [2022-03-03 17:11:21,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:21,506 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13948 transitions. [2022-03-03 17:11:21,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:21,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13948 transitions. [2022-03-03 17:11:21,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:21,512 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:21,512 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] [2022-03-03 17:11:21,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable265 [2022-03-03 17:11:21,512 INFO L402 AbstractCegarLoop]: === Iteration 267 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:21,513 INFO L85 PathProgramCache]: Analyzing trace with hash -980229067, now seen corresponding path program 216 times [2022-03-03 17:11:21,513 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:21,513 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460541320] [2022-03-03 17:11:21,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:21,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:21,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:21,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:21,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460541320] [2022-03-03 17:11:21,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460541320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:21,776 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:21,776 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:21,776 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940942980] [2022-03-03 17:11:21,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:21,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:21,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:21,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:21,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:21,777 INFO L87 Difference]: Start difference. First operand 5323 states and 13948 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:23,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:23,832 INFO L93 Difference]: Finished difference Result 10818 states and 28320 transitions. [2022-03-03 17:11:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:11:23,833 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:23,848 INFO L225 Difference]: With dead ends: 10818 [2022-03-03 17:11:23,848 INFO L226 Difference]: Without dead ends: 10527 [2022-03-03 17:11:23,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=1044, Invalid=3246, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:11:23,849 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1196 mSDsluCounter, 6875 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 7125 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:23,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 7125 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:11:23,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10527 states. [2022-03-03 17:11:23,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10527 to 5331. [2022-03-03 17:11:23,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:23,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-03-03 17:11:23,955 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-03-03 17:11:23,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:23,955 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-03-03 17:11:23,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-03-03 17:11:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:23,961 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:23,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:23,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable266 [2022-03-03 17:11:23,961 INFO L402 AbstractCegarLoop]: === Iteration 268 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:23,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1271935095, now seen corresponding path program 217 times [2022-03-03 17:11:23,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:23,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681643474] [2022-03-03 17:11:23,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:23,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:24,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:24,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681643474] [2022-03-03 17:11:24,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681643474] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:24,333 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:24,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:24,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96518904] [2022-03-03 17:11:24,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:24,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:24,333 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:24,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:24,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:24,333 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:26,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:26,243 INFO L93 Difference]: Finished difference Result 10768 states and 28190 transitions. [2022-03-03 17:11:26,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:11:26,244 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:26,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:26,256 INFO L225 Difference]: With dead ends: 10768 [2022-03-03 17:11:26,256 INFO L226 Difference]: Without dead ends: 10502 [2022-03-03 17:11:26,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:11:26,257 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1160 mSDsluCounter, 6880 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 7122 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:26,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 7122 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:26,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10502 states. [2022-03-03 17:11:26,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10502 to 5335. [2022-03-03 17:11:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:26,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-03-03 17:11:26,343 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-03-03 17:11:26,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:26,343 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-03-03 17:11:26,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:26,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-03-03 17:11:26,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:26,349 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:26,350 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:26,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable267 [2022-03-03 17:11:26,350 INFO L402 AbstractCegarLoop]: === Iteration 269 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:26,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:26,350 INFO L85 PathProgramCache]: Analyzing trace with hash 854183729, now seen corresponding path program 218 times [2022-03-03 17:11:26,350 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:26,350 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972677974] [2022-03-03 17:11:26,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:26,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:26,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:26,616 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:26,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972677974] [2022-03-03 17:11:26,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972677974] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:26,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:26,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:26,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892984762] [2022-03-03 17:11:26,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:26,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:26,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:26,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:26,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:26,617 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:28,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:28,668 INFO L93 Difference]: Finished difference Result 10730 states and 28090 transitions. [2022-03-03 17:11:28,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:11:28,668 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:28,684 INFO L225 Difference]: With dead ends: 10730 [2022-03-03 17:11:28,684 INFO L226 Difference]: Without dead ends: 10459 [2022-03-03 17:11:28,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:11:28,685 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1124 mSDsluCounter, 6836 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 7090 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:28,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 7090 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:11:28,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10459 states. [2022-03-03 17:11:28,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10459 to 5327. [2022-03-03 17:11:28,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-03-03 17:11:28,784 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-03-03 17:11:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:28,784 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-03-03 17:11:28,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:28,785 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-03-03 17:11:28,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:28,790 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:28,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:28,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable268 [2022-03-03 17:11:28,790 INFO L402 AbstractCegarLoop]: === Iteration 270 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:28,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:28,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1226963895, now seen corresponding path program 219 times [2022-03-03 17:11:28,791 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:28,791 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576461767] [2022-03-03 17:11:28,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:28,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:29,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:29,078 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:29,078 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576461767] [2022-03-03 17:11:29,078 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576461767] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:29,078 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:29,078 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:29,078 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358533522] [2022-03-03 17:11:29,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:29,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:29,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:29,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:29,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:29,079 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:31,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:31,416 INFO L93 Difference]: Finished difference Result 10820 states and 28308 transitions. [2022-03-03 17:11:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:11:31,416 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:31,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:31,429 INFO L225 Difference]: With dead ends: 10820 [2022-03-03 17:11:31,429 INFO L226 Difference]: Without dead ends: 10523 [2022-03-03 17:11:31,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1011, Invalid=3149, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:11:31,429 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1212 mSDsluCounter, 6959 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 7192 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:31,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1212 Valid, 7192 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1363 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:11:31,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10523 states. [2022-03-03 17:11:31,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10523 to 5331. [2022-03-03 17:11:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:31,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-03-03 17:11:31,512 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-03-03 17:11:31,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:31,512 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-03-03 17:11:31,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:31,512 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-03-03 17:11:31,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:31,517 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:31,517 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:31,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable269 [2022-03-03 17:11:31,517 INFO L402 AbstractCegarLoop]: === Iteration 271 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:31,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:31,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1189613885, now seen corresponding path program 220 times [2022-03-03 17:11:31,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:31,518 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275585770] [2022-03-03 17:11:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:31,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:31,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:31,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:31,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275585770] [2022-03-03 17:11:31,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275585770] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:31,914 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:31,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:31,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730389769] [2022-03-03 17:11:31,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:31,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:31,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:31,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:31,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:31,915 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:34,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:34,342 INFO L93 Difference]: Finished difference Result 10720 states and 28054 transitions. [2022-03-03 17:11:34,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:11:34,342 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:34,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:34,358 INFO L225 Difference]: With dead ends: 10720 [2022-03-03 17:11:34,358 INFO L226 Difference]: Without dead ends: 10454 [2022-03-03 17:11:34,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=873, Invalid=2787, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:11:34,358 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1140 mSDsluCounter, 6898 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 7138 SdHoareTripleChecker+Invalid, 1365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:34,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 7138 Invalid, 1365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:34,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2022-03-03 17:11:34,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 5335. [2022-03-03 17:11:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-03-03 17:11:34,449 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-03-03 17:11:34,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:34,449 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-03-03 17:11:34,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:34,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-03-03 17:11:34,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:34,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:34,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:34,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable270 [2022-03-03 17:11:34,454 INFO L402 AbstractCegarLoop]: === Iteration 272 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:34,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:34,454 INFO L85 PathProgramCache]: Analyzing trace with hash 936504939, now seen corresponding path program 221 times [2022-03-03 17:11:34,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:34,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586475394] [2022-03-03 17:11:34,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:34,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:34,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:34,749 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:34,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586475394] [2022-03-03 17:11:34,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586475394] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:34,749 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:34,749 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:34,749 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395493920] [2022-03-03 17:11:34,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:34,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:34,749 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:34,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:34,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:34,749 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:36,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:36,994 INFO L93 Difference]: Finished difference Result 10650 states and 27866 transitions. [2022-03-03 17:11:36,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:11:36,994 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:36,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:37,008 INFO L225 Difference]: With dead ends: 10650 [2022-03-03 17:11:37,008 INFO L226 Difference]: Without dead ends: 10363 [2022-03-03 17:11:37,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=843, Invalid=2697, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:11:37,009 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1127 mSDsluCounter, 6805 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 7055 SdHoareTripleChecker+Invalid, 1332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:37,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 7055 Invalid, 1332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:37,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10363 states. [2022-03-03 17:11:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10363 to 5311. [2022-03-03 17:11:37,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.620527306967985) internal successors, (13915), 5310 states have internal predecessors, (13915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:37,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13915 transitions. [2022-03-03 17:11:37,087 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13915 transitions. Word has length 135 [2022-03-03 17:11:37,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:37,088 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13915 transitions. [2022-03-03 17:11:37,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:37,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13915 transitions. [2022-03-03 17:11:37,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:37,092 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:37,092 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:37,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable271 [2022-03-03 17:11:37,093 INFO L402 AbstractCegarLoop]: === Iteration 273 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:37,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:37,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1594245423, now seen corresponding path program 222 times [2022-03-03 17:11:37,093 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:37,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310980144] [2022-03-03 17:11:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:37,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:37,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:37,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:37,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310980144] [2022-03-03 17:11:37,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310980144] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:37,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:37,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:37,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589570870] [2022-03-03 17:11:37,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:37,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:37,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:37,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:37,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:37,421 INFO L87 Difference]: Start difference. First operand 5311 states and 13915 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:39,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:39,877 INFO L93 Difference]: Finished difference Result 10866 states and 28452 transitions. [2022-03-03 17:11:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:11:39,877 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:39,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:39,892 INFO L225 Difference]: With dead ends: 10866 [2022-03-03 17:11:39,892 INFO L226 Difference]: Without dead ends: 10575 [2022-03-03 17:11:39,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1021, Invalid=3139, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:11:39,892 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1194 mSDsluCounter, 6838 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 7089 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:39,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 7089 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:39,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10575 states. [2022-03-03 17:11:40,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10575 to 5331. [2022-03-03 17:11:40,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6202626641651032) internal successors, (13966), 5330 states have internal predecessors, (13966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:40,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13966 transitions. [2022-03-03 17:11:40,037 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13966 transitions. Word has length 135 [2022-03-03 17:11:40,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:40,037 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13966 transitions. [2022-03-03 17:11:40,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:40,037 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13966 transitions. [2022-03-03 17:11:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:40,042 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:40,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:40,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable272 [2022-03-03 17:11:40,043 INFO L402 AbstractCegarLoop]: === Iteration 274 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:40,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:40,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1885951451, now seen corresponding path program 223 times [2022-03-03 17:11:40,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:40,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853281859] [2022-03-03 17:11:40,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:40,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:40,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:40,386 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:40,386 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853281859] [2022-03-03 17:11:40,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853281859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:40,386 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:40,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:40,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712029019] [2022-03-03 17:11:40,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:40,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:40,386 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:40,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:40,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:40,387 INFO L87 Difference]: Start difference. First operand 5331 states and 13966 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:42,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:42,686 INFO L93 Difference]: Finished difference Result 10832 states and 28366 transitions. [2022-03-03 17:11:42,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:11:42,687 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:42,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:42,702 INFO L225 Difference]: With dead ends: 10832 [2022-03-03 17:11:42,702 INFO L226 Difference]: Without dead ends: 10566 [2022-03-03 17:11:42,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=838, Invalid=2702, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:11:42,703 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1132 mSDsluCounter, 7273 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 7505 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:42,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1132 Valid, 7505 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:11:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10566 states. [2022-03-03 17:11:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10566 to 5335. [2022-03-03 17:11:42,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.619610048743907) internal successors, (13973), 5334 states have internal predecessors, (13973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:42,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13973 transitions. [2022-03-03 17:11:42,806 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13973 transitions. Word has length 135 [2022-03-03 17:11:42,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:42,806 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13973 transitions. [2022-03-03 17:11:42,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:42,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13973 transitions. [2022-03-03 17:11:42,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:42,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:42,812 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] [2022-03-03 17:11:42,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273 [2022-03-03 17:11:42,812 INFO L402 AbstractCegarLoop]: === Iteration 275 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:42,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:42,812 INFO L85 PathProgramCache]: Analyzing trace with hash 240167373, now seen corresponding path program 224 times [2022-03-03 17:11:42,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:42,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155798992] [2022-03-03 17:11:42,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:42,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:43,211 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:43,211 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155798992] [2022-03-03 17:11:43,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155798992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:43,211 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:43,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:43,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320512794] [2022-03-03 17:11:43,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:43,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:43,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:43,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:43,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:43,212 INFO L87 Difference]: Start difference. First operand 5335 states and 13973 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:45,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:45,378 INFO L93 Difference]: Finished difference Result 10794 states and 28266 transitions. [2022-03-03 17:11:45,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:11:45,378 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:45,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:45,389 INFO L225 Difference]: With dead ends: 10794 [2022-03-03 17:11:45,389 INFO L226 Difference]: Without dead ends: 10523 [2022-03-03 17:11:45,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=877, Invalid=2783, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:11:45,389 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1138 mSDsluCounter, 6824 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 7077 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:45,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 7077 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:45,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10523 states. [2022-03-03 17:11:45,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10523 to 5327. [2022-03-03 17:11:45,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:45,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-03-03 17:11:45,456 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-03-03 17:11:45,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:45,456 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-03-03 17:11:45,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:45,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-03-03 17:11:45,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:45,461 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:45,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:45,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable274 [2022-03-03 17:11:45,461 INFO L402 AbstractCegarLoop]: === Iteration 276 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:45,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:45,461 INFO L85 PathProgramCache]: Analyzing trace with hash 612947539, now seen corresponding path program 225 times [2022-03-03 17:11:45,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:45,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329407744] [2022-03-03 17:11:45,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:45,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:45,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:45,814 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:45,815 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329407744] [2022-03-03 17:11:45,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329407744] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:45,815 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:45,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:45,815 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807730946] [2022-03-03 17:11:45,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:45,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:45,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:45,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:45,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:45,815 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:48,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:48,439 INFO L93 Difference]: Finished difference Result 10964 states and 28704 transitions. [2022-03-03 17:11:48,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:11:48,439 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:48,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:48,454 INFO L225 Difference]: With dead ends: 10964 [2022-03-03 17:11:48,454 INFO L226 Difference]: Without dead ends: 10667 [2022-03-03 17:11:48,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1034, Invalid=3256, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:11:48,455 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 1207 mSDsluCounter, 6978 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 7213 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:48,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 7213 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10667 states. [2022-03-03 17:11:48,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10667 to 5331. [2022-03-03 17:11:48,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5331 states, 5330 states have (on average 2.6195121951219513) internal successors, (13962), 5330 states have internal predecessors, (13962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5331 states to 5331 states and 13962 transitions. [2022-03-03 17:11:48,536 INFO L78 Accepts]: Start accepts. Automaton has 5331 states and 13962 transitions. Word has length 135 [2022-03-03 17:11:48,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:48,536 INFO L470 AbstractCegarLoop]: Abstraction has 5331 states and 13962 transitions. [2022-03-03 17:11:48,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5331 states and 13962 transitions. [2022-03-03 17:11:48,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:48,541 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:48,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:48,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable275 [2022-03-03 17:11:48,541 INFO L402 AbstractCegarLoop]: === Iteration 277 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:48,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:48,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1803630241, now seen corresponding path program 226 times [2022-03-03 17:11:48,541 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:48,541 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148826930] [2022-03-03 17:11:48,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:48,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:48,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:48,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148826930] [2022-03-03 17:11:48,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148826930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:48,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:48,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:48,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803761688] [2022-03-03 17:11:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:48,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:48,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:48,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:48,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:48,940 INFO L87 Difference]: Start difference. First operand 5331 states and 13962 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:51,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:51,266 INFO L93 Difference]: Finished difference Result 10848 states and 28406 transitions. [2022-03-03 17:11:51,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:11:51,266 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:51,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:51,279 INFO L225 Difference]: With dead ends: 10848 [2022-03-03 17:11:51,279 INFO L226 Difference]: Without dead ends: 10582 [2022-03-03 17:11:51,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=868, Invalid=2792, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:11:51,280 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 1156 mSDsluCounter, 6886 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 7129 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:51,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1156 Valid, 7129 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:51,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-03-03 17:11:51,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 5335. [2022-03-03 17:11:51,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.61886014248219) internal successors, (13969), 5334 states have internal predecessors, (13969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:51,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13969 transitions. [2022-03-03 17:11:51,362 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13969 transitions. Word has length 135 [2022-03-03 17:11:51,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:51,363 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13969 transitions. [2022-03-03 17:11:51,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:51,363 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13969 transitions. [2022-03-03 17:11:51,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:51,368 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:51,368 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:51,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276 [2022-03-03 17:11:51,368 INFO L402 AbstractCegarLoop]: === Iteration 278 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:51,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:51,368 INFO L85 PathProgramCache]: Analyzing trace with hash 322488583, now seen corresponding path program 227 times [2022-03-03 17:11:51,368 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:51,368 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974900841] [2022-03-03 17:11:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:51,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:51,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:51,773 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:51,773 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974900841] [2022-03-03 17:11:51,773 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974900841] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:51,773 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:51,773 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:51,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516698858] [2022-03-03 17:11:51,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:51,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:51,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:51,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:51,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:51,773 INFO L87 Difference]: Start difference. First operand 5335 states and 13969 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:54,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:54,093 INFO L93 Difference]: Finished difference Result 10794 states and 28262 transitions. [2022-03-03 17:11:54,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:11:54,094 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:54,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:54,108 INFO L225 Difference]: With dead ends: 10794 [2022-03-03 17:11:54,108 INFO L226 Difference]: Without dead ends: 10519 [2022-03-03 17:11:54,109 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=848, Invalid=2692, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:11:54,109 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1129 mSDsluCounter, 6806 mSDsCounter, 0 mSdLazyCounter, 1325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 7056 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:54,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 7056 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1325 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:11:54,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10519 states. [2022-03-03 17:11:54,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10519 to 5323. [2022-03-03 17:11:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5323 states, 5322 states have (on average 2.6200676437429538) internal successors, (13944), 5322 states have internal predecessors, (13944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:54,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 13944 transitions. [2022-03-03 17:11:54,202 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 13944 transitions. Word has length 135 [2022-03-03 17:11:54,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:54,202 INFO L470 AbstractCegarLoop]: Abstraction has 5323 states and 13944 transitions. [2022-03-03 17:11:54,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:54,203 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 13944 transitions. [2022-03-03 17:11:54,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:54,208 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:54,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:54,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable277 [2022-03-03 17:11:54,208 INFO L402 AbstractCegarLoop]: === Iteration 279 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:54,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:54,209 INFO L85 PathProgramCache]: Analyzing trace with hash -296817469, now seen corresponding path program 228 times [2022-03-03 17:11:54,209 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:54,209 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87798280] [2022-03-03 17:11:54,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:54,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:54,602 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:54,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87798280] [2022-03-03 17:11:54,602 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87798280] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:54,602 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:54,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:54,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595077867] [2022-03-03 17:11:54,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:54,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:54,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:54,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:54,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:54,603 INFO L87 Difference]: Start difference. First operand 5323 states and 13944 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:57,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:11:57,693 INFO L93 Difference]: Finished difference Result 10987 states and 28736 transitions. [2022-03-03 17:11:57,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 17:11:57,693 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:11:57,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:11:57,705 INFO L225 Difference]: With dead ends: 10987 [2022-03-03 17:11:57,705 INFO L226 Difference]: Without dead ends: 10597 [2022-03-03 17:11:57,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 671 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1220, Invalid=3750, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 17:11:57,706 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 1253 mSDsluCounter, 7470 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 7687 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:11:57,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 7687 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:11:57,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10597 states. [2022-03-03 17:11:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10597 to 5335. [2022-03-03 17:11:57,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5335 states, 5334 states have (on average 2.6181102362204722) internal successors, (13965), 5334 states have internal predecessors, (13965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:57,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5335 states to 5335 states and 13965 transitions. [2022-03-03 17:11:57,781 INFO L78 Accepts]: Start accepts. Automaton has 5335 states and 13965 transitions. Word has length 135 [2022-03-03 17:11:57,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:11:57,781 INFO L470 AbstractCegarLoop]: Abstraction has 5335 states and 13965 transitions. [2022-03-03 17:11:57,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:11:57,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5335 states and 13965 transitions. [2022-03-03 17:11:57,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:11:57,787 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:11:57,787 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:11:57,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable278 [2022-03-03 17:11:57,787 INFO L402 AbstractCegarLoop]: === Iteration 280 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:11:57,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:11:57,787 INFO L85 PathProgramCache]: Analyzing trace with hash -690282505, now seen corresponding path program 229 times [2022-03-03 17:11:57,787 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:11:57,787 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367952853] [2022-03-03 17:11:57,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:11:57,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:11:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:11:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:11:58,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:11:58,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367952853] [2022-03-03 17:11:58,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367952853] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:11:58,134 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:11:58,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:11:58,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754894194] [2022-03-03 17:11:58,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:11:58,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:11:58,134 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:11:58,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:11:58,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:11:58,134 INFO L87 Difference]: Start difference. First operand 5335 states and 13965 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:00,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:00,675 INFO L93 Difference]: Finished difference Result 10844 states and 28362 transitions. [2022-03-03 17:12:00,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:12:00,675 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:00,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:00,691 INFO L225 Difference]: With dead ends: 10844 [2022-03-03 17:12:00,691 INFO L226 Difference]: Without dead ends: 10547 [2022-03-03 17:12:00,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1058, Invalid=3364, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:12:00,692 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 1205 mSDsluCounter, 6979 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 7215 SdHoareTripleChecker+Invalid, 1376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:00,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 7215 Invalid, 1376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:00,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10547 states. [2022-03-03 17:12:00,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10547 to 5339. [2022-03-03 17:12:00,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5338 states have (on average 2.6174597227426) internal successors, (13972), 5338 states have internal predecessors, (13972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 13972 transitions. [2022-03-03 17:12:00,836 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 13972 transitions. Word has length 135 [2022-03-03 17:12:00,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:00,837 INFO L470 AbstractCegarLoop]: Abstraction has 5339 states and 13972 transitions. [2022-03-03 17:12:00,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 13972 transitions. [2022-03-03 17:12:00,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:00,843 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:00,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:00,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable279 [2022-03-03 17:12:00,843 INFO L402 AbstractCegarLoop]: === Iteration 281 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:00,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:00,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1188107011, now seen corresponding path program 230 times [2022-03-03 17:12:00,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:00,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054799421] [2022-03-03 17:12:00,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:00,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:01,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:01,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054799421] [2022-03-03 17:12:01,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054799421] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:01,170 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:01,170 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:01,170 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857177410] [2022-03-03 17:12:01,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:01,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:01,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:01,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:01,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:01,171 INFO L87 Difference]: Start difference. First operand 5339 states and 13972 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:02,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:02,757 INFO L93 Difference]: Finished difference Result 10744 states and 28108 transitions. [2022-03-03 17:12:02,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:12:02,757 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:02,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:02,771 INFO L225 Difference]: With dead ends: 10744 [2022-03-03 17:12:02,772 INFO L226 Difference]: Without dead ends: 10478 [2022-03-03 17:12:02,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:12:02,772 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1141 mSDsluCounter, 6859 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 7099 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:02,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 7099 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:02,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10478 states. [2022-03-03 17:12:02,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10478 to 5343. [2022-03-03 17:12:02,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 5342 states have (on average 2.6168101834518906) internal successors, (13979), 5342 states have internal predecessors, (13979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:02,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 13979 transitions. [2022-03-03 17:12:02,863 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 13979 transitions. Word has length 135 [2022-03-03 17:12:02,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:02,863 INFO L470 AbstractCegarLoop]: Abstraction has 5343 states and 13979 transitions. [2022-03-03 17:12:02,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:02,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 13979 transitions. [2022-03-03 17:12:02,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:02,868 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:02,868 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:02,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable280 [2022-03-03 17:12:02,868 INFO L402 AbstractCegarLoop]: === Iteration 282 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:02,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:02,869 INFO L85 PathProgramCache]: Analyzing trace with hash -980741461, now seen corresponding path program 231 times [2022-03-03 17:12:02,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:02,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718451131] [2022-03-03 17:12:02,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:02,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:03,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:03,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:03,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718451131] [2022-03-03 17:12:03,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718451131] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:03,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:03,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:03,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383366689] [2022-03-03 17:12:03,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:03,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:03,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:03,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:03,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:03,123 INFO L87 Difference]: Start difference. First operand 5343 states and 13979 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:05,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:05,122 INFO L93 Difference]: Finished difference Result 10658 states and 27876 transitions. [2022-03-03 17:12:05,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:12:05,123 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:05,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:05,138 INFO L225 Difference]: With dead ends: 10658 [2022-03-03 17:12:05,139 INFO L226 Difference]: Without dead ends: 10327 [2022-03-03 17:12:05,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=820, Invalid=2602, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:12:05,139 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1118 mSDsluCounter, 6775 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 7022 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:05,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 7022 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:05,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10327 states. [2022-03-03 17:12:05,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10327 to 5275. [2022-03-03 17:12:05,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 2.619643534319302) internal successors, (13816), 5274 states have internal predecessors, (13816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:05,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 13816 transitions. [2022-03-03 17:12:05,264 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 13816 transitions. Word has length 135 [2022-03-03 17:12:05,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:05,265 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 13816 transitions. [2022-03-03 17:12:05,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 13816 transitions. [2022-03-03 17:12:05,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:05,270 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:05,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:05,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable281 [2022-03-03 17:12:05,270 INFO L402 AbstractCegarLoop]: === Iteration 283 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:05,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:05,271 INFO L85 PathProgramCache]: Analyzing trace with hash 689155321, now seen corresponding path program 232 times [2022-03-03 17:12:05,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:05,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240185339] [2022-03-03 17:12:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:05,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:05,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:05,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:05,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240185339] [2022-03-03 17:12:05,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240185339] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:05,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:05,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:05,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78482326] [2022-03-03 17:12:05,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:05,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:05,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:05,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:05,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:05,663 INFO L87 Difference]: Start difference. First operand 5275 states and 13816 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:08,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:08,060 INFO L93 Difference]: Finished difference Result 10590 states and 27713 transitions. [2022-03-03 17:12:08,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:12:08,061 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:08,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:08,075 INFO L225 Difference]: With dead ends: 10590 [2022-03-03 17:12:08,075 INFO L226 Difference]: Without dead ends: 10299 [2022-03-03 17:12:08,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=998, Invalid=3034, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:12:08,076 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1165 mSDsluCounter, 7193 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 7433 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:08,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1165 Valid, 7433 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:08,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10299 states. [2022-03-03 17:12:08,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10299 to 5299. [2022-03-03 17:12:08,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6194790486976216) internal successors, (13878), 5298 states have internal predecessors, (13878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:08,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13878 transitions. [2022-03-03 17:12:08,166 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13878 transitions. Word has length 135 [2022-03-03 17:12:08,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:08,166 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13878 transitions. [2022-03-03 17:12:08,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:08,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13878 transitions. [2022-03-03 17:12:08,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:08,172 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:08,172 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:08,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable282 [2022-03-03 17:12:08,172 INFO L402 AbstractCegarLoop]: === Iteration 284 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:08,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:08,172 INFO L85 PathProgramCache]: Analyzing trace with hash 397449293, now seen corresponding path program 233 times [2022-03-03 17:12:08,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:08,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849194025] [2022-03-03 17:12:08,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:08,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:08,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:08,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:08,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849194025] [2022-03-03 17:12:08,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849194025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:08,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:08,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:08,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36458527] [2022-03-03 17:12:08,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:08,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:08,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:08,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:08,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:08,523 INFO L87 Difference]: Start difference. First operand 5299 states and 13878 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:10,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:10,961 INFO L93 Difference]: Finished difference Result 10604 states and 27743 transitions. [2022-03-03 17:12:10,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:12:10,962 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:10,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:10,974 INFO L225 Difference]: With dead ends: 10604 [2022-03-03 17:12:10,974 INFO L226 Difference]: Without dead ends: 10338 [2022-03-03 17:12:10,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=833, Invalid=2707, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:12:10,974 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1137 mSDsluCounter, 7208 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 7433 SdHoareTripleChecker+Invalid, 1385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:10,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 7433 Invalid, 1385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:12:10,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10338 states. [2022-03-03 17:12:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10338 to 5303. [2022-03-03 17:12:11,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618823085628065) internal successors, (13885), 5302 states have internal predecessors, (13885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:11,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13885 transitions. [2022-03-03 17:12:11,051 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13885 transitions. Word has length 135 [2022-03-03 17:12:11,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:11,051 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13885 transitions. [2022-03-03 17:12:11,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:11,051 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13885 transitions. [2022-03-03 17:12:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:11,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:11,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:11,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable283 [2022-03-03 17:12:11,057 INFO L402 AbstractCegarLoop]: === Iteration 285 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:11,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:11,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1771399179, now seen corresponding path program 234 times [2022-03-03 17:12:11,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:11,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466959049] [2022-03-03 17:12:11,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:11,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:11,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:11,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:11,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466959049] [2022-03-03 17:12:11,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466959049] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:11,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:11,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:11,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538650513] [2022-03-03 17:12:11,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:11,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:11,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:11,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:11,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:11,490 INFO L87 Difference]: Start difference. First operand 5303 states and 13885 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:13,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:13,792 INFO L93 Difference]: Finished difference Result 10566 states and 27643 transitions. [2022-03-03 17:12:13,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:12:13,792 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:13,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:13,807 INFO L225 Difference]: With dead ends: 10566 [2022-03-03 17:12:13,807 INFO L226 Difference]: Without dead ends: 10295 [2022-03-03 17:12:13,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=885, Invalid=2775, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:12:13,808 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1121 mSDsluCounter, 7121 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 7356 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:13,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 7356 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:13,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10295 states. [2022-03-03 17:12:13,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10295 to 5295. [2022-03-03 17:12:13,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6193804306762374) internal successors, (13867), 5294 states have internal predecessors, (13867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13867 transitions. [2022-03-03 17:12:13,896 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13867 transitions. Word has length 135 [2022-03-03 17:12:13,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:13,896 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13867 transitions. [2022-03-03 17:12:13,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:13,897 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13867 transitions. [2022-03-03 17:12:13,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:13,902 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:13,902 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:13,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable284 [2022-03-03 17:12:13,902 INFO L402 AbstractCegarLoop]: === Iteration 286 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:13,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:13,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1398619013, now seen corresponding path program 235 times [2022-03-03 17:12:13,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:13,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035997289] [2022-03-03 17:12:13,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:13,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:14,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:14,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:14,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035997289] [2022-03-03 17:12:14,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035997289] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:14,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:14,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:14,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282469117] [2022-03-03 17:12:14,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:14,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:14,167 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:14,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:14,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:14,167 INFO L87 Difference]: Start difference. First operand 5295 states and 13867 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:16,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:16,067 INFO L93 Difference]: Finished difference Result 10736 states and 28081 transitions. [2022-03-03 17:12:16,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:12:16,067 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:16,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:16,079 INFO L225 Difference]: With dead ends: 10736 [2022-03-03 17:12:16,080 INFO L226 Difference]: Without dead ends: 10439 [2022-03-03 17:12:16,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1024, Invalid=3266, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:12:16,080 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1212 mSDsluCounter, 7300 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 7516 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:16,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1212 Valid, 7516 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:16,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10439 states. [2022-03-03 17:12:16,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10439 to 5299. [2022-03-03 17:12:16,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.618724046810117) internal successors, (13874), 5298 states have internal predecessors, (13874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:16,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13874 transitions. [2022-03-03 17:12:16,157 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13874 transitions. Word has length 135 [2022-03-03 17:12:16,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:16,157 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13874 transitions. [2022-03-03 17:12:16,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:16,157 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13874 transitions. [2022-03-03 17:12:16,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:16,162 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:16,162 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:16,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable285 [2022-03-03 17:12:16,162 INFO L402 AbstractCegarLoop]: === Iteration 287 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:16,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:16,162 INFO L85 PathProgramCache]: Analyzing trace with hash 479770503, now seen corresponding path program 236 times [2022-03-03 17:12:16,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:16,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372022654] [2022-03-03 17:12:16,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:16,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:16,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:16,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:16,410 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372022654] [2022-03-03 17:12:16,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372022654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:16,410 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:16,410 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:16,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613545641] [2022-03-03 17:12:16,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:16,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:16,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:16,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:16,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:16,411 INFO L87 Difference]: Start difference. First operand 5299 states and 13874 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:17,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:17,952 INFO L93 Difference]: Finished difference Result 10620 states and 27783 transitions. [2022-03-03 17:12:17,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:12:17,953 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:17,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:17,966 INFO L225 Difference]: With dead ends: 10620 [2022-03-03 17:12:17,967 INFO L226 Difference]: Without dead ends: 10354 [2022-03-03 17:12:17,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=865, Invalid=2795, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:12:17,967 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1153 mSDsluCounter, 6463 mSDsCounter, 0 mSdLazyCounter, 1250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 6706 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:17,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 6706 Invalid, 1250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:12:17,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10354 states. [2022-03-03 17:12:18,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10354 to 5303. [2022-03-03 17:12:18,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.618068653338363) internal successors, (13881), 5302 states have internal predecessors, (13881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:18,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13881 transitions. [2022-03-03 17:12:18,047 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13881 transitions. Word has length 135 [2022-03-03 17:12:18,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:18,047 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13881 transitions. [2022-03-03 17:12:18,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:18,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13881 transitions. [2022-03-03 17:12:18,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:18,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:18,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:18,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable286 [2022-03-03 17:12:18,052 INFO L402 AbstractCegarLoop]: === Iteration 288 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:18,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:18,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1689077969, now seen corresponding path program 237 times [2022-03-03 17:12:18,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:18,052 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727479503] [2022-03-03 17:12:18,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:18,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:18,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:18,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:18,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727479503] [2022-03-03 17:12:18,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727479503] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:18,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:18,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:18,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599801497] [2022-03-03 17:12:18,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:18,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:18,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:18,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:18,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:18,306 INFO L87 Difference]: Start difference. First operand 5303 states and 13881 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:20,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:20,176 INFO L93 Difference]: Finished difference Result 10566 states and 27639 transitions. [2022-03-03 17:12:20,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:12:20,176 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:20,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:20,189 INFO L225 Difference]: With dead ends: 10566 [2022-03-03 17:12:20,189 INFO L226 Difference]: Without dead ends: 10291 [2022-03-03 17:12:20,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=853, Invalid=2687, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:12:20,190 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1126 mSDsluCounter, 7088 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 7319 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:20,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 7319 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:20,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10291 states. [2022-03-03 17:12:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10291 to 5291. [2022-03-03 17:12:20,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 2.619281663516068) internal successors, (13856), 5290 states have internal predecessors, (13856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:20,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 13856 transitions. [2022-03-03 17:12:20,279 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 13856 transitions. Word has length 135 [2022-03-03 17:12:20,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:20,279 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 13856 transitions. [2022-03-03 17:12:20,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:20,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 13856 transitions. [2022-03-03 17:12:20,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:20,284 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:20,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:20,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable287 [2022-03-03 17:12:20,285 INFO L402 AbstractCegarLoop]: === Iteration 289 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:20,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:20,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1986583275, now seen corresponding path program 238 times [2022-03-03 17:12:20,285 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:20,285 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018665373] [2022-03-03 17:12:20,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:20,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:20,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:20,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:20,547 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018665373] [2022-03-03 17:12:20,547 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018665373] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:20,547 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:20,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:20,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779703278] [2022-03-03 17:12:20,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:20,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:20,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:20,547 INFO L87 Difference]: Start difference. First operand 5291 states and 13856 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:23,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:23,020 INFO L93 Difference]: Finished difference Result 10903 states and 28509 transitions. [2022-03-03 17:12:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:12:23,020 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:23,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:23,035 INFO L225 Difference]: With dead ends: 10903 [2022-03-03 17:12:23,035 INFO L226 Difference]: Without dead ends: 10513 [2022-03-03 17:12:23,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1238, Invalid=3874, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:12:23,036 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1295 mSDsluCounter, 7002 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 7224 SdHoareTripleChecker+Invalid, 1340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:23,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1295 Valid, 7224 Invalid, 1340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-03-03 17:12:23,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 5303. [2022-03-03 17:12:23,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.617314221048661) internal successors, (13877), 5302 states have internal predecessors, (13877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:23,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13877 transitions. [2022-03-03 17:12:23,186 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13877 transitions. Word has length 135 [2022-03-03 17:12:23,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:23,186 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13877 transitions. [2022-03-03 17:12:23,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:23,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13877 transitions. [2022-03-03 17:12:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:23,191 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:23,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:23,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable288 [2022-03-03 17:12:23,191 INFO L402 AbstractCegarLoop]: === Iteration 290 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:23,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:23,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1593118239, now seen corresponding path program 239 times [2022-03-03 17:12:23,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:23,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416819041] [2022-03-03 17:12:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:23,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:23,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:23,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:23,584 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416819041] [2022-03-03 17:12:23,584 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416819041] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:23,584 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:23,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:23,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793834773] [2022-03-03 17:12:23,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:23,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:23,584 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:23,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:23,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:23,585 INFO L87 Difference]: Start difference. First operand 5303 states and 13877 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:26,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:26,090 INFO L93 Difference]: Finished difference Result 10752 states and 28113 transitions. [2022-03-03 17:12:26,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:12:26,091 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:26,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:26,104 INFO L225 Difference]: With dead ends: 10752 [2022-03-03 17:12:26,105 INFO L226 Difference]: Without dead ends: 10455 [2022-03-03 17:12:26,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 542 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1048, Invalid=3374, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:12:26,105 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1227 mSDsluCounter, 6918 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 7146 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:26,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 7146 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:26,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10455 states. [2022-03-03 17:12:26,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10455 to 5307. [2022-03-03 17:12:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.616660384470411) internal successors, (13884), 5306 states have internal predecessors, (13884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13884 transitions. [2022-03-03 17:12:26,186 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13884 transitions. Word has length 135 [2022-03-03 17:12:26,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:26,186 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13884 transitions. [2022-03-03 17:12:26,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13884 transitions. [2022-03-03 17:12:26,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:26,191 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:26,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:26,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable289 [2022-03-03 17:12:26,191 INFO L402 AbstractCegarLoop]: === Iteration 291 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:26,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:26,191 INFO L85 PathProgramCache]: Analyzing trace with hash -823459541, now seen corresponding path program 240 times [2022-03-03 17:12:26,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:26,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662763364] [2022-03-03 17:12:26,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:26,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:26,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:26,595 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:26,595 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662763364] [2022-03-03 17:12:26,595 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662763364] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:26,595 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:26,595 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:26,595 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746307800] [2022-03-03 17:12:26,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:26,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:26,595 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:26,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:26,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:26,596 INFO L87 Difference]: Start difference. First operand 5307 states and 13884 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:29,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:29,003 INFO L93 Difference]: Finished difference Result 10636 states and 27815 transitions. [2022-03-03 17:12:29,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:12:29,004 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:29,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:29,015 INFO L225 Difference]: With dead ends: 10636 [2022-03-03 17:12:29,016 INFO L226 Difference]: Without dead ends: 10370 [2022-03-03 17:12:29,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=858, Invalid=2802, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:12:29,016 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1144 mSDsluCounter, 7182 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 7404 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:29,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 7404 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:29,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10370 states. [2022-03-03 17:12:29,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10370 to 5311. [2022-03-03 17:12:29,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.6160075329566856) internal successors, (13891), 5310 states have internal predecessors, (13891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:29,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13891 transitions. [2022-03-03 17:12:29,099 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13891 transitions. Word has length 135 [2022-03-03 17:12:29,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:29,099 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13891 transitions. [2022-03-03 17:12:29,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:29,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13891 transitions. [2022-03-03 17:12:29,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:29,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:29,105 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:29,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable290 [2022-03-03 17:12:29,105 INFO L402 AbstractCegarLoop]: === Iteration 292 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:29,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:29,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1302659283, now seen corresponding path program 241 times [2022-03-03 17:12:29,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:29,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000997333] [2022-03-03 17:12:29,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:29,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:29,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:29,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:29,362 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:29,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000997333] [2022-03-03 17:12:29,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000997333] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:29,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:29,362 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:29,362 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743858355] [2022-03-03 17:12:29,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:29,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:29,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:29,363 INFO L87 Difference]: Start difference. First operand 5311 states and 13891 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:30,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:30,921 INFO L93 Difference]: Finished difference Result 10574 states and 27649 transitions. [2022-03-03 17:12:30,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:12:30,922 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:30,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:30,937 INFO L225 Difference]: With dead ends: 10574 [2022-03-03 17:12:30,937 INFO L226 Difference]: Without dead ends: 10279 [2022-03-03 17:12:30,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=825, Invalid=2597, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:12:30,937 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1143 mSDsluCounter, 6693 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 6930 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:30,937 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 6930 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:12:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2022-03-03 17:12:31,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 5279. [2022-03-03 17:12:31,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 2.61898446381205) internal successors, (13823), 5278 states have internal predecessors, (13823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:31,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 13823 transitions. [2022-03-03 17:12:31,030 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 13823 transitions. Word has length 135 [2022-03-03 17:12:31,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:31,030 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 13823 transitions. [2022-03-03 17:12:31,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 13823 transitions. [2022-03-03 17:12:31,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:31,036 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:31,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:31,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable291 [2022-03-03 17:12:31,036 INFO L402 AbstractCegarLoop]: === Iteration 293 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:31,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:31,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1508703591, now seen corresponding path program 242 times [2022-03-03 17:12:31,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:31,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387593672] [2022-03-03 17:12:31,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:31,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:31,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:31,286 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:31,286 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387593672] [2022-03-03 17:12:31,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387593672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:31,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:31,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:31,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497665399] [2022-03-03 17:12:31,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:31,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:31,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:31,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:31,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:31,287 INFO L87 Difference]: Start difference. First operand 5279 states and 13823 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:33,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:33,666 INFO L93 Difference]: Finished difference Result 10885 states and 28364 transitions. [2022-03-03 17:12:33,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:12:33,666 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:33,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:33,678 INFO L225 Difference]: With dead ends: 10885 [2022-03-03 17:12:33,678 INFO L226 Difference]: Without dead ends: 10464 [2022-03-03 17:12:33,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1424, Invalid=4276, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:12:33,679 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1597 mSDsluCounter, 7407 mSDsCounter, 0 mSdLazyCounter, 1318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1597 SdHoareTripleChecker+Valid, 7620 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:33,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1597 Valid, 7620 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1318 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:33,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10464 states. [2022-03-03 17:12:33,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10464 to 5283. [2022-03-03 17:12:33,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5282 states have (on average 2.618326391518364) internal successors, (13830), 5282 states have internal predecessors, (13830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 13830 transitions. [2022-03-03 17:12:33,758 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 13830 transitions. Word has length 135 [2022-03-03 17:12:33,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:33,758 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 13830 transitions. [2022-03-03 17:12:33,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:33,758 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 13830 transitions. [2022-03-03 17:12:33,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:33,763 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:33,763 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:33,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable292 [2022-03-03 17:12:33,764 INFO L402 AbstractCegarLoop]: === Iteration 294 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:33,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:33,764 INFO L85 PathProgramCache]: Analyzing trace with hash -411483453, now seen corresponding path program 243 times [2022-03-03 17:12:33,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:33,764 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65051117] [2022-03-03 17:12:33,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:33,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:34,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:34,007 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65051117] [2022-03-03 17:12:34,007 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65051117] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:34,007 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:34,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:34,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361230111] [2022-03-03 17:12:34,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:34,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:34,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:34,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:34,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:34,008 INFO L87 Difference]: Start difference. First operand 5283 states and 13830 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:36,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:36,396 INFO L93 Difference]: Finished difference Result 10695 states and 27933 transitions. [2022-03-03 17:12:36,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:12:36,397 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:36,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:36,411 INFO L225 Difference]: With dead ends: 10695 [2022-03-03 17:12:36,412 INFO L226 Difference]: Without dead ends: 10305 [2022-03-03 17:12:36,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1258, Invalid=3998, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:12:36,413 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1321 mSDsluCounter, 6249 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 6490 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:36,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 6490 Invalid, 1176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:36,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10305 states. [2022-03-03 17:12:36,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10305 to 5295. [2022-03-03 17:12:36,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6163581412920287) internal successors, (13851), 5294 states have internal predecessors, (13851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:36,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13851 transitions. [2022-03-03 17:12:36,577 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13851 transitions. Word has length 135 [2022-03-03 17:12:36,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:36,577 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13851 transitions. [2022-03-03 17:12:36,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13851 transitions. [2022-03-03 17:12:36,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:36,582 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:36,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:36,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable293 [2022-03-03 17:12:36,582 INFO L402 AbstractCegarLoop]: === Iteration 295 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:36,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:36,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1556579657, now seen corresponding path program 244 times [2022-03-03 17:12:36,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:36,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121670662] [2022-03-03 17:12:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:36,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:36,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:36,867 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:36,867 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121670662] [2022-03-03 17:12:36,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121670662] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:36,867 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:36,867 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:36,867 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274660550] [2022-03-03 17:12:36,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:36,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:36,868 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:36,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:36,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:36,868 INFO L87 Difference]: Start difference. First operand 5295 states and 13851 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:39,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:39,014 INFO L93 Difference]: Finished difference Result 10556 states and 27570 transitions. [2022-03-03 17:12:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:12:39,015 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:39,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:39,029 INFO L225 Difference]: With dead ends: 10556 [2022-03-03 17:12:39,029 INFO L226 Difference]: Without dead ends: 10259 [2022-03-03 17:12:39,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1038, Invalid=3384, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:12:39,030 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1236 mSDsluCounter, 6871 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 7094 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:39,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1236 Valid, 7094 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:39,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2022-03-03 17:12:39,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 5299. [2022-03-03 17:12:39,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6157040392600983) internal successors, (13858), 5298 states have internal predecessors, (13858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:39,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13858 transitions. [2022-03-03 17:12:39,128 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13858 transitions. Word has length 135 [2022-03-03 17:12:39,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:39,128 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13858 transitions. [2022-03-03 17:12:39,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:39,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13858 transitions. [2022-03-03 17:12:39,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:39,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:39,134 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:39,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable294 [2022-03-03 17:12:39,134 INFO L402 AbstractCegarLoop]: === Iteration 296 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:39,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash 321809859, now seen corresponding path program 245 times [2022-03-03 17:12:39,134 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:39,134 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85925401] [2022-03-03 17:12:39,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:39,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:39,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:39,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:39,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85925401] [2022-03-03 17:12:39,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85925401] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:39,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:39,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:39,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850776008] [2022-03-03 17:12:39,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:39,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:39,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:39,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:39,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:39,463 INFO L87 Difference]: Start difference. First operand 5299 states and 13858 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:41,676 INFO L93 Difference]: Finished difference Result 10464 states and 27338 transitions. [2022-03-03 17:12:41,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:12:41,677 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:41,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:41,687 INFO L225 Difference]: With dead ends: 10464 [2022-03-03 17:12:41,688 INFO L226 Difference]: Without dead ends: 10198 [2022-03-03 17:12:41,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=853, Invalid=2807, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:12:41,688 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1161 mSDsluCounter, 7133 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 7350 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:41,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1161 Valid, 7350 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10198 states. [2022-03-03 17:12:41,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10198 to 5303. [2022-03-03 17:12:41,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.6150509241795548) internal successors, (13865), 5302 states have internal predecessors, (13865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:41,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13865 transitions. [2022-03-03 17:12:41,766 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13865 transitions. Word has length 135 [2022-03-03 17:12:41,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:41,766 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13865 transitions. [2022-03-03 17:12:41,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:41,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13865 transitions. [2022-03-03 17:12:41,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:41,772 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:41,772 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:41,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable295 [2022-03-03 17:12:41,772 INFO L402 AbstractCegarLoop]: === Iteration 297 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:41,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:41,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1847038613, now seen corresponding path program 246 times [2022-03-03 17:12:41,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:41,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582620097] [2022-03-03 17:12:41,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:41,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:42,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:42,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:42,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582620097] [2022-03-03 17:12:42,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582620097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:42,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:42,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:42,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651824584] [2022-03-03 17:12:42,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:42,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:42,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:42,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:42,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:42,017 INFO L87 Difference]: Start difference. First operand 5303 states and 13865 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:43,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:43,439 INFO L93 Difference]: Finished difference Result 10306 states and 26928 transitions. [2022-03-03 17:12:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:12:43,439 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:43,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:43,452 INFO L225 Difference]: With dead ends: 10306 [2022-03-03 17:12:43,452 INFO L226 Difference]: Without dead ends: 9947 [2022-03-03 17:12:43,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=801, Invalid=2505, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:12:43,453 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1111 mSDsluCounter, 7000 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 7223 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:43,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 7223 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:12:43,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9947 states. [2022-03-03 17:12:43,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9947 to 5207. [2022-03-03 17:12:43,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5207 states, 5206 states have (on average 2.630234344986554) internal successors, (13693), 5206 states have internal predecessors, (13693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:43,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 5207 states and 13693 transitions. [2022-03-03 17:12:43,541 INFO L78 Accepts]: Start accepts. Automaton has 5207 states and 13693 transitions. Word has length 135 [2022-03-03 17:12:43,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:43,541 INFO L470 AbstractCegarLoop]: Abstraction has 5207 states and 13693 transitions. [2022-03-03 17:12:43,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:43,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5207 states and 13693 transitions. [2022-03-03 17:12:43,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:43,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:43,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:43,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable296 [2022-03-03 17:12:43,547 INFO L402 AbstractCegarLoop]: === Iteration 298 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:43,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:43,547 INFO L85 PathProgramCache]: Analyzing trace with hash -687590931, now seen corresponding path program 247 times [2022-03-03 17:12:43,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:43,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102787456] [2022-03-03 17:12:43,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:43,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:43,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:43,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102787456] [2022-03-03 17:12:43,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102787456] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:43,800 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:43,800 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:43,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610734344] [2022-03-03 17:12:43,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:43,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:43,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:43,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:43,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:43,800 INFO L87 Difference]: Start difference. First operand 5207 states and 13693 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:46,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:46,311 INFO L93 Difference]: Finished difference Result 10238 states and 26829 transitions. [2022-03-03 17:12:46,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-03 17:12:46,311 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:46,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:46,322 INFO L225 Difference]: With dead ends: 10238 [2022-03-03 17:12:46,322 INFO L226 Difference]: Without dead ends: 9863 [2022-03-03 17:12:46,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1166, Invalid=3664, Unknown=0, NotChecked=0, Total=4830 [2022-03-03 17:12:46,323 INFO L933 BasicCegarLoop]: 396 mSDtfsCounter, 1126 mSDsluCounter, 7281 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1126 SdHoareTripleChecker+Valid, 7556 SdHoareTripleChecker+Invalid, 1471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:46,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1126 Valid, 7556 Invalid, 1471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:46,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9863 states. [2022-03-03 17:12:46,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9863 to 5447. [2022-03-03 17:12:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.633308850532501) internal successors, (14341), 5446 states have internal predecessors, (14341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:46,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14341 transitions. [2022-03-03 17:12:46,404 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14341 transitions. Word has length 135 [2022-03-03 17:12:46,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:46,404 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14341 transitions. [2022-03-03 17:12:46,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:46,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14341 transitions. [2022-03-03 17:12:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:46,410 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:46,410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:46,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable297 [2022-03-03 17:12:46,410 INFO L402 AbstractCegarLoop]: === Iteration 299 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:46,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:46,411 INFO L85 PathProgramCache]: Analyzing trace with hash -2089263093, now seen corresponding path program 248 times [2022-03-03 17:12:46,411 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:46,411 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327572727] [2022-03-03 17:12:46,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:46,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:46,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:46,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:46,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:46,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327572727] [2022-03-03 17:12:46,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327572727] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:46,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:46,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:46,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194617195] [2022-03-03 17:12:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:46,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:46,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:46,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:46,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:46,804 INFO L87 Difference]: Start difference. First operand 5447 states and 14341 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:49,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:49,146 INFO L93 Difference]: Finished difference Result 10286 states and 26945 transitions. [2022-03-03 17:12:49,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:12:49,146 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:49,159 INFO L225 Difference]: With dead ends: 10286 [2022-03-03 17:12:49,159 INFO L226 Difference]: Without dead ends: 9995 [2022-03-03 17:12:49,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1032, Invalid=3390, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:12:49,160 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1153 mSDsluCounter, 6803 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 7078 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:49,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1153 Valid, 7078 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:49,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9995 states. [2022-03-03 17:12:49,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9995 to 5451. [2022-03-03 17:12:49,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:49,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-03-03 17:12:49,233 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-03-03 17:12:49,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:49,233 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-03-03 17:12:49,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:49,233 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-03-03 17:12:49,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:49,238 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:49,238 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:49,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable298 [2022-03-03 17:12:49,238 INFO L402 AbstractCegarLoop]: === Iteration 300 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:49,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:49,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1913998175, now seen corresponding path program 249 times [2022-03-03 17:12:49,238 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:49,238 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703495646] [2022-03-03 17:12:49,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:49,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:49,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:49,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703495646] [2022-03-03 17:12:49,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703495646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:49,546 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:49,546 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:49,546 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262355653] [2022-03-03 17:12:49,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:49,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:49,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:49,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:49,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:49,547 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:51,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:51,506 INFO L93 Difference]: Finished difference Result 10172 states and 26639 transitions. [2022-03-03 17:12:51,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:12:51,507 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:51,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:51,520 INFO L225 Difference]: With dead ends: 10172 [2022-03-03 17:12:51,520 INFO L226 Difference]: Without dead ends: 9906 [2022-03-03 17:12:51,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=773, Invalid=2649, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:12:51,521 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1058 mSDsluCounter, 6816 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 7075 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:51,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1058 Valid, 7075 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:51,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9906 states. [2022-03-03 17:12:51,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9906 to 5455. [2022-03-03 17:12:51,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:51,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-03-03 17:12:51,608 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-03-03 17:12:51,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:51,608 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-03-03 17:12:51,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:51,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-03-03 17:12:51,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:51,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:51,614 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:51,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable299 [2022-03-03 17:12:51,614 INFO L402 AbstractCegarLoop]: === Iteration 301 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:51,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:51,615 INFO L85 PathProgramCache]: Analyzing trace with hash -254850297, now seen corresponding path program 250 times [2022-03-03 17:12:51,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:51,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443738052] [2022-03-03 17:12:51,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:51,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:51,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:51,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443738052] [2022-03-03 17:12:51,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443738052] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:51,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:51,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:51,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893514972] [2022-03-03 17:12:51,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:51,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:51,999 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:51,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:51,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:51,999 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:54,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:54,089 INFO L93 Difference]: Finished difference Result 10134 states and 26539 transitions. [2022-03-03 17:12:54,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:12:54,089 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:54,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:54,102 INFO L225 Difference]: With dead ends: 10134 [2022-03-03 17:12:54,103 INFO L226 Difference]: Without dead ends: 9851 [2022-03-03 17:12:54,103 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=831, Invalid=2829, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:12:54,103 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1042 mSDsluCounter, 6784 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1042 SdHoareTripleChecker+Valid, 7060 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:54,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1042 Valid, 7060 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:54,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9851 states. [2022-03-03 17:12:54,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9851 to 5435. [2022-03-03 17:12:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.633051159366949) internal successors, (14308), 5434 states have internal predecessors, (14308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14308 transitions. [2022-03-03 17:12:54,181 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14308 transitions. Word has length 135 [2022-03-03 17:12:54,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:54,182 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14308 transitions. [2022-03-03 17:12:54,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:54,182 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14308 transitions. [2022-03-03 17:12:54,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:54,186 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:54,186 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] [2022-03-03 17:12:54,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable300 [2022-03-03 17:12:54,187 INFO L402 AbstractCegarLoop]: === Iteration 302 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:54,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:54,187 INFO L85 PathProgramCache]: Analyzing trace with hash -983817491, now seen corresponding path program 251 times [2022-03-03 17:12:54,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:54,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971743374] [2022-03-03 17:12:54,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:54,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:54,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:54,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971743374] [2022-03-03 17:12:54,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971743374] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:54,522 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:54,522 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:54,522 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970061371] [2022-03-03 17:12:54,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:54,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:54,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:54,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:54,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:54,523 INFO L87 Difference]: Start difference. First operand 5435 states and 14308 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:56,760 INFO L93 Difference]: Finished difference Result 10294 states and 26967 transitions. [2022-03-03 17:12:56,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:12:56,760 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:56,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:56,773 INFO L225 Difference]: With dead ends: 10294 [2022-03-03 17:12:56,773 INFO L226 Difference]: Without dead ends: 10003 [2022-03-03 17:12:56,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1010, Invalid=3280, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:12:56,773 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1127 mSDsluCounter, 6440 mSDsCounter, 0 mSdLazyCounter, 1310 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 6715 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:56,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1127 Valid, 6715 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:12:56,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10003 states. [2022-03-03 17:12:56,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10003 to 5443. [2022-03-03 17:12:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6324880558618156) internal successors, (14326), 5442 states have internal predecessors, (14326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14326 transitions. [2022-03-03 17:12:56,860 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14326 transitions. Word has length 135 [2022-03-03 17:12:56,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:56,861 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14326 transitions. [2022-03-03 17:12:56,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:56,861 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14326 transitions. [2022-03-03 17:12:56,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:56,866 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:56,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:56,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable301 [2022-03-03 17:12:56,866 INFO L402 AbstractCegarLoop]: === Iteration 303 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:56,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:56,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1275523519, now seen corresponding path program 252 times [2022-03-03 17:12:56,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:56,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350409967] [2022-03-03 17:12:56,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:56,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:57,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:57,108 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350409967] [2022-03-03 17:12:57,109 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350409967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:57,109 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:57,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:57,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144508922] [2022-03-03 17:12:57,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:57,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:57,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:57,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:57,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:57,109 INFO L87 Difference]: Start difference. First operand 5443 states and 14326 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:58,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:12:58,570 INFO L93 Difference]: Finished difference Result 10244 states and 26837 transitions. [2022-03-03 17:12:58,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:12:58,570 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:12:58,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:12:58,584 INFO L225 Difference]: With dead ends: 10244 [2022-03-03 17:12:58,584 INFO L226 Difference]: Without dead ends: 9978 [2022-03-03 17:12:58,584 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=801, Invalid=2739, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:12:58,584 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1054 mSDsluCounter, 6500 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 6762 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:12:58,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 6762 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:12:58,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9978 states. [2022-03-03 17:12:58,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9978 to 5447. [2022-03-03 17:12:58,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.631839882482556) internal successors, (14333), 5446 states have internal predecessors, (14333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:58,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14333 transitions. [2022-03-03 17:12:58,673 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14333 transitions. Word has length 135 [2022-03-03 17:12:58,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:12:58,673 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14333 transitions. [2022-03-03 17:12:58,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:12:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14333 transitions. [2022-03-03 17:12:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:12:58,679 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:12:58,679 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:12:58,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable302 [2022-03-03 17:12:58,679 INFO L402 AbstractCegarLoop]: === Iteration 304 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:12:58,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:12:58,680 INFO L85 PathProgramCache]: Analyzing trace with hash 850595305, now seen corresponding path program 253 times [2022-03-03 17:12:58,680 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:12:58,680 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634474823] [2022-03-03 17:12:58,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:12:58,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:12:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:12:58,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:12:58,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:12:58,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634474823] [2022-03-03 17:12:58,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634474823] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:12:58,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:12:58,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:12:58,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039924099] [2022-03-03 17:12:58,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:12:58,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:12:58,926 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:12:58,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:12:58,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:12:58,927 INFO L87 Difference]: Start difference. First operand 5447 states and 14333 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:00,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:00,537 INFO L93 Difference]: Finished difference Result 10206 states and 26737 transitions. [2022-03-03 17:13:00,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:13:00,537 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:00,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:00,550 INFO L225 Difference]: With dead ends: 10206 [2022-03-03 17:13:00,551 INFO L226 Difference]: Without dead ends: 9935 [2022-03-03 17:13:00,551 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=839, Invalid=2821, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:13:00,551 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1067 mSDsluCounter, 6044 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 6328 SdHoareTripleChecker+Invalid, 1256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:00,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1067 Valid, 6328 Invalid, 1256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:13:00,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9935 states. [2022-03-03 17:13:00,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9935 to 5439. [2022-03-03 17:13:00,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.632401618242001) internal successors, (14315), 5438 states have internal predecessors, (14315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14315 transitions. [2022-03-03 17:13:00,640 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14315 transitions. Word has length 135 [2022-03-03 17:13:00,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:00,640 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14315 transitions. [2022-03-03 17:13:00,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:00,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14315 transitions. [2022-03-03 17:13:00,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:00,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:00,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:00,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable303 [2022-03-03 17:13:00,646 INFO L402 AbstractCegarLoop]: === Iteration 305 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:00,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:00,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1223375471, now seen corresponding path program 254 times [2022-03-03 17:13:00,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:00,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263586391] [2022-03-03 17:13:00,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:00,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:00,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:00,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:00,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263586391] [2022-03-03 17:13:00,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263586391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:00,901 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:00,901 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:00,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051867036] [2022-03-03 17:13:00,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:00,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:00,901 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:00,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:00,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:00,902 INFO L87 Difference]: Start difference. First operand 5439 states and 14315 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:02,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:02,595 INFO L93 Difference]: Finished difference Result 10296 states and 26955 transitions. [2022-03-03 17:13:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:13:02,596 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:02,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:02,610 INFO L225 Difference]: With dead ends: 10296 [2022-03-03 17:13:02,610 INFO L226 Difference]: Without dead ends: 9999 [2022-03-03 17:13:02,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=961, Invalid=3199, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:13:02,611 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1125 mSDsluCounter, 6176 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 6439 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:02,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1125 Valid, 6439 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:13:02,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2022-03-03 17:13:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 5443. [2022-03-03 17:13:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.631753031973539) internal successors, (14322), 5442 states have internal predecessors, (14322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:02,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14322 transitions. [2022-03-03 17:13:02,706 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14322 transitions. Word has length 135 [2022-03-03 17:13:02,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:02,707 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14322 transitions. [2022-03-03 17:13:02,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:02,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14322 transitions. [2022-03-03 17:13:02,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:02,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:02,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:02,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable304 [2022-03-03 17:13:02,712 INFO L402 AbstractCegarLoop]: === Iteration 306 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:02,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:02,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1193202309, now seen corresponding path program 255 times [2022-03-03 17:13:02,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:02,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016817124] [2022-03-03 17:13:02,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:02,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:03,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:03,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016817124] [2022-03-03 17:13:03,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016817124] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:03,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:03,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:03,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240381269] [2022-03-03 17:13:03,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:03,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:03,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:03,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:03,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:03,119 INFO L87 Difference]: Start difference. First operand 5443 states and 14322 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:05,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:05,293 INFO L93 Difference]: Finished difference Result 10196 states and 26701 transitions. [2022-03-03 17:13:05,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:13:05,293 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:05,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:05,307 INFO L225 Difference]: With dead ends: 10196 [2022-03-03 17:13:05,308 INFO L226 Difference]: Without dead ends: 9930 [2022-03-03 17:13:05,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=831, Invalid=2829, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:13:05,308 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1049 mSDsluCounter, 6474 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 6738 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:05,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1049 Valid, 6738 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:05,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9930 states. [2022-03-03 17:13:05,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9930 to 5447. [2022-03-03 17:13:05,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6311053984575836) internal successors, (14329), 5446 states have internal predecessors, (14329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:05,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14329 transitions. [2022-03-03 17:13:05,405 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14329 transitions. Word has length 135 [2022-03-03 17:13:05,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:05,406 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14329 transitions. [2022-03-03 17:13:05,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:05,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14329 transitions. [2022-03-03 17:13:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:05,411 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:05,411 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:05,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable305 [2022-03-03 17:13:05,412 INFO L402 AbstractCegarLoop]: === Iteration 307 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:05,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:05,412 INFO L85 PathProgramCache]: Analyzing trace with hash 932916515, now seen corresponding path program 256 times [2022-03-03 17:13:05,412 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:05,412 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896528871] [2022-03-03 17:13:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:05,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:05,807 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:05,807 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896528871] [2022-03-03 17:13:05,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896528871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:05,807 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:05,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:05,807 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213396635] [2022-03-03 17:13:05,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:05,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:05,807 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:05,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:05,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:05,808 INFO L87 Difference]: Start difference. First operand 5447 states and 14329 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:07,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:07,818 INFO L93 Difference]: Finished difference Result 10126 states and 26513 transitions. [2022-03-03 17:13:07,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:13:07,819 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:07,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:07,832 INFO L225 Difference]: With dead ends: 10126 [2022-03-03 17:13:07,832 INFO L226 Difference]: Without dead ends: 9839 [2022-03-03 17:13:07,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=807, Invalid=2733, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:13:07,832 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1028 mSDsluCounter, 7096 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1028 SdHoareTripleChecker+Valid, 7359 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:07,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1028 Valid, 7359 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:07,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9839 states. [2022-03-03 17:13:07,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9839 to 5423. [2022-03-03 17:13:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 2.632792327554408) internal successors, (14275), 5422 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:07,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 14275 transitions. [2022-03-03 17:13:07,915 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 14275 transitions. Word has length 135 [2022-03-03 17:13:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:07,915 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 14275 transitions. [2022-03-03 17:13:07,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 14275 transitions. [2022-03-03 17:13:07,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:07,921 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:07,921 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:07,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable306 [2022-03-03 17:13:07,921 INFO L402 AbstractCegarLoop]: === Iteration 308 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:07,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:07,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1395064971, now seen corresponding path program 257 times [2022-03-03 17:13:07,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:07,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492896079] [2022-03-03 17:13:07,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:07,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:08,213 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:08,213 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492896079] [2022-03-03 17:13:08,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492896079] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:08,213 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:08,213 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:08,213 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061623656] [2022-03-03 17:13:08,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:08,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:08,214 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:08,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:08,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:08,214 INFO L87 Difference]: Start difference. First operand 5423 states and 14275 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:10,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:10,163 INFO L93 Difference]: Finished difference Result 10342 states and 27099 transitions. [2022-03-03 17:13:10,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-03 17:13:10,166 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:10,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:10,180 INFO L225 Difference]: With dead ends: 10342 [2022-03-03 17:13:10,180 INFO L226 Difference]: Without dead ends: 10051 [2022-03-03 17:13:10,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 481 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=985, Invalid=3175, Unknown=0, NotChecked=0, Total=4160 [2022-03-03 17:13:10,181 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1143 mSDsluCounter, 6744 mSDsCounter, 0 mSdLazyCounter, 1378 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 7014 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:10,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 7014 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1378 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:13:10,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10051 states. [2022-03-03 17:13:10,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10051 to 5443. [2022-03-03 17:13:10,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6324880558618156) internal successors, (14326), 5442 states have internal predecessors, (14326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:10,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14326 transitions. [2022-03-03 17:13:10,272 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14326 transitions. Word has length 135 [2022-03-03 17:13:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:10,272 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14326 transitions. [2022-03-03 17:13:10,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14326 transitions. [2022-03-03 17:13:10,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:10,277 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:10,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:10,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable307 [2022-03-03 17:13:10,278 INFO L402 AbstractCegarLoop]: === Iteration 309 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:10,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:10,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1103358943, now seen corresponding path program 258 times [2022-03-03 17:13:10,278 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:10,278 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400425168] [2022-03-03 17:13:10,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:10,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:10,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:10,669 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:10,669 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400425168] [2022-03-03 17:13:10,669 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400425168] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:10,669 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:10,669 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:10,669 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139844630] [2022-03-03 17:13:10,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:10,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:10,669 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:10,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:10,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:10,670 INFO L87 Difference]: Start difference. First operand 5443 states and 14326 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:12,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:12,924 INFO L93 Difference]: Finished difference Result 10308 states and 27013 transitions. [2022-03-03 17:13:12,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:13:12,924 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:12,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:12,939 INFO L225 Difference]: With dead ends: 10308 [2022-03-03 17:13:12,939 INFO L226 Difference]: Without dead ends: 10042 [2022-03-03 17:13:12,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=794, Invalid=2746, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:13:12,940 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1059 mSDsluCounter, 7185 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 7436 SdHoareTripleChecker+Invalid, 1481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:12,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1059 Valid, 7436 Invalid, 1481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:13:12,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10042 states. [2022-03-03 17:13:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10042 to 5447. [2022-03-03 17:13:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.631839882482556) internal successors, (14333), 5446 states have internal predecessors, (14333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:13,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14333 transitions. [2022-03-03 17:13:13,049 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14333 transitions. Word has length 135 [2022-03-03 17:13:13,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:13,049 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14333 transitions. [2022-03-03 17:13:13,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:13,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14333 transitions. [2022-03-03 17:13:13,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:13,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:13,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:13,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable308 [2022-03-03 17:13:13,055 INFO L402 AbstractCegarLoop]: === Iteration 310 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:13,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:13,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1065489529, now seen corresponding path program 259 times [2022-03-03 17:13:13,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:13,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748199797] [2022-03-03 17:13:13,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:13,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:13,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:13,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748199797] [2022-03-03 17:13:13,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748199797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:13,454 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:13,454 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:13,454 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475580748] [2022-03-03 17:13:13,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:13,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:13,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:13,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:13,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:13,455 INFO L87 Difference]: Start difference. First operand 5447 states and 14333 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:15,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:15,541 INFO L93 Difference]: Finished difference Result 10270 states and 26913 transitions. [2022-03-03 17:13:15,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:13:15,541 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:15,556 INFO L225 Difference]: With dead ends: 10270 [2022-03-03 17:13:15,556 INFO L226 Difference]: Without dead ends: 9999 [2022-03-03 17:13:15,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=842, Invalid=2818, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:13:15,557 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1060 mSDsluCounter, 6730 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 7002 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:15,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 7002 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1389 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:15,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9999 states. [2022-03-03 17:13:15,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9999 to 5439. [2022-03-03 17:13:15,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5439 states, 5438 states have (on average 2.632401618242001) internal successors, (14315), 5438 states have internal predecessors, (14315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:15,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5439 states to 5439 states and 14315 transitions. [2022-03-03 17:13:15,651 INFO L78 Accepts]: Start accepts. Automaton has 5439 states and 14315 transitions. Word has length 135 [2022-03-03 17:13:15,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:15,651 INFO L470 AbstractCegarLoop]: Abstraction has 5439 states and 14315 transitions. [2022-03-03 17:13:15,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:15,651 INFO L276 IsEmpty]: Start isEmpty. Operand 5439 states and 14315 transitions. [2022-03-03 17:13:15,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:15,657 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:15,657 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] [2022-03-03 17:13:15,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable309 [2022-03-03 17:13:15,657 INFO L402 AbstractCegarLoop]: === Iteration 311 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:15,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:15,657 INFO L85 PathProgramCache]: Analyzing trace with hash -692709363, now seen corresponding path program 260 times [2022-03-03 17:13:15,657 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:15,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982196109] [2022-03-03 17:13:15,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:15,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:16,024 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:16,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982196109] [2022-03-03 17:13:16,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982196109] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:16,024 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:16,024 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:16,024 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133068278] [2022-03-03 17:13:16,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:16,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:16,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:16,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:16,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:16,025 INFO L87 Difference]: Start difference. First operand 5439 states and 14315 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:18,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:18,470 INFO L93 Difference]: Finished difference Result 10440 states and 27351 transitions. [2022-03-03 17:13:18,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:13:18,470 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:18,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:18,481 INFO L225 Difference]: With dead ends: 10440 [2022-03-03 17:13:18,482 INFO L226 Difference]: Without dead ends: 10143 [2022-03-03 17:13:18,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=981, Invalid=3309, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:13:18,482 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1135 mSDsluCounter, 6907 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 7157 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:18,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1135 Valid, 7157 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10143 states. [2022-03-03 17:13:18,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10143 to 5443. [2022-03-03 17:13:18,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.631753031973539) internal successors, (14322), 5442 states have internal predecessors, (14322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:18,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14322 transitions. [2022-03-03 17:13:18,562 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14322 transitions. Word has length 135 [2022-03-03 17:13:18,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:18,562 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14322 transitions. [2022-03-03 17:13:18,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:18,562 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14322 transitions. [2022-03-03 17:13:18,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:18,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:18,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:18,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable310 [2022-03-03 17:13:18,568 INFO L402 AbstractCegarLoop]: === Iteration 312 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:18,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:18,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1185680153, now seen corresponding path program 261 times [2022-03-03 17:13:18,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:18,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108097138] [2022-03-03 17:13:18,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:18,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:18,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:18,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:18,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108097138] [2022-03-03 17:13:18,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108097138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:18,955 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:18,955 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:18,955 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230243668] [2022-03-03 17:13:18,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:18,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:18,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:18,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:18,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:18,956 INFO L87 Difference]: Start difference. First operand 5443 states and 14322 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:20,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:20,685 INFO L93 Difference]: Finished difference Result 10324 states and 27053 transitions. [2022-03-03 17:13:20,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:13:20,686 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:20,700 INFO L225 Difference]: With dead ends: 10324 [2022-03-03 17:13:20,700 INFO L226 Difference]: Without dead ends: 10058 [2022-03-03 17:13:20,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=824, Invalid=2836, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:13:20,701 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1065 mSDsluCounter, 6805 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 7065 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:20,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1065 Valid, 7065 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:20,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10058 states. [2022-03-03 17:13:20,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10058 to 5447. [2022-03-03 17:13:20,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6311053984575836) internal successors, (14329), 5446 states have internal predecessors, (14329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14329 transitions. [2022-03-03 17:13:20,788 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14329 transitions. Word has length 135 [2022-03-03 17:13:20,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:20,788 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14329 transitions. [2022-03-03 17:13:20,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:20,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14329 transitions. [2022-03-03 17:13:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:20,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:20,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:20,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable311 [2022-03-03 17:13:20,794 INFO L402 AbstractCegarLoop]: === Iteration 313 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:20,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:20,794 INFO L85 PathProgramCache]: Analyzing trace with hash -983168319, now seen corresponding path program 262 times [2022-03-03 17:13:20,794 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:20,794 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129921215] [2022-03-03 17:13:20,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:20,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:21,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:21,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129921215] [2022-03-03 17:13:21,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129921215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:21,112 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:21,112 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:21,112 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683345071] [2022-03-03 17:13:21,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:21,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:21,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:21,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:21,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:21,113 INFO L87 Difference]: Start difference. First operand 5447 states and 14329 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:22,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:22,918 INFO L93 Difference]: Finished difference Result 10270 states and 26909 transitions. [2022-03-03 17:13:22,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:13:22,918 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:22,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:22,930 INFO L225 Difference]: With dead ends: 10270 [2022-03-03 17:13:22,930 INFO L226 Difference]: Without dead ends: 9995 [2022-03-03 17:13:22,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=814, Invalid=2726, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:13:22,931 INFO L933 BasicCegarLoop]: 381 mSDtfsCounter, 1041 mSDsluCounter, 6708 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 6977 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:22,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 6977 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:22,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9995 states. [2022-03-03 17:13:22,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9995 to 5435. [2022-03-03 17:13:23,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.632315053367685) internal successors, (14304), 5434 states have internal predecessors, (14304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:23,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14304 transitions. [2022-03-03 17:13:23,012 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14304 transitions. Word has length 135 [2022-03-03 17:13:23,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:23,013 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14304 transitions. [2022-03-03 17:13:23,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:23,013 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14304 transitions. [2022-03-03 17:13:23,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:23,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:23,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:23,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable312 [2022-03-03 17:13:23,018 INFO L402 AbstractCegarLoop]: === Iteration 314 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:23,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:23,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1602474371, now seen corresponding path program 263 times [2022-03-03 17:13:23,019 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:23,019 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345901905] [2022-03-03 17:13:23,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:23,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:23,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:23,440 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:23,440 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345901905] [2022-03-03 17:13:23,440 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345901905] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:23,440 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:23,440 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:23,440 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654594486] [2022-03-03 17:13:23,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:23,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:23,440 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:23,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:23,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:23,441 INFO L87 Difference]: Start difference. First operand 5435 states and 14304 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:26,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:26,152 INFO L93 Difference]: Finished difference Result 10463 states and 27383 transitions. [2022-03-03 17:13:26,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-03 17:13:26,153 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:26,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:26,166 INFO L225 Difference]: With dead ends: 10463 [2022-03-03 17:13:26,166 INFO L226 Difference]: Without dead ends: 10073 [2022-03-03 17:13:26,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1159, Invalid=3811, Unknown=0, NotChecked=0, Total=4970 [2022-03-03 17:13:26,167 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1195 mSDsluCounter, 7394 mSDsCounter, 0 mSdLazyCounter, 1525 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 7626 SdHoareTripleChecker+Invalid, 1525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:26,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 7626 Invalid, 1525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1525 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:13:26,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10073 states. [2022-03-03 17:13:26,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10073 to 5447. [2022-03-03 17:13:26,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.630370914432611) internal successors, (14325), 5446 states have internal predecessors, (14325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:26,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14325 transitions. [2022-03-03 17:13:26,258 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14325 transitions. Word has length 135 [2022-03-03 17:13:26,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:26,258 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14325 transitions. [2022-03-03 17:13:26,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:26,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14325 transitions. [2022-03-03 17:13:26,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:26,264 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:26,264 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:26,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable313 [2022-03-03 17:13:26,265 INFO L402 AbstractCegarLoop]: === Iteration 315 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:26,265 INFO L85 PathProgramCache]: Analyzing trace with hash -1995939407, now seen corresponding path program 264 times [2022-03-03 17:13:26,265 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:26,265 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097274545] [2022-03-03 17:13:26,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:26,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:26,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:26,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:26,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097274545] [2022-03-03 17:13:26,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097274545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:26,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:26,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:26,606 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174367388] [2022-03-03 17:13:26,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:26,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:26,606 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:26,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:26,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:26,607 INFO L87 Difference]: Start difference. First operand 5447 states and 14325 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:28,588 INFO L93 Difference]: Finished difference Result 10320 states and 27009 transitions. [2022-03-03 17:13:28,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:13:28,588 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:28,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:28,600 INFO L225 Difference]: With dead ends: 10320 [2022-03-03 17:13:28,601 INFO L226 Difference]: Without dead ends: 10023 [2022-03-03 17:13:28,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1006, Invalid=3416, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:13:28,601 INFO L933 BasicCegarLoop]: 393 mSDtfsCounter, 1148 mSDsluCounter, 6905 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 7156 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:28,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 7156 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:28,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10023 states. [2022-03-03 17:13:28,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10023 to 5451. [2022-03-03 17:13:28,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.629724770642202) internal successors, (14332), 5450 states have internal predecessors, (14332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:28,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14332 transitions. [2022-03-03 17:13:28,684 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14332 transitions. Word has length 135 [2022-03-03 17:13:28,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:28,684 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14332 transitions. [2022-03-03 17:13:28,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:28,684 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14332 transitions. [2022-03-03 17:13:28,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:28,690 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:28,690 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:28,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable314 [2022-03-03 17:13:28,690 INFO L402 AbstractCegarLoop]: === Iteration 316 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:28,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash -117549891, now seen corresponding path program 265 times [2022-03-03 17:13:28,690 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:28,690 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470999737] [2022-03-03 17:13:28,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:28,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:28,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:28,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:28,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470999737] [2022-03-03 17:13:28,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470999737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:28,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:28,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:28,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043062961] [2022-03-03 17:13:28,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:28,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:28,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:28,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:28,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:28,985 INFO L87 Difference]: Start difference. First operand 5451 states and 14332 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:30,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:30,598 INFO L93 Difference]: Finished difference Result 10220 states and 26755 transitions. [2022-03-03 17:13:30,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:13:30,598 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:30,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:30,612 INFO L225 Difference]: With dead ends: 10220 [2022-03-03 17:13:30,613 INFO L226 Difference]: Without dead ends: 9954 [2022-03-03 17:13:30,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=818, Invalid=2842, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:13:30,625 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1078 mSDsluCounter, 6773 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 7030 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:30,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1078 Valid, 7030 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:13:30,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9954 states. [2022-03-03 17:13:30,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9954 to 5455. [2022-03-03 17:13:30,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.629079574624129) internal successors, (14339), 5454 states have internal predecessors, (14339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:30,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14339 transitions. [2022-03-03 17:13:30,722 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14339 transitions. Word has length 135 [2022-03-03 17:13:30,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:30,722 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14339 transitions. [2022-03-03 17:13:30,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:30,722 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14339 transitions. [2022-03-03 17:13:30,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:30,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:30,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:30,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable315 [2022-03-03 17:13:30,728 INFO L402 AbstractCegarLoop]: === Iteration 317 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:30,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:30,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2008568933, now seen corresponding path program 266 times [2022-03-03 17:13:30,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:30,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449640646] [2022-03-03 17:13:30,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:30,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:31,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:31,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449640646] [2022-03-03 17:13:31,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449640646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:31,186 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:31,186 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:31,186 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991783634] [2022-03-03 17:13:31,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:31,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:31,186 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:31,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:31,186 INFO L87 Difference]: Start difference. First operand 5455 states and 14339 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:33,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:33,335 INFO L93 Difference]: Finished difference Result 10134 states and 26523 transitions. [2022-03-03 17:13:33,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:13:33,335 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:33,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:33,349 INFO L225 Difference]: With dead ends: 10134 [2022-03-03 17:13:33,349 INFO L226 Difference]: Without dead ends: 9803 [2022-03-03 17:13:33,349 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=783, Invalid=2639, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:13:33,350 INFO L933 BasicCegarLoop]: 378 mSDtfsCounter, 1031 mSDsluCounter, 7048 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 7307 SdHoareTripleChecker+Invalid, 1439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:33,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 7307 Invalid, 1439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:33,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9803 states. [2022-03-03 17:13:33,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9803 to 5387. [2022-03-03 17:13:33,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5387 states, 5386 states have (on average 2.632008911994059) internal successors, (14176), 5386 states have internal predecessors, (14176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5387 states to 5387 states and 14176 transitions. [2022-03-03 17:13:33,436 INFO L78 Accepts]: Start accepts. Automaton has 5387 states and 14176 transitions. Word has length 135 [2022-03-03 17:13:33,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:33,436 INFO L470 AbstractCegarLoop]: Abstraction has 5387 states and 14176 transitions. [2022-03-03 17:13:33,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:33,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5387 states and 14176 transitions. [2022-03-03 17:13:33,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:33,442 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:33,442 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:33,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable316 [2022-03-03 17:13:33,442 INFO L402 AbstractCegarLoop]: === Iteration 318 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:33,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:33,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1507648237, now seen corresponding path program 267 times [2022-03-03 17:13:33,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:33,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729516799] [2022-03-03 17:13:33,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:33,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:33,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:33,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729516799] [2022-03-03 17:13:33,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729516799] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:33,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:33,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:33,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817133165] [2022-03-03 17:13:33,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:33,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:33,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:33,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:33,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:33,783 INFO L87 Difference]: Start difference. First operand 5387 states and 14176 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:36,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:36,011 INFO L93 Difference]: Finished difference Result 10326 states and 27055 transitions. [2022-03-03 17:13:36,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:13:36,011 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:36,025 INFO L225 Difference]: With dead ends: 10326 [2022-03-03 17:13:36,025 INFO L226 Difference]: Without dead ends: 10035 [2022-03-03 17:13:36,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=963, Invalid=3069, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:13:36,026 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 1137 mSDsluCounter, 7072 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 7331 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:36,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 7331 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:36,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10035 states. [2022-03-03 17:13:36,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10035 to 5411. [2022-03-03 17:13:36,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 2.6317929759704253) internal successors, (14238), 5410 states have internal predecessors, (14238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:36,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 14238 transitions. [2022-03-03 17:13:36,117 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 14238 transitions. Word has length 135 [2022-03-03 17:13:36,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:36,117 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 14238 transitions. [2022-03-03 17:13:36,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:36,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 14238 transitions. [2022-03-03 17:13:36,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:36,122 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:36,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:36,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable317 [2022-03-03 17:13:36,122 INFO L402 AbstractCegarLoop]: === Iteration 319 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:36,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:36,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1215942209, now seen corresponding path program 268 times [2022-03-03 17:13:36,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:36,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331686199] [2022-03-03 17:13:36,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:36,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:36,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:36,542 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:36,542 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331686199] [2022-03-03 17:13:36,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331686199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:36,543 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:36,543 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:36,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584731224] [2022-03-03 17:13:36,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:36,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:36,543 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:36,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:36,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:36,543 INFO L87 Difference]: Start difference. First operand 5411 states and 14238 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:38,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:38,731 INFO L93 Difference]: Finished difference Result 10340 states and 27085 transitions. [2022-03-03 17:13:38,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:13:38,731 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:38,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:38,745 INFO L225 Difference]: With dead ends: 10340 [2022-03-03 17:13:38,745 INFO L226 Difference]: Without dead ends: 10074 [2022-03-03 17:13:38,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=788, Invalid=2752, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:13:38,746 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1079 mSDsluCounter, 7169 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 7418 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:38,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 7418 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:38,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10074 states. [2022-03-03 17:13:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10074 to 5415. [2022-03-03 17:13:38,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.631141485038788) internal successors, (14245), 5414 states have internal predecessors, (14245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:38,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14245 transitions. [2022-03-03 17:13:38,834 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14245 transitions. Word has length 135 [2022-03-03 17:13:38,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:38,834 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14245 transitions. [2022-03-03 17:13:38,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:38,835 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14245 transitions. [2022-03-03 17:13:38,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:38,840 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:38,840 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:38,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable318 [2022-03-03 17:13:38,840 INFO L402 AbstractCegarLoop]: === Iteration 320 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:38,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:38,840 INFO L85 PathProgramCache]: Analyzing trace with hash -952906263, now seen corresponding path program 269 times [2022-03-03 17:13:38,840 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:38,840 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229857061] [2022-03-03 17:13:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:38,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:39,250 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:39,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229857061] [2022-03-03 17:13:39,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229857061] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:39,250 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:39,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:39,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760901324] [2022-03-03 17:13:39,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:39,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:39,250 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:39,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:39,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:39,251 INFO L87 Difference]: Start difference. First operand 5415 states and 14245 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:41,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:41,272 INFO L93 Difference]: Finished difference Result 10302 states and 26985 transitions. [2022-03-03 17:13:41,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:13:41,273 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:41,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:41,287 INFO L225 Difference]: With dead ends: 10302 [2022-03-03 17:13:41,287 INFO L226 Difference]: Without dead ends: 10031 [2022-03-03 17:13:41,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=847, Invalid=2813, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:13:41,288 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1077 mSDsluCounter, 6690 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 6958 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:41,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 6958 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:41,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2022-03-03 17:13:41,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 5407. [2022-03-03 17:13:41,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 5406 states have (on average 2.6317055123936366) internal successors, (14227), 5406 states have internal predecessors, (14227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 14227 transitions. [2022-03-03 17:13:41,396 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 14227 transitions. Word has length 135 [2022-03-03 17:13:41,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:41,396 INFO L470 AbstractCegarLoop]: Abstraction has 5407 states and 14227 transitions. [2022-03-03 17:13:41,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:41,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 14227 transitions. [2022-03-03 17:13:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:41,402 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:41,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:41,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable319 [2022-03-03 17:13:41,402 INFO L402 AbstractCegarLoop]: === Iteration 321 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:41,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:41,402 INFO L85 PathProgramCache]: Analyzing trace with hash -580126097, now seen corresponding path program 270 times [2022-03-03 17:13:41,402 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:41,402 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363439089] [2022-03-03 17:13:41,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:41,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:41,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:41,790 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:41,790 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363439089] [2022-03-03 17:13:41,790 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363439089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:41,790 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:41,790 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:41,790 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471399971] [2022-03-03 17:13:41,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:41,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:41,791 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:41,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:41,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:41,791 INFO L87 Difference]: Start difference. First operand 5407 states and 14227 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:43,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:43,637 INFO L93 Difference]: Finished difference Result 10472 states and 27423 transitions. [2022-03-03 17:13:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:13:43,637 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:43,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:43,651 INFO L225 Difference]: With dead ends: 10472 [2022-03-03 17:13:43,651 INFO L226 Difference]: Without dead ends: 10175 [2022-03-03 17:13:43,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=974, Invalid=3316, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:13:43,652 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1149 mSDsluCounter, 6897 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:43,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 7145 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10175 states. [2022-03-03 17:13:43,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10175 to 5411. [2022-03-03 17:13:43,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 2.631053604436229) internal successors, (14234), 5410 states have internal predecessors, (14234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:43,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 14234 transitions. [2022-03-03 17:13:43,731 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 14234 transitions. Word has length 135 [2022-03-03 17:13:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:43,731 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 14234 transitions. [2022-03-03 17:13:43,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 14234 transitions. [2022-03-03 17:13:43,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:43,737 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:43,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:43,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable320 [2022-03-03 17:13:43,737 INFO L402 AbstractCegarLoop]: === Iteration 322 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:43,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:43,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1298263419, now seen corresponding path program 271 times [2022-03-03 17:13:43,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:43,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608220205] [2022-03-03 17:13:43,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:43,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:43,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:43,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:43,998 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:43,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608220205] [2022-03-03 17:13:43,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608220205] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:43,998 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:43,998 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:43,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14262210] [2022-03-03 17:13:43,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:43,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:43,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:43,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:43,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:43,999 INFO L87 Difference]: Start difference. First operand 5411 states and 14234 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:45,832 INFO L93 Difference]: Finished difference Result 10356 states and 27125 transitions. [2022-03-03 17:13:45,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:13:45,832 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:45,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:45,844 INFO L225 Difference]: With dead ends: 10356 [2022-03-03 17:13:45,844 INFO L226 Difference]: Without dead ends: 10090 [2022-03-03 17:13:45,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=821, Invalid=2839, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:13:45,844 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 1070 mSDsluCounter, 6821 mSDsCounter, 0 mSdLazyCounter, 1366 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 7077 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:45,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 7077 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1366 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:13:45,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10090 states. [2022-03-03 17:13:45,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10090 to 5415. [2022-03-03 17:13:45,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.630402659770964) internal successors, (14241), 5414 states have internal predecessors, (14241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14241 transitions. [2022-03-03 17:13:45,927 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14241 transitions. Word has length 135 [2022-03-03 17:13:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:45,927 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14241 transitions. [2022-03-03 17:13:45,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:45,927 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14241 transitions. [2022-03-03 17:13:45,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:45,932 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:45,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:45,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable321 [2022-03-03 17:13:45,932 INFO L402 AbstractCegarLoop]: === Iteration 323 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:45,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:45,933 INFO L85 PathProgramCache]: Analyzing trace with hash -870585053, now seen corresponding path program 272 times [2022-03-03 17:13:45,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:45,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425703795] [2022-03-03 17:13:45,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:45,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:46,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:46,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:46,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425703795] [2022-03-03 17:13:46,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425703795] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:46,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:46,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:46,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210229632] [2022-03-03 17:13:46,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:46,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:46,263 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:46,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:46,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:46,263 INFO L87 Difference]: Start difference. First operand 5415 states and 14241 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:48,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:48,534 INFO L93 Difference]: Finished difference Result 10302 states and 26981 transitions. [2022-03-03 17:13:48,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:13:48,535 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:48,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:48,548 INFO L225 Difference]: With dead ends: 10302 [2022-03-03 17:13:48,548 INFO L226 Difference]: Without dead ends: 10027 [2022-03-03 17:13:48,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=817, Invalid=2723, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:13:48,549 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1082 mSDsluCounter, 6668 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 6933 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:48,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1082 Valid, 6933 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:48,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10027 states. [2022-03-03 17:13:48,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10027 to 5403. [2022-03-03 17:13:48,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5403 states, 5402 states have (on average 2.6316179192891522) internal successors, (14216), 5402 states have internal predecessors, (14216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:48,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5403 states to 5403 states and 14216 transitions. [2022-03-03 17:13:48,631 INFO L78 Accepts]: Start accepts. Automaton has 5403 states and 14216 transitions. Word has length 135 [2022-03-03 17:13:48,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:48,631 INFO L470 AbstractCegarLoop]: Abstraction has 5403 states and 14216 transitions. [2022-03-03 17:13:48,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5403 states and 14216 transitions. [2022-03-03 17:13:48,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:48,637 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:48,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:48,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable322 [2022-03-03 17:13:48,637 INFO L402 AbstractCegarLoop]: === Iteration 324 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:48,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:48,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1489891105, now seen corresponding path program 273 times [2022-03-03 17:13:48,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:48,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500289632] [2022-03-03 17:13:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:48,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:49,012 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:49,012 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500289632] [2022-03-03 17:13:49,012 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500289632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:49,012 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:49,012 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:49,012 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745509450] [2022-03-03 17:13:49,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:49,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:49,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:49,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:49,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:49,013 INFO L87 Difference]: Start difference. First operand 5403 states and 14216 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:51,843 INFO L93 Difference]: Finished difference Result 10639 states and 27851 transitions. [2022-03-03 17:13:51,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:13:51,844 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:51,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:51,855 INFO L225 Difference]: With dead ends: 10639 [2022-03-03 17:13:51,855 INFO L226 Difference]: Without dead ends: 10249 [2022-03-03 17:13:51,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 799 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1180, Invalid=3932, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:13:51,856 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 1218 mSDsluCounter, 6636 mSDsCounter, 0 mSdLazyCounter, 1348 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 6886 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:51,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1218 Valid, 6886 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:51,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10249 states. [2022-03-03 17:13:51,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10249 to 5415. [2022-03-03 17:13:51,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.62966383450314) internal successors, (14237), 5414 states have internal predecessors, (14237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:51,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14237 transitions. [2022-03-03 17:13:51,934 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14237 transitions. Word has length 135 [2022-03-03 17:13:51,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:51,934 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14237 transitions. [2022-03-03 17:13:51,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:51,934 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14237 transitions. [2022-03-03 17:13:51,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:51,940 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:51,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:51,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable323 [2022-03-03 17:13:51,940 INFO L402 AbstractCegarLoop]: === Iteration 325 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:51,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:51,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1883356141, now seen corresponding path program 274 times [2022-03-03 17:13:51,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:51,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972354055] [2022-03-03 17:13:51,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:51,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:51,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:52,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:52,347 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:52,347 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972354055] [2022-03-03 17:13:52,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972354055] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:52,347 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:52,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:52,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930732030] [2022-03-03 17:13:52,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:52,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:52,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:52,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:52,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:52,348 INFO L87 Difference]: Start difference. First operand 5415 states and 14237 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:54,945 INFO L93 Difference]: Finished difference Result 10488 states and 27455 transitions. [2022-03-03 17:13:54,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:13:54,945 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:54,959 INFO L225 Difference]: With dead ends: 10488 [2022-03-03 17:13:54,959 INFO L226 Difference]: Without dead ends: 10191 [2022-03-03 17:13:54,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=996, Invalid=3426, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:13:54,960 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1147 mSDsluCounter, 6933 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 7181 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:54,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 7181 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:13:54,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10191 states. [2022-03-03 17:13:55,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10191 to 5419. [2022-03-03 17:13:55,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5419 states, 5418 states have (on average 2.629014396456257) internal successors, (14244), 5418 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:55,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5419 states to 5419 states and 14244 transitions. [2022-03-03 17:13:55,059 INFO L78 Accepts]: Start accepts. Automaton has 5419 states and 14244 transitions. Word has length 135 [2022-03-03 17:13:55,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:55,060 INFO L470 AbstractCegarLoop]: Abstraction has 5419 states and 14244 transitions. [2022-03-03 17:13:55,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:55,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5419 states and 14244 transitions. [2022-03-03 17:13:55,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:55,065 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:55,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:55,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable324 [2022-03-03 17:13:55,066 INFO L402 AbstractCegarLoop]: === Iteration 326 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:55,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:55,066 INFO L85 PathProgramCache]: Analyzing trace with hash -4966625, now seen corresponding path program 275 times [2022-03-03 17:13:55,066 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:55,066 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236760222] [2022-03-03 17:13:55,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:55,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:55,493 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:55,493 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236760222] [2022-03-03 17:13:55,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236760222] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:55,493 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:55,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:55,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942260671] [2022-03-03 17:13:55,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:55,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:55,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:55,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:55,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:55,494 INFO L87 Difference]: Start difference. First operand 5419 states and 14244 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:57,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:13:57,589 INFO L93 Difference]: Finished difference Result 10372 states and 27157 transitions. [2022-03-03 17:13:57,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:13:57,589 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:13:57,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:13:57,601 INFO L225 Difference]: With dead ends: 10372 [2022-03-03 17:13:57,601 INFO L226 Difference]: Without dead ends: 10106 [2022-03-03 17:13:57,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=822, Invalid=2838, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:13:57,602 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1077 mSDsluCounter, 6031 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 6303 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:13:57,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1077 Valid, 6303 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:13:57,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10106 states. [2022-03-03 17:13:57,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10106 to 5423. [2022-03-03 17:13:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5423 states, 5422 states have (on average 2.6283659166359277) internal successors, (14251), 5422 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5423 states to 5423 states and 14251 transitions. [2022-03-03 17:13:57,682 INFO L78 Accepts]: Start accepts. Automaton has 5423 states and 14251 transitions. Word has length 135 [2022-03-03 17:13:57,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:13:57,682 INFO L470 AbstractCegarLoop]: Abstraction has 5423 states and 14251 transitions. [2022-03-03 17:13:57,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:13:57,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5423 states and 14251 transitions. [2022-03-03 17:13:57,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:13:57,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:13:57,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:13:57,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable325 [2022-03-03 17:13:57,706 INFO L402 AbstractCegarLoop]: === Iteration 327 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:13:57,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:13:57,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2121152199, now seen corresponding path program 276 times [2022-03-03 17:13:57,707 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:13:57,707 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044934951] [2022-03-03 17:13:57,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:13:57,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:13:57,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:13:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:13:58,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:13:58,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044934951] [2022-03-03 17:13:58,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044934951] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:13:58,113 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:13:58,113 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:13:58,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933401178] [2022-03-03 17:13:58,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:13:58,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:13:58,113 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:13:58,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:13:58,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:13:58,113 INFO L87 Difference]: Start difference. First operand 5423 states and 14251 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:00,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:00,090 INFO L93 Difference]: Finished difference Result 10310 states and 26991 transitions. [2022-03-03 17:14:00,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:14:00,090 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:00,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:00,104 INFO L225 Difference]: With dead ends: 10310 [2022-03-03 17:14:00,104 INFO L226 Difference]: Without dead ends: 10015 [2022-03-03 17:14:00,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=791, Invalid=2631, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:14:00,105 INFO L933 BasicCegarLoop]: 375 mSDtfsCounter, 1043 mSDsluCounter, 6340 mSDsCounter, 0 mSdLazyCounter, 1263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 6606 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:00,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1043 Valid, 6606 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1263 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:14:00,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10015 states. [2022-03-03 17:14:00,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10015 to 5391. [2022-03-03 17:14:00,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5391 states, 5390 states have (on average 2.6313543599257887) internal successors, (14183), 5390 states have internal predecessors, (14183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:00,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5391 states to 5391 states and 14183 transitions. [2022-03-03 17:14:00,200 INFO L78 Accepts]: Start accepts. Automaton has 5391 states and 14183 transitions. Word has length 135 [2022-03-03 17:14:00,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:00,200 INFO L470 AbstractCegarLoop]: Abstraction has 5391 states and 14183 transitions. [2022-03-03 17:14:00,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:00,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5391 states and 14183 transitions. [2022-03-03 17:14:00,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:00,206 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:00,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:00,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable326 [2022-03-03 17:14:00,206 INFO L402 AbstractCegarLoop]: === Iteration 328 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:00,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash -690210675, now seen corresponding path program 277 times [2022-03-03 17:14:00,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:00,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610365397] [2022-03-03 17:14:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:00,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:00,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:00,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:00,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610365397] [2022-03-03 17:14:00,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610365397] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:00,645 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:00,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:00,646 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958677053] [2022-03-03 17:14:00,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:00,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:00,646 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:00,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:00,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:00,646 INFO L87 Difference]: Start difference. First operand 5391 states and 14183 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:03,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:03,955 INFO L93 Difference]: Finished difference Result 10673 states and 27845 transitions. [2022-03-03 17:14:03,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:14:03,955 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:03,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:03,969 INFO L225 Difference]: With dead ends: 10673 [2022-03-03 17:14:03,969 INFO L226 Difference]: Without dead ends: 10252 [2022-03-03 17:14:03,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 888 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1359, Invalid=4341, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:14:03,970 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1463 mSDsluCounter, 7112 mSDsCounter, 0 mSdLazyCounter, 1367 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 7348 SdHoareTripleChecker+Invalid, 1367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:03,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1463 Valid, 7348 Invalid, 1367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1367 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:14:03,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10252 states. [2022-03-03 17:14:04,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10252 to 5395. [2022-03-03 17:14:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5395 states, 5394 states have (on average 2.6307007786429364) internal successors, (14190), 5394 states have internal predecessors, (14190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:04,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5395 states to 5395 states and 14190 transitions. [2022-03-03 17:14:04,063 INFO L78 Accepts]: Start accepts. Automaton has 5395 states and 14190 transitions. Word has length 135 [2022-03-03 17:14:04,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:04,063 INFO L470 AbstractCegarLoop]: Abstraction has 5395 states and 14190 transitions. [2022-03-03 17:14:04,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:04,064 INFO L276 IsEmpty]: Start isEmpty. Operand 5395 states and 14190 transitions. [2022-03-03 17:14:04,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:04,069 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:04,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:04,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable327 [2022-03-03 17:14:04,070 INFO L402 AbstractCegarLoop]: === Iteration 329 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:04,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash 407009463, now seen corresponding path program 278 times [2022-03-03 17:14:04,070 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:04,070 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360692331] [2022-03-03 17:14:04,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:04,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:04,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:04,474 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:04,474 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360692331] [2022-03-03 17:14:04,474 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360692331] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:04,474 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:04,474 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:04,474 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376904960] [2022-03-03 17:14:04,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:04,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:04,474 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:04,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:04,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:04,475 INFO L87 Difference]: Start difference. First operand 5395 states and 14190 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:07,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:07,485 INFO L93 Difference]: Finished difference Result 10471 states and 27385 transitions. [2022-03-03 17:14:07,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:14:07,485 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:07,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:07,497 INFO L225 Difference]: With dead ends: 10471 [2022-03-03 17:14:07,497 INFO L226 Difference]: Without dead ends: 10081 [2022-03-03 17:14:07,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 786 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1196, Invalid=4060, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:14:07,497 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1215 mSDsluCounter, 7022 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 7265 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:07,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1215 Valid, 7265 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:14:07,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10081 states. [2022-03-03 17:14:07,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10081 to 5407. [2022-03-03 17:14:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5407 states, 5406 states have (on average 2.628745837957825) internal successors, (14211), 5406 states have internal predecessors, (14211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:07,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5407 states to 5407 states and 14211 transitions. [2022-03-03 17:14:07,573 INFO L78 Accepts]: Start accepts. Automaton has 5407 states and 14211 transitions. Word has length 135 [2022-03-03 17:14:07,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:07,573 INFO L470 AbstractCegarLoop]: Abstraction has 5407 states and 14211 transitions. [2022-03-03 17:14:07,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:07,573 INFO L276 IsEmpty]: Start isEmpty. Operand 5407 states and 14211 transitions. [2022-03-03 17:14:07,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:07,578 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:07,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:07,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable328 [2022-03-03 17:14:07,578 INFO L402 AbstractCegarLoop]: === Iteration 330 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:07,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:07,578 INFO L85 PathProgramCache]: Analyzing trace with hash -738086741, now seen corresponding path program 279 times [2022-03-03 17:14:07,579 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:07,579 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095451250] [2022-03-03 17:14:07,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:07,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:07,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:07,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:07,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095451250] [2022-03-03 17:14:07,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095451250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:07,984 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:07,984 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:07,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463910684] [2022-03-03 17:14:07,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:07,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:07,985 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:07,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:07,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:07,985 INFO L87 Difference]: Start difference. First operand 5407 states and 14211 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:10,541 INFO L93 Difference]: Finished difference Result 10328 states and 27011 transitions. [2022-03-03 17:14:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:14:10,542 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:10,557 INFO L225 Difference]: With dead ends: 10328 [2022-03-03 17:14:10,557 INFO L226 Difference]: Without dead ends: 10031 [2022-03-03 17:14:10,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=986, Invalid=3436, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:14:10,558 INFO L933 BasicCegarLoop]: 389 mSDtfsCounter, 1133 mSDsluCounter, 7274 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 7512 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:10,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1133 Valid, 7512 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:14:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10031 states. [2022-03-03 17:14:10,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10031 to 5411. [2022-03-03 17:14:10,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5411 states, 5410 states have (on average 2.6280961182994456) internal successors, (14218), 5410 states have internal predecessors, (14218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:10,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5411 states to 5411 states and 14218 transitions. [2022-03-03 17:14:10,655 INFO L78 Accepts]: Start accepts. Automaton has 5411 states and 14218 transitions. Word has length 135 [2022-03-03 17:14:10,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:10,656 INFO L470 AbstractCegarLoop]: Abstraction has 5411 states and 14218 transitions. [2022-03-03 17:14:10,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:10,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5411 states and 14218 transitions. [2022-03-03 17:14:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:10,661 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:10,662 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:10,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable329 [2022-03-03 17:14:10,662 INFO L402 AbstractCegarLoop]: === Iteration 331 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:10,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:10,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1140302775, now seen corresponding path program 280 times [2022-03-03 17:14:10,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:10,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530921856] [2022-03-03 17:14:10,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:10,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:11,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:11,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530921856] [2022-03-03 17:14:11,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530921856] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:11,048 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:11,048 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:11,048 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241710976] [2022-03-03 17:14:11,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:11,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:11,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:11,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:11,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:11,048 INFO L87 Difference]: Start difference. First operand 5411 states and 14218 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:13,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:13,210 INFO L93 Difference]: Finished difference Result 10228 states and 26757 transitions. [2022-03-03 17:14:13,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:14:13,210 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:13,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:13,221 INFO L225 Difference]: With dead ends: 10228 [2022-03-03 17:14:13,221 INFO L226 Difference]: Without dead ends: 9962 [2022-03-03 17:14:13,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=811, Invalid=2849, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:14:13,221 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1081 mSDsluCounter, 6754 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 7007 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:13,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1081 Valid, 7007 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:14:13,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9962 states. [2022-03-03 17:14:13,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9962 to 5415. [2022-03-03 17:14:13,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5415 states, 5414 states have (on average 2.6274473586996674) internal successors, (14225), 5414 states have internal predecessors, (14225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:13,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5415 states to 5415 states and 14225 transitions. [2022-03-03 17:14:13,291 INFO L78 Accepts]: Start accepts. Automaton has 5415 states and 14225 transitions. Word has length 135 [2022-03-03 17:14:13,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:13,291 INFO L470 AbstractCegarLoop]: Abstraction has 5415 states and 14225 transitions. [2022-03-03 17:14:13,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:13,291 INFO L276 IsEmpty]: Start isEmpty. Operand 5415 states and 14225 transitions. [2022-03-03 17:14:13,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:13,297 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:13,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:13,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable330 [2022-03-03 17:14:13,297 INFO L402 AbstractCegarLoop]: === Iteration 332 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:13,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:13,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1028545697, now seen corresponding path program 281 times [2022-03-03 17:14:13,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:13,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933832815] [2022-03-03 17:14:13,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:13,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:13,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:13,727 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:13,727 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933832815] [2022-03-03 17:14:13,727 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933832815] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:13,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:13,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:13,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996401371] [2022-03-03 17:14:13,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:13,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:13,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:13,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:13,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:13,728 INFO L87 Difference]: Start difference. First operand 5415 states and 14225 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:15,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:15,579 INFO L93 Difference]: Finished difference Result 10094 states and 26409 transitions. [2022-03-03 17:14:15,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:14:15,579 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:15,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:15,592 INFO L225 Difference]: With dead ends: 10094 [2022-03-03 17:14:15,592 INFO L226 Difference]: Without dead ends: 9791 [2022-03-03 17:14:15,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=771, Invalid=2535, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:14:15,592 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1031 mSDsluCounter, 6256 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:15,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 6523 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:14:15,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9791 states. [2022-03-03 17:14:15,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9791 to 5375. [2022-03-03 17:14:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5375 states, 5374 states have (on average 2.6317454410122814) internal successors, (14143), 5374 states have internal predecessors, (14143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:15,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 14143 transitions. [2022-03-03 17:14:15,676 INFO L78 Accepts]: Start accepts. Automaton has 5375 states and 14143 transitions. Word has length 135 [2022-03-03 17:14:15,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:15,676 INFO L470 AbstractCegarLoop]: Abstraction has 5375 states and 14143 transitions. [2022-03-03 17:14:15,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:15,676 INFO L276 IsEmpty]: Start isEmpty. Operand 5375 states and 14143 transitions. [2022-03-03 17:14:15,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:15,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:15,682 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] [2022-03-03 17:14:15,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable331 [2022-03-03 17:14:15,682 INFO L402 AbstractCegarLoop]: === Iteration 333 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:15,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:15,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1861660533, now seen corresponding path program 282 times [2022-03-03 17:14:15,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:15,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795247354] [2022-03-03 17:14:15,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:15,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:15,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:15,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:15,934 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:15,934 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795247354] [2022-03-03 17:14:15,934 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795247354] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:15,934 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:15,934 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:15,934 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861008358] [2022-03-03 17:14:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:15,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:15,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:15,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:15,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:15,934 INFO L87 Difference]: Start difference. First operand 5375 states and 14143 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:17,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:17,616 INFO L93 Difference]: Finished difference Result 10574 states and 27737 transitions. [2022-03-03 17:14:17,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:14:17,617 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:17,628 INFO L225 Difference]: With dead ends: 10574 [2022-03-03 17:14:17,628 INFO L226 Difference]: Without dead ends: 10283 [2022-03-03 17:14:17,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=963, Invalid=3069, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:14:17,628 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1137 mSDsluCounter, 6106 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 6387 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:17,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 6387 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:14:17,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10283 states. [2022-03-03 17:14:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10283 to 5451. [2022-03-03 17:14:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6326605504587155) internal successors, (14348), 5450 states have internal predecessors, (14348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14348 transitions. [2022-03-03 17:14:17,701 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14348 transitions. Word has length 135 [2022-03-03 17:14:17,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:17,701 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14348 transitions. [2022-03-03 17:14:17,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:17,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14348 transitions. [2022-03-03 17:14:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:17,706 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:17,706 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:17,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable332 [2022-03-03 17:14:17,706 INFO L402 AbstractCegarLoop]: === Iteration 334 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:17,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2141600735, now seen corresponding path program 283 times [2022-03-03 17:14:17,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:17,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204010261] [2022-03-03 17:14:17,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:17,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:17,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:17,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:17,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204010261] [2022-03-03 17:14:17,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204010261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:17,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:17,981 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:17,981 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154284898] [2022-03-03 17:14:17,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:17,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:17,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:17,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:17,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:17,982 INFO L87 Difference]: Start difference. First operand 5451 states and 14348 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:19,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:19,505 INFO L93 Difference]: Finished difference Result 10588 states and 27767 transitions. [2022-03-03 17:14:19,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:14:19,505 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:19,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:19,521 INFO L225 Difference]: With dead ends: 10588 [2022-03-03 17:14:19,521 INFO L226 Difference]: Without dead ends: 10322 [2022-03-03 17:14:19,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=791, Invalid=2749, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:14:19,522 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1079 mSDsluCounter, 6889 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 7153 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:19,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 7153 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:14:19,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10322 states. [2022-03-03 17:14:19,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10322 to 5455. [2022-03-03 17:14:19,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.632013201320132) internal successors, (14355), 5454 states have internal predecessors, (14355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:19,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14355 transitions. [2022-03-03 17:14:19,626 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14355 transitions. Word has length 135 [2022-03-03 17:14:19,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:19,626 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14355 transitions. [2022-03-03 17:14:19,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:19,626 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14355 transitions. [2022-03-03 17:14:19,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:19,632 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:19,632 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:19,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable333 [2022-03-03 17:14:19,632 INFO L402 AbstractCegarLoop]: === Iteration 335 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:19,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:19,633 INFO L85 PathProgramCache]: Analyzing trace with hash -27247737, now seen corresponding path program 284 times [2022-03-03 17:14:19,633 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:19,633 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621514926] [2022-03-03 17:14:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:19,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:19,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:19,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:19,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621514926] [2022-03-03 17:14:19,898 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621514926] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:19,898 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:19,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:19,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110340580] [2022-03-03 17:14:19,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:19,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:19,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:19,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:19,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:19,899 INFO L87 Difference]: Start difference. First operand 5455 states and 14355 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:21,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:21,546 INFO L93 Difference]: Finished difference Result 10550 states and 27667 transitions. [2022-03-03 17:14:21,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:14:21,546 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:21,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:21,557 INFO L225 Difference]: With dead ends: 10550 [2022-03-03 17:14:21,557 INFO L226 Difference]: Without dead ends: 10279 [2022-03-03 17:14:21,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=845, Invalid=2815, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:14:21,558 INFO L933 BasicCegarLoop]: 387 mSDtfsCounter, 1088 mSDsluCounter, 6789 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 7064 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:21,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1088 Valid, 7064 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:14:21,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2022-03-03 17:14:21,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 5447. [2022-03-03 17:14:21,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6325743665075283) internal successors, (14337), 5446 states have internal predecessors, (14337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:21,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14337 transitions. [2022-03-03 17:14:21,648 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14337 transitions. Word has length 135 [2022-03-03 17:14:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:21,648 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14337 transitions. [2022-03-03 17:14:21,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:21,648 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14337 transitions. [2022-03-03 17:14:21,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:21,654 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:21,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:21,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable334 [2022-03-03 17:14:21,654 INFO L402 AbstractCegarLoop]: === Iteration 336 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:21,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:21,654 INFO L85 PathProgramCache]: Analyzing trace with hash 345532429, now seen corresponding path program 285 times [2022-03-03 17:14:21,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:21,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056011402] [2022-03-03 17:14:21,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:21,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:21,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:21,895 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:21,895 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056011402] [2022-03-03 17:14:21,895 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056011402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:21,895 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:21,895 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:21,895 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317835545] [2022-03-03 17:14:21,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:21,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:21,896 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:21,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:21,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:21,896 INFO L87 Difference]: Start difference. First operand 5447 states and 14337 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:23,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:23,633 INFO L93 Difference]: Finished difference Result 10720 states and 28105 transitions. [2022-03-03 17:14:23,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:14:23,633 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:23,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:23,648 INFO L225 Difference]: With dead ends: 10720 [2022-03-03 17:14:23,648 INFO L226 Difference]: Without dead ends: 10423 [2022-03-03 17:14:23,648 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=962, Invalid=3328, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:14:23,649 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1154 mSDsluCounter, 7390 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 7636 SdHoareTripleChecker+Invalid, 1456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:23,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 7636 Invalid, 1456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:14:23,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10423 states. [2022-03-03 17:14:23,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10423 to 5451. [2022-03-03 17:14:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6319266055045873) internal successors, (14344), 5450 states have internal predecessors, (14344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:23,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14344 transitions. [2022-03-03 17:14:23,741 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14344 transitions. Word has length 135 [2022-03-03 17:14:23,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:23,741 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14344 transitions. [2022-03-03 17:14:23,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:23,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14344 transitions. [2022-03-03 17:14:23,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:23,746 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:23,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:23,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable335 [2022-03-03 17:14:23,746 INFO L402 AbstractCegarLoop]: === Iteration 337 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:23,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:23,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2071045351, now seen corresponding path program 286 times [2022-03-03 17:14:23,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:23,746 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194263542] [2022-03-03 17:14:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:23,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:24,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:24,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:24,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194263542] [2022-03-03 17:14:24,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194263542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:24,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:24,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:24,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670858377] [2022-03-03 17:14:24,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:24,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:24,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:24,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:24,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:24,017 INFO L87 Difference]: Start difference. First operand 5451 states and 14344 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:25,625 INFO L93 Difference]: Finished difference Result 10604 states and 27807 transitions. [2022-03-03 17:14:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:14:25,625 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:25,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:25,637 INFO L225 Difference]: With dead ends: 10604 [2022-03-03 17:14:25,637 INFO L226 Difference]: Without dead ends: 10338 [2022-03-03 17:14:25,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=812, Invalid=2848, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:14:25,637 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 1111 mSDsluCounter, 6889 mSDsCounter, 0 mSdLazyCounter, 1381 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 7154 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:25,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 7154 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1381 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:14:25,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10338 states. [2022-03-03 17:14:25,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10338 to 5455. [2022-03-03 17:14:25,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6312797946461313) internal successors, (14351), 5454 states have internal predecessors, (14351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:25,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14351 transitions. [2022-03-03 17:14:25,730 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14351 transitions. Word has length 135 [2022-03-03 17:14:25,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:25,730 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14351 transitions. [2022-03-03 17:14:25,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:25,730 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14351 transitions. [2022-03-03 17:14:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:25,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:25,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:25,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable336 [2022-03-03 17:14:25,736 INFO L402 AbstractCegarLoop]: === Iteration 338 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash 55073473, now seen corresponding path program 287 times [2022-03-03 17:14:25,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:25,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746012063] [2022-03-03 17:14:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:25,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:26,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:26,007 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:26,008 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746012063] [2022-03-03 17:14:26,008 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746012063] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:26,008 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:26,008 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:26,008 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182022493] [2022-03-03 17:14:26,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:26,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:26,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:26,008 INFO L87 Difference]: Start difference. First operand 5455 states and 14351 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:27,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:27,523 INFO L93 Difference]: Finished difference Result 10550 states and 27663 transitions. [2022-03-03 17:14:27,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:14:27,523 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:27,538 INFO L225 Difference]: With dead ends: 10550 [2022-03-03 17:14:27,538 INFO L226 Difference]: Without dead ends: 10275 [2022-03-03 17:14:27,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=817, Invalid=2723, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:14:27,539 INFO L933 BasicCegarLoop]: 384 mSDtfsCounter, 1062 mSDsluCounter, 6815 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 7083 SdHoareTripleChecker+Invalid, 1338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:27,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1062 Valid, 7083 Invalid, 1338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:14:27,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10275 states. [2022-03-03 17:14:27,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10275 to 5443. [2022-03-03 17:14:27,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5443 states, 5442 states have (on average 2.6324880558618156) internal successors, (14326), 5442 states have internal predecessors, (14326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:27,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5443 states to 5443 states and 14326 transitions. [2022-03-03 17:14:27,635 INFO L78 Accepts]: Start accepts. Automaton has 5443 states and 14326 transitions. Word has length 135 [2022-03-03 17:14:27,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:27,635 INFO L470 AbstractCegarLoop]: Abstraction has 5443 states and 14326 transitions. [2022-03-03 17:14:27,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:27,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5443 states and 14326 transitions. [2022-03-03 17:14:27,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:27,641 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:27,641 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:27,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable337 [2022-03-03 17:14:27,642 INFO L402 AbstractCegarLoop]: === Iteration 339 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:27,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:27,642 INFO L85 PathProgramCache]: Analyzing trace with hash -564232579, now seen corresponding path program 288 times [2022-03-03 17:14:27,642 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:27,642 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694511793] [2022-03-03 17:14:27,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:27,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:27,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:27,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:27,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694511793] [2022-03-03 17:14:27,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694511793] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:28,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:28,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:28,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734420975] [2022-03-03 17:14:28,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:28,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:28,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:28,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:28,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:28,000 INFO L87 Difference]: Start difference. First operand 5443 states and 14326 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:30,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:30,692 INFO L93 Difference]: Finished difference Result 10887 states and 28533 transitions. [2022-03-03 17:14:30,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:14:30,692 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:30,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:30,706 INFO L225 Difference]: With dead ends: 10887 [2022-03-03 17:14:30,706 INFO L226 Difference]: Without dead ends: 10497 [2022-03-03 17:14:30,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1163, Invalid=3949, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:14:30,707 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 1228 mSDsluCounter, 7516 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 7755 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:30,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 7755 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:14:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10497 states. [2022-03-03 17:14:30,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10497 to 5455. [2022-03-03 17:14:30,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6305463879721307) internal successors, (14347), 5454 states have internal predecessors, (14347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:30,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14347 transitions. [2022-03-03 17:14:30,800 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14347 transitions. Word has length 135 [2022-03-03 17:14:30,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:30,800 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14347 transitions. [2022-03-03 17:14:30,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:30,800 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14347 transitions. [2022-03-03 17:14:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:30,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:30,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:30,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable338 [2022-03-03 17:14:30,806 INFO L402 AbstractCegarLoop]: === Iteration 340 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:30,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash -957697615, now seen corresponding path program 289 times [2022-03-03 17:14:30,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:30,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263798493] [2022-03-03 17:14:30,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:30,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:31,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:31,206 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:31,207 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263798493] [2022-03-03 17:14:31,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263798493] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:31,207 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:31,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:31,207 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810707124] [2022-03-03 17:14:31,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:31,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:31,207 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:31,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:31,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:31,207 INFO L87 Difference]: Start difference. First operand 5455 states and 14347 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:33,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:33,530 INFO L93 Difference]: Finished difference Result 10736 states and 28137 transitions. [2022-03-03 17:14:33,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:14:33,530 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:33,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:33,544 INFO L225 Difference]: With dead ends: 10736 [2022-03-03 17:14:33,544 INFO L226 Difference]: Without dead ends: 10439 [2022-03-03 17:14:33,545 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=986, Invalid=3436, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:14:33,546 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 1157 mSDsluCounter, 7033 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 7288 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:33,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 7288 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:14:33,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10439 states. [2022-03-03 17:14:33,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10439 to 5459. [2022-03-03 17:14:33,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5458 states have (on average 2.629901062660315) internal successors, (14354), 5458 states have internal predecessors, (14354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:33,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 14354 transitions. [2022-03-03 17:14:33,643 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 14354 transitions. Word has length 135 [2022-03-03 17:14:33,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:33,644 INFO L470 AbstractCegarLoop]: Abstraction has 5459 states and 14354 transitions. [2022-03-03 17:14:33,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:33,644 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 14354 transitions. [2022-03-03 17:14:33,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:33,649 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:33,649 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:33,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable339 [2022-03-03 17:14:33,649 INFO L402 AbstractCegarLoop]: === Iteration 341 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:33,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:33,650 INFO L85 PathProgramCache]: Analyzing trace with hash 920691901, now seen corresponding path program 290 times [2022-03-03 17:14:33,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:33,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357101492] [2022-03-03 17:14:33,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:33,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:33,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:33,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:33,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357101492] [2022-03-03 17:14:33,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357101492] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:33,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:33,991 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:33,991 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680345818] [2022-03-03 17:14:33,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:33,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:33,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:33,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:33,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:33,991 INFO L87 Difference]: Start difference. First operand 5459 states and 14354 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:35,901 INFO L93 Difference]: Finished difference Result 10620 states and 27839 transitions. [2022-03-03 17:14:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:14:35,901 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:35,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:35,915 INFO L225 Difference]: With dead ends: 10620 [2022-03-03 17:14:35,915 INFO L226 Difference]: Without dead ends: 10354 [2022-03-03 17:14:35,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=810, Invalid=2850, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:14:35,916 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 1080 mSDsluCounter, 6543 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 6810 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:35,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 6810 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:14:35,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10354 states. [2022-03-03 17:14:35,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10354 to 5463. [2022-03-03 17:14:35,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5463 states, 5462 states have (on average 2.6292566825338706) internal successors, (14361), 5462 states have internal predecessors, (14361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:35,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 14361 transitions. [2022-03-03 17:14:35,996 INFO L78 Accepts]: Start accepts. Automaton has 5463 states and 14361 transitions. Word has length 135 [2022-03-03 17:14:35,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:35,996 INFO L470 AbstractCegarLoop]: Abstraction has 5463 states and 14361 transitions. [2022-03-03 17:14:35,997 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:35,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5463 states and 14361 transitions. [2022-03-03 17:14:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:36,002 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:36,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:36,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable340 [2022-03-03 17:14:36,002 INFO L402 AbstractCegarLoop]: === Iteration 342 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:36,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:36,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1248156571, now seen corresponding path program 291 times [2022-03-03 17:14:36,003 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:36,003 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459569923] [2022-03-03 17:14:36,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:36,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:36,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:36,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459569923] [2022-03-03 17:14:36,390 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459569923] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:36,390 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:36,390 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:36,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483934340] [2022-03-03 17:14:36,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:36,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:36,390 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:36,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:36,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:36,391 INFO L87 Difference]: Start difference. First operand 5463 states and 14361 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:38,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:38,331 INFO L93 Difference]: Finished difference Result 10558 states and 27673 transitions. [2022-03-03 17:14:38,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:14:38,332 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:38,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:38,345 INFO L225 Difference]: With dead ends: 10558 [2022-03-03 17:14:38,345 INFO L226 Difference]: Without dead ends: 10263 [2022-03-03 17:14:38,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=787, Invalid=2635, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:14:38,345 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1061 mSDsluCounter, 7136 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 7399 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:38,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 7399 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:14:38,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10263 states. [2022-03-03 17:14:38,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10263 to 5431. [2022-03-03 17:14:38,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5431 states, 5430 states have (on average 2.632228360957643) internal successors, (14293), 5430 states have internal predecessors, (14293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:38,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5431 states to 5431 states and 14293 transitions. [2022-03-03 17:14:38,439 INFO L78 Accepts]: Start accepts. Automaton has 5431 states and 14293 transitions. Word has length 135 [2022-03-03 17:14:38,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:38,439 INFO L470 AbstractCegarLoop]: Abstraction has 5431 states and 14293 transitions. [2022-03-03 17:14:38,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:38,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5431 states and 14293 transitions. [2022-03-03 17:14:38,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:38,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:38,444 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:38,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable341 [2022-03-03 17:14:38,444 INFO L402 AbstractCegarLoop]: === Iteration 343 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:38,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:38,445 INFO L85 PathProgramCache]: Analyzing trace with hash 235447851, now seen corresponding path program 292 times [2022-03-03 17:14:38,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:38,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918243994] [2022-03-03 17:14:38,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:38,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:38,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:38,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:38,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:38,804 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918243994] [2022-03-03 17:14:38,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918243994] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:38,804 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:38,804 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:38,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271531603] [2022-03-03 17:14:38,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:38,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:38,805 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:38,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:38,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:38,805 INFO L87 Difference]: Start difference. First operand 5431 states and 14293 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:41,667 INFO L93 Difference]: Finished difference Result 11129 states and 29083 transitions. [2022-03-03 17:14:41,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:14:41,667 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:41,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:41,683 INFO L225 Difference]: With dead ends: 11129 [2022-03-03 17:14:41,683 INFO L226 Difference]: Without dead ends: 10708 [2022-03-03 17:14:41,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 896 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1344, Invalid=4356, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:14:41,684 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1467 mSDsluCounter, 7661 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 7895 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:41,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1467 Valid, 7895 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:14:41,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10708 states. [2022-03-03 17:14:41,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 5435. [2022-03-03 17:14:41,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5435 states, 5434 states have (on average 2.6315789473684212) internal successors, (14300), 5434 states have internal predecessors, (14300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5435 states to 5435 states and 14300 transitions. [2022-03-03 17:14:41,768 INFO L78 Accepts]: Start accepts. Automaton has 5435 states and 14300 transitions. Word has length 135 [2022-03-03 17:14:41,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:41,768 INFO L470 AbstractCegarLoop]: Abstraction has 5435 states and 14300 transitions. [2022-03-03 17:14:41,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:41,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5435 states and 14300 transitions. [2022-03-03 17:14:41,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:41,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:41,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:41,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable342 [2022-03-03 17:14:41,773 INFO L402 AbstractCegarLoop]: === Iteration 344 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:41,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1332667989, now seen corresponding path program 293 times [2022-03-03 17:14:41,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:41,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586697273] [2022-03-03 17:14:41,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:41,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:42,163 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:42,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586697273] [2022-03-03 17:14:42,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586697273] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:42,163 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:42,163 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:42,163 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270712937] [2022-03-03 17:14:42,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:42,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:42,164 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:42,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:42,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:42,164 INFO L87 Difference]: Start difference. First operand 5435 states and 14300 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:45,070 INFO L93 Difference]: Finished difference Result 10903 states and 28565 transitions. [2022-03-03 17:14:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:14:45,071 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:45,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:45,083 INFO L225 Difference]: With dead ends: 10903 [2022-03-03 17:14:45,083 INFO L226 Difference]: Without dead ends: 10513 [2022-03-03 17:14:45,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1182, Invalid=4074, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:14:45,084 INFO L933 BasicCegarLoop]: 407 mSDtfsCounter, 1210 mSDsluCounter, 7560 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:45,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1210 Valid, 7801 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:14:45,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10513 states. [2022-03-03 17:14:45,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10513 to 5447. [2022-03-03 17:14:45,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5447 states, 5446 states have (on average 2.6296364304076385) internal successors, (14321), 5446 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:45,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5447 states to 5447 states and 14321 transitions. [2022-03-03 17:14:45,153 INFO L78 Accepts]: Start accepts. Automaton has 5447 states and 14321 transitions. Word has length 135 [2022-03-03 17:14:45,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:45,153 INFO L470 AbstractCegarLoop]: Abstraction has 5447 states and 14321 transitions. [2022-03-03 17:14:45,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:45,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5447 states and 14321 transitions. [2022-03-03 17:14:45,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:45,158 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:45,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:45,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable343 [2022-03-03 17:14:45,158 INFO L402 AbstractCegarLoop]: === Iteration 345 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:45,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:45,158 INFO L85 PathProgramCache]: Analyzing trace with hash 187571785, now seen corresponding path program 294 times [2022-03-03 17:14:45,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:45,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835166960] [2022-03-03 17:14:45,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:45,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:45,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:45,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835166960] [2022-03-03 17:14:45,524 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835166960] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:45,524 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:45,524 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:45,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805856942] [2022-03-03 17:14:45,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:45,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:45,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:45,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:45,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:45,525 INFO L87 Difference]: Start difference. First operand 5447 states and 14321 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:47,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:47,921 INFO L93 Difference]: Finished difference Result 10752 states and 28169 transitions. [2022-03-03 17:14:47,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:14:47,921 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:47,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:47,935 INFO L225 Difference]: With dead ends: 10752 [2022-03-03 17:14:47,935 INFO L226 Difference]: Without dead ends: 10455 [2022-03-03 17:14:47,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=978, Invalid=3444, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:14:47,936 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1150 mSDsluCounter, 6644 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:47,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1150 Valid, 6906 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:14:47,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10455 states. [2022-03-03 17:14:48,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10455 to 5451. [2022-03-03 17:14:48,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5451 states, 5450 states have (on average 2.6289908256880734) internal successors, (14328), 5450 states have internal predecessors, (14328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:48,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 14328 transitions. [2022-03-03 17:14:48,023 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 14328 transitions. Word has length 135 [2022-03-03 17:14:48,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:48,023 INFO L470 AbstractCegarLoop]: Abstraction has 5451 states and 14328 transitions. [2022-03-03 17:14:48,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:48,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 14328 transitions. [2022-03-03 17:14:48,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:48,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:48,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:48,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable344 [2022-03-03 17:14:48,028 INFO L402 AbstractCegarLoop]: === Iteration 346 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:48,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:48,029 INFO L85 PathProgramCache]: Analyzing trace with hash 2065961301, now seen corresponding path program 295 times [2022-03-03 17:14:48,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:48,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885634881] [2022-03-03 17:14:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:48,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:48,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:48,403 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:48,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885634881] [2022-03-03 17:14:48,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885634881] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:48,404 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:48,404 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:48,404 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902151870] [2022-03-03 17:14:48,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:48,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:48,425 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:48,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:48,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:48,425 INFO L87 Difference]: Start difference. First operand 5451 states and 14328 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:50,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:50,237 INFO L93 Difference]: Finished difference Result 10636 states and 27871 transitions. [2022-03-03 17:14:50,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:14:50,237 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:50,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:50,251 INFO L225 Difference]: With dead ends: 10636 [2022-03-03 17:14:50,252 INFO L226 Difference]: Without dead ends: 10370 [2022-03-03 17:14:50,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=805, Invalid=2855, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:14:50,252 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1079 mSDsluCounter, 6529 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 6796 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:50,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1079 Valid, 6796 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:14:50,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10370 states. [2022-03-03 17:14:50,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10370 to 5455. [2022-03-03 17:14:50,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5455 states, 5454 states have (on average 2.6283461679501285) internal successors, (14335), 5454 states have internal predecessors, (14335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:50,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5455 states to 5455 states and 14335 transitions. [2022-03-03 17:14:50,340 INFO L78 Accepts]: Start accepts. Automaton has 5455 states and 14335 transitions. Word has length 135 [2022-03-03 17:14:50,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:50,340 INFO L470 AbstractCegarLoop]: Abstraction has 5455 states and 14335 transitions. [2022-03-03 17:14:50,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:50,340 INFO L276 IsEmpty]: Start isEmpty. Operand 5455 states and 14335 transitions. [2022-03-03 17:14:50,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:50,345 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:50,345 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:50,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable345 [2022-03-03 17:14:50,346 INFO L402 AbstractCegarLoop]: === Iteration 347 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:50,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:50,346 INFO L85 PathProgramCache]: Analyzing trace with hash -102887171, now seen corresponding path program 296 times [2022-03-03 17:14:50,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:50,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726987451] [2022-03-03 17:14:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:50,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:50,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:50,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:50,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726987451] [2022-03-03 17:14:50,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726987451] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:50,721 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:50,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:50,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968604606] [2022-03-03 17:14:50,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:50,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:50,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:50,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:50,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:50,722 INFO L87 Difference]: Start difference. First operand 5455 states and 14335 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:52,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:52,467 INFO L93 Difference]: Finished difference Result 10550 states and 27647 transitions. [2022-03-03 17:14:52,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:14:52,468 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:52,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:52,481 INFO L225 Difference]: With dead ends: 10550 [2022-03-03 17:14:52,481 INFO L226 Difference]: Without dead ends: 10259 [2022-03-03 17:14:52,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=761, Invalid=2545, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:14:52,482 INFO L933 BasicCegarLoop]: 380 mSDtfsCounter, 1059 mSDsluCounter, 7132 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 7393 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:52,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1059 Valid, 7393 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:14:52,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10259 states. [2022-03-03 17:14:52,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10259 to 5427. [2022-03-03 17:14:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5427 states, 5426 states have (on average 2.6321415407298194) internal successors, (14282), 5426 states have internal predecessors, (14282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5427 states to 5427 states and 14282 transitions. [2022-03-03 17:14:52,556 INFO L78 Accepts]: Start accepts. Automaton has 5427 states and 14282 transitions. Word has length 135 [2022-03-03 17:14:52,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:52,556 INFO L470 AbstractCegarLoop]: Abstraction has 5427 states and 14282 transitions. [2022-03-03 17:14:52,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:52,556 INFO L276 IsEmpty]: Start isEmpty. Operand 5427 states and 14282 transitions. [2022-03-03 17:14:52,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:52,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:52,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:52,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable346 [2022-03-03 17:14:52,561 INFO L402 AbstractCegarLoop]: === Iteration 348 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:52,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:52,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1236203231, now seen corresponding path program 297 times [2022-03-03 17:14:52,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:52,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016791619] [2022-03-03 17:14:52,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:52,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:52,990 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:52,990 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016791619] [2022-03-03 17:14:52,990 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016791619] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:52,990 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:52,990 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:52,990 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862698132] [2022-03-03 17:14:52,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:52,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:52,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:52,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:52,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=593, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:52,991 INFO L87 Difference]: Start difference. First operand 5427 states and 14282 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:56,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:14:56,521 INFO L93 Difference]: Finished difference Result 11195 states and 29193 transitions. [2022-03-03 17:14:56,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 17:14:56,521 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:14:56,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:14:56,537 INFO L225 Difference]: With dead ends: 11195 [2022-03-03 17:14:56,537 INFO L226 Difference]: Without dead ends: 10371 [2022-03-03 17:14:56,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1497, Invalid=4665, Unknown=0, NotChecked=0, Total=6162 [2022-03-03 17:14:56,538 INFO L933 BasicCegarLoop]: 437 mSDtfsCounter, 1628 mSDsluCounter, 7549 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 7807 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:14:56,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1628 Valid, 7807 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:14:56,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states. [2022-03-03 17:14:56,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10371 to 5479. [2022-03-03 17:14:56,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5479 states, 5478 states have (on average 2.6237677984665937) internal successors, (14373), 5478 states have internal predecessors, (14373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5479 states to 5479 states and 14373 transitions. [2022-03-03 17:14:56,633 INFO L78 Accepts]: Start accepts. Automaton has 5479 states and 14373 transitions. Word has length 135 [2022-03-03 17:14:56,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:14:56,633 INFO L470 AbstractCegarLoop]: Abstraction has 5479 states and 14373 transitions. [2022-03-03 17:14:56,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:14:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5479 states and 14373 transitions. [2022-03-03 17:14:56,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:14:56,639 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:14:56,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:14:56,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable347 [2022-03-03 17:14:56,639 INFO L402 AbstractCegarLoop]: === Iteration 349 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:14:56,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:14:56,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1276714409, now seen corresponding path program 298 times [2022-03-03 17:14:56,639 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:14:56,639 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190118366] [2022-03-03 17:14:56,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:14:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:14:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:14:57,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:14:57,041 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:14:57,041 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190118366] [2022-03-03 17:14:57,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190118366] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:14:57,041 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:14:57,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:14:57,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338103927] [2022-03-03 17:14:57,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:14:57,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:14:57,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:14:57,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:14:57,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:14:57,042 INFO L87 Difference]: Start difference. First operand 5479 states and 14373 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:00,222 INFO L93 Difference]: Finished difference Result 10761 states and 28035 transitions. [2022-03-03 17:15:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:15:00,222 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:00,233 INFO L225 Difference]: With dead ends: 10761 [2022-03-03 17:15:00,233 INFO L226 Difference]: Without dead ends: 10340 [2022-03-03 17:15:00,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1328, Invalid=4372, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:15:00,234 INFO L933 BasicCegarLoop]: 423 mSDtfsCounter, 1493 mSDsluCounter, 7355 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 7610 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:00,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1493 Valid, 7610 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:15:00,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10340 states. [2022-03-03 17:15:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10340 to 5483. [2022-03-03 17:15:00,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5483 states, 5482 states have (on average 2.623130244436337) internal successors, (14380), 5482 states have internal predecessors, (14380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:00,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5483 states to 5483 states and 14380 transitions. [2022-03-03 17:15:00,305 INFO L78 Accepts]: Start accepts. Automaton has 5483 states and 14380 transitions. Word has length 135 [2022-03-03 17:15:00,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:00,305 INFO L470 AbstractCegarLoop]: Abstraction has 5483 states and 14380 transitions. [2022-03-03 17:15:00,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:00,306 INFO L276 IsEmpty]: Start isEmpty. Operand 5483 states and 14380 transitions. [2022-03-03 17:15:00,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:00,310 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:00,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:00,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable348 [2022-03-03 17:15:00,311 INFO L402 AbstractCegarLoop]: === Iteration 350 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:00,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:00,311 INFO L85 PathProgramCache]: Analyzing trace with hash -179494271, now seen corresponding path program 299 times [2022-03-03 17:15:00,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:00,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483102803] [2022-03-03 17:15:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:00,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:00,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:00,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:00,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483102803] [2022-03-03 17:15:00,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483102803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:00,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:00,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:00,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491105658] [2022-03-03 17:15:00,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:00,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:00,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:00,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:00,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:00,708 INFO L87 Difference]: Start difference. First operand 5483 states and 14380 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:03,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:03,659 INFO L93 Difference]: Finished difference Result 10559 states and 27575 transitions. [2022-03-03 17:15:03,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:15:03,659 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:03,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:03,674 INFO L225 Difference]: With dead ends: 10559 [2022-03-03 17:15:03,675 INFO L226 Difference]: Without dead ends: 10169 [2022-03-03 17:15:03,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1168, Invalid=4088, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:15:03,676 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1211 mSDsluCounter, 8045 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 8282 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:03,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1211 Valid, 8282 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-03 17:15:03,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10169 states. [2022-03-03 17:15:03,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10169 to 5495. [2022-03-03 17:15:03,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5495 states, 5494 states have (on average 2.6212231525300327) internal successors, (14401), 5494 states have internal predecessors, (14401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:03,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5495 states to 5495 states and 14401 transitions. [2022-03-03 17:15:03,768 INFO L78 Accepts]: Start accepts. Automaton has 5495 states and 14401 transitions. Word has length 135 [2022-03-03 17:15:03,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:03,769 INFO L470 AbstractCegarLoop]: Abstraction has 5495 states and 14401 transitions. [2022-03-03 17:15:03,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:03,769 INFO L276 IsEmpty]: Start isEmpty. Operand 5495 states and 14401 transitions. [2022-03-03 17:15:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:03,774 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:03,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:03,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable349 [2022-03-03 17:15:03,775 INFO L402 AbstractCegarLoop]: === Iteration 351 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:03,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:03,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1324590475, now seen corresponding path program 300 times [2022-03-03 17:15:03,775 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:03,775 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737369245] [2022-03-03 17:15:03,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:03,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:04,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:04,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737369245] [2022-03-03 17:15:04,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737369245] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:04,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:04,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:04,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551447390] [2022-03-03 17:15:04,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:04,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:04,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:04,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:04,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:04,177 INFO L87 Difference]: Start difference. First operand 5495 states and 14401 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:06,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:06,550 INFO L93 Difference]: Finished difference Result 10416 states and 27201 transitions. [2022-03-03 17:15:06,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:15:06,550 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:06,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:06,564 INFO L225 Difference]: With dead ends: 10416 [2022-03-03 17:15:06,565 INFO L226 Difference]: Without dead ends: 10119 [2022-03-03 17:15:06,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=968, Invalid=3454, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:15:06,565 INFO L933 BasicCegarLoop]: 403 mSDtfsCounter, 1154 mSDsluCounter, 6703 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1154 SdHoareTripleChecker+Valid, 6971 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:06,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1154 Valid, 6971 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:06,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10119 states. [2022-03-03 17:15:06,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10119 to 5499. [2022-03-03 17:15:06,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5499 states, 5498 states have (on average 2.6205893052018916) internal successors, (14408), 5498 states have internal predecessors, (14408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5499 states to 5499 states and 14408 transitions. [2022-03-03 17:15:06,658 INFO L78 Accepts]: Start accepts. Automaton has 5499 states and 14408 transitions. Word has length 135 [2022-03-03 17:15:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:06,658 INFO L470 AbstractCegarLoop]: Abstraction has 5499 states and 14408 transitions. [2022-03-03 17:15:06,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:06,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5499 states and 14408 transitions. [2022-03-03 17:15:06,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:06,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:06,664 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:06,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable350 [2022-03-03 17:15:06,664 INFO L402 AbstractCegarLoop]: === Iteration 352 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:06,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:06,664 INFO L85 PathProgramCache]: Analyzing trace with hash 553799041, now seen corresponding path program 301 times [2022-03-03 17:15:06,664 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:06,664 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465916728] [2022-03-03 17:15:06,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:06,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:06,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:07,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:07,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:07,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465916728] [2022-03-03 17:15:07,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465916728] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:07,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:07,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:07,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687380886] [2022-03-03 17:15:07,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:07,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:07,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:07,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:07,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:07,090 INFO L87 Difference]: Start difference. First operand 5499 states and 14408 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:09,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:09,216 INFO L93 Difference]: Finished difference Result 10316 states and 26947 transitions. [2022-03-03 17:15:09,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:15:09,216 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:09,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:09,230 INFO L225 Difference]: With dead ends: 10316 [2022-03-03 17:15:09,230 INFO L226 Difference]: Without dead ends: 10050 [2022-03-03 17:15:09,231 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=805, Invalid=2855, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:15:09,231 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 1092 mSDsluCounter, 6198 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 6479 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:09,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1092 Valid, 6479 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1220 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:09,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10050 states. [2022-03-03 17:15:09,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10050 to 5503. [2022-03-03 17:15:09,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5503 states, 5502 states have (on average 2.619956379498364) internal successors, (14415), 5502 states have internal predecessors, (14415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5503 states to 5503 states and 14415 transitions. [2022-03-03 17:15:09,325 INFO L78 Accepts]: Start accepts. Automaton has 5503 states and 14415 transitions. Word has length 135 [2022-03-03 17:15:09,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:09,325 INFO L470 AbstractCegarLoop]: Abstraction has 5503 states and 14415 transitions. [2022-03-03 17:15:09,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 5503 states and 14415 transitions. [2022-03-03 17:15:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:09,330 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:09,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:09,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable351 [2022-03-03 17:15:09,330 INFO L402 AbstractCegarLoop]: === Iteration 353 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:09,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:09,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1615049431, now seen corresponding path program 302 times [2022-03-03 17:15:09,331 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:09,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417801665] [2022-03-03 17:15:09,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:09,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:09,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:09,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:09,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417801665] [2022-03-03 17:15:09,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417801665] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:09,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:09,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:09,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9706623] [2022-03-03 17:15:09,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:09,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:09,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:09,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:09,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:09,743 INFO L87 Difference]: Start difference. First operand 5503 states and 14415 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:11,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:11,819 INFO L93 Difference]: Finished difference Result 10182 states and 26599 transitions. [2022-03-03 17:15:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:15:11,819 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:11,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:11,834 INFO L225 Difference]: With dead ends: 10182 [2022-03-03 17:15:11,834 INFO L226 Difference]: Without dead ends: 9635 [2022-03-03 17:15:11,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=759, Invalid=2547, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:15:11,834 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 1074 mSDsluCounter, 6811 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:11,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1074 Valid, 7085 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9635 states. [2022-03-03 17:15:11,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9635 to 5219. [2022-03-03 17:15:11,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5219 states, 5218 states have (on average 2.6282100421617476) internal successors, (13714), 5218 states have internal predecessors, (13714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:11,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 5219 states and 13714 transitions. [2022-03-03 17:15:11,929 INFO L78 Accepts]: Start accepts. Automaton has 5219 states and 13714 transitions. Word has length 135 [2022-03-03 17:15:11,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:11,930 INFO L470 AbstractCegarLoop]: Abstraction has 5219 states and 13714 transitions. [2022-03-03 17:15:11,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:11,930 INFO L276 IsEmpty]: Start isEmpty. Operand 5219 states and 13714 transitions. [2022-03-03 17:15:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:11,936 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:11,936 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:11,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable352 [2022-03-03 17:15:11,936 INFO L402 AbstractCegarLoop]: === Iteration 354 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:11,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:11,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1576054521, now seen corresponding path program 303 times [2022-03-03 17:15:11,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:11,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121517786] [2022-03-03 17:15:11,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:11,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:12,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:12,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:12,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121517786] [2022-03-03 17:15:12,323 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121517786] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:12,323 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:12,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:12,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911860215] [2022-03-03 17:15:12,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:12,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:12,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:12,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:12,323 INFO L87 Difference]: Start difference. First operand 5219 states and 13714 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:14,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:14,866 INFO L93 Difference]: Finished difference Result 9898 states and 25898 transitions. [2022-03-03 17:15:14,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-03 17:15:14,866 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:14,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:14,881 INFO L225 Difference]: With dead ends: 9898 [2022-03-03 17:15:14,881 INFO L226 Difference]: Without dead ends: 9607 [2022-03-03 17:15:14,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=959, Invalid=3073, Unknown=0, NotChecked=0, Total=4032 [2022-03-03 17:15:14,882 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 1151 mSDsluCounter, 6628 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 6886 SdHoareTripleChecker+Invalid, 1303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:14,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 6886 Invalid, 1303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:14,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9607 states. [2022-03-03 17:15:14,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9607 to 5299. [2022-03-03 17:15:14,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.629294073235183) internal successors, (13930), 5298 states have internal predecessors, (13930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:14,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13930 transitions. [2022-03-03 17:15:14,993 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13930 transitions. Word has length 135 [2022-03-03 17:15:14,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:14,993 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13930 transitions. [2022-03-03 17:15:14,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:14,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13930 transitions. [2022-03-03 17:15:14,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:14,999 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:14,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:14,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable353 [2022-03-03 17:15:14,999 INFO L402 AbstractCegarLoop]: === Iteration 355 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:15,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:15,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1284348493, now seen corresponding path program 304 times [2022-03-03 17:15:15,000 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:15,000 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859877237] [2022-03-03 17:15:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:15,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:15,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:15,363 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:15,363 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859877237] [2022-03-03 17:15:15,363 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859877237] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:15,363 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:15,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:15,363 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909303233] [2022-03-03 17:15:15,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:15,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:15,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:15,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:15,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:15,364 INFO L87 Difference]: Start difference. First operand 5299 states and 13930 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:17,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:17,364 INFO L93 Difference]: Finished difference Result 9912 states and 25928 transitions. [2022-03-03 17:15:17,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:15:17,365 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:17,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:17,378 INFO L225 Difference]: With dead ends: 9912 [2022-03-03 17:15:17,378 INFO L226 Difference]: Without dead ends: 9646 [2022-03-03 17:15:17,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=777, Invalid=2763, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:15:17,379 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1130 mSDsluCounter, 6657 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 6899 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:17,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 6899 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:17,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9646 states. [2022-03-03 17:15:17,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9646 to 5303. [2022-03-03 17:15:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.628630705394191) internal successors, (13937), 5302 states have internal predecessors, (13937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:17,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13937 transitions. [2022-03-03 17:15:17,477 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13937 transitions. Word has length 135 [2022-03-03 17:15:17,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:17,477 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13937 transitions. [2022-03-03 17:15:17,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:17,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13937 transitions. [2022-03-03 17:15:17,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:17,483 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:17,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:17,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable354 [2022-03-03 17:15:17,483 INFO L402 AbstractCegarLoop]: === Iteration 356 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:17,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:17,484 INFO L85 PathProgramCache]: Analyzing trace with hash -884499979, now seen corresponding path program 305 times [2022-03-03 17:15:17,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:17,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106464868] [2022-03-03 17:15:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:17,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:17,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:17,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106464868] [2022-03-03 17:15:17,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106464868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:17,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:17,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:17,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203694841] [2022-03-03 17:15:17,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:17,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:17,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:17,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:17,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:17,731 INFO L87 Difference]: Start difference. First operand 5303 states and 13937 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:19,341 INFO L93 Difference]: Finished difference Result 9874 states and 25828 transitions. [2022-03-03 17:15:19,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:15:19,341 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:19,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:19,354 INFO L225 Difference]: With dead ends: 9874 [2022-03-03 17:15:19,354 INFO L226 Difference]: Without dead ends: 9603 [2022-03-03 17:15:19,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=843, Invalid=2817, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:15:19,355 INFO L933 BasicCegarLoop]: 367 mSDtfsCounter, 1129 mSDsluCounter, 6902 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 7150 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:19,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1129 Valid, 7150 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:15:19,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9603 states. [2022-03-03 17:15:19,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9603 to 5295. [2022-03-03 17:15:19,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.629202871174915) internal successors, (13919), 5294 states have internal predecessors, (13919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:19,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13919 transitions. [2022-03-03 17:15:19,457 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13919 transitions. Word has length 135 [2022-03-03 17:15:19,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:19,457 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13919 transitions. [2022-03-03 17:15:19,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:19,457 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13919 transitions. [2022-03-03 17:15:19,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:19,463 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:19,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:19,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable355 [2022-03-03 17:15:19,463 INFO L402 AbstractCegarLoop]: === Iteration 357 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:19,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:19,463 INFO L85 PathProgramCache]: Analyzing trace with hash -511719813, now seen corresponding path program 306 times [2022-03-03 17:15:19,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:19,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645809780] [2022-03-03 17:15:19,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:19,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:19,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:19,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645809780] [2022-03-03 17:15:19,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645809780] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:19,733 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:19,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:19,733 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308727489] [2022-03-03 17:15:19,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:19,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:19,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:19,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:19,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:19,734 INFO L87 Difference]: Start difference. First operand 5295 states and 13919 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:21,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:21,904 INFO L93 Difference]: Finished difference Result 10044 states and 26266 transitions. [2022-03-03 17:15:21,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-03 17:15:21,904 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:21,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:21,916 INFO L225 Difference]: With dead ends: 10044 [2022-03-03 17:15:21,917 INFO L226 Difference]: Without dead ends: 9747 [2022-03-03 17:15:21,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=952, Invalid=3338, Unknown=0, NotChecked=0, Total=4290 [2022-03-03 17:15:21,917 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 1228 mSDsluCounter, 6732 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 6966 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:21,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1228 Valid, 6966 Invalid, 1330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:15:21,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9747 states. [2022-03-03 17:15:21,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9747 to 5299. [2022-03-03 17:15:21,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6285390713476784) internal successors, (13926), 5298 states have internal predecessors, (13926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:21,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13926 transitions. [2022-03-03 17:15:21,989 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13926 transitions. Word has length 135 [2022-03-03 17:15:21,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:21,989 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13926 transitions. [2022-03-03 17:15:21,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:21,990 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13926 transitions. [2022-03-03 17:15:21,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:21,994 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:21,994 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:21,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable356 [2022-03-03 17:15:21,994 INFO L402 AbstractCegarLoop]: === Iteration 358 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:21,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:21,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1366669703, now seen corresponding path program 307 times [2022-03-03 17:15:21,995 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:21,995 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159003968] [2022-03-03 17:15:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:21,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:22,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:22,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:22,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159003968] [2022-03-03 17:15:22,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159003968] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:22,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:22,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:22,389 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474363647] [2022-03-03 17:15:22,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:22,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:22,389 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:22,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:22,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:22,390 INFO L87 Difference]: Start difference. First operand 5299 states and 13926 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:24,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:24,200 INFO L93 Difference]: Finished difference Result 9928 states and 25968 transitions. [2022-03-03 17:15:24,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:15:24,201 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:24,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:24,211 INFO L225 Difference]: With dead ends: 9928 [2022-03-03 17:15:24,212 INFO L226 Difference]: Without dead ends: 9662 [2022-03-03 17:15:24,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=807, Invalid=2853, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:15:24,212 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 1147 mSDsluCounter, 6999 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 7235 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:24,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1147 Valid, 7235 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:24,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9662 states. [2022-03-03 17:15:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9662 to 5303. [2022-03-03 17:15:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.627876273104489) internal successors, (13933), 5302 states have internal predecessors, (13933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13933 transitions. [2022-03-03 17:15:24,277 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13933 transitions. Word has length 135 [2022-03-03 17:15:24,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:24,277 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13933 transitions. [2022-03-03 17:15:24,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:24,278 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13933 transitions. [2022-03-03 17:15:24,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:24,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:24,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:24,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable357 [2022-03-03 17:15:24,282 INFO L402 AbstractCegarLoop]: === Iteration 359 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:24,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:24,283 INFO L85 PathProgramCache]: Analyzing trace with hash -802178769, now seen corresponding path program 308 times [2022-03-03 17:15:24,283 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:24,283 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017687563] [2022-03-03 17:15:24,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:24,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:24,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:24,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:24,631 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017687563] [2022-03-03 17:15:24,631 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017687563] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:24,631 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:24,631 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:24,631 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404333466] [2022-03-03 17:15:24,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:24,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:24,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:24,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:24,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:24,631 INFO L87 Difference]: Start difference. First operand 5303 states and 13933 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:26,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:26,441 INFO L93 Difference]: Finished difference Result 9874 states and 25824 transitions. [2022-03-03 17:15:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-03 17:15:26,441 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:26,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:26,455 INFO L225 Difference]: With dead ends: 9874 [2022-03-03 17:15:26,456 INFO L226 Difference]: Without dead ends: 9599 [2022-03-03 17:15:26,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=813, Invalid=2727, Unknown=0, NotChecked=0, Total=3540 [2022-03-03 17:15:26,456 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1136 mSDsluCounter, 6867 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 7111 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:26,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1136 Valid, 7111 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:15:26,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9599 states. [2022-03-03 17:15:26,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9599 to 5291. [2022-03-03 17:15:26,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5291 states, 5290 states have (on average 2.6291115311909263) internal successors, (13908), 5290 states have internal predecessors, (13908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:26,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5291 states to 5291 states and 13908 transitions. [2022-03-03 17:15:26,555 INFO L78 Accepts]: Start accepts. Automaton has 5291 states and 13908 transitions. Word has length 135 [2022-03-03 17:15:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:26,555 INFO L470 AbstractCegarLoop]: Abstraction has 5291 states and 13908 transitions. [2022-03-03 17:15:26,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 5291 states and 13908 transitions. [2022-03-03 17:15:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:26,561 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:26,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:26,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable358 [2022-03-03 17:15:26,561 INFO L402 AbstractCegarLoop]: === Iteration 360 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:26,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:26,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1421484821, now seen corresponding path program 309 times [2022-03-03 17:15:26,562 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:26,562 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452224868] [2022-03-03 17:15:26,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:26,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:26,832 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:26,832 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452224868] [2022-03-03 17:15:26,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452224868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:26,832 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:26,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:26,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195861916] [2022-03-03 17:15:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:26,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:26,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:26,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:26,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:26,835 INFO L87 Difference]: Start difference. First operand 5291 states and 13908 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:28,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:28,808 INFO L93 Difference]: Finished difference Result 10211 states and 26694 transitions. [2022-03-03 17:15:28,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-03 17:15:28,808 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:28,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:28,818 INFO L225 Difference]: With dead ends: 10211 [2022-03-03 17:15:28,819 INFO L226 Difference]: Without dead ends: 9821 [2022-03-03 17:15:28,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1150, Invalid=3962, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 17:15:28,819 INFO L933 BasicCegarLoop]: 383 mSDtfsCounter, 1321 mSDsluCounter, 6854 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 7079 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:28,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1321 Valid, 7079 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:15:28,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9821 states. [2022-03-03 17:15:28,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9821 to 5303. [2022-03-03 17:15:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.627121840814787) internal successors, (13929), 5302 states have internal predecessors, (13929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:28,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13929 transitions. [2022-03-03 17:15:28,887 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13929 transitions. Word has length 135 [2022-03-03 17:15:28,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:28,887 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13929 transitions. [2022-03-03 17:15:28,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:28,887 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13929 transitions. [2022-03-03 17:15:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:28,892 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:28,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:28,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable359 [2022-03-03 17:15:28,892 INFO L402 AbstractCegarLoop]: === Iteration 361 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:28,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:28,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1814949857, now seen corresponding path program 310 times [2022-03-03 17:15:28,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:28,892 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751673009] [2022-03-03 17:15:28,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:28,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:29,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:29,181 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:29,181 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751673009] [2022-03-03 17:15:29,181 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751673009] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:29,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:29,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:29,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359259917] [2022-03-03 17:15:29,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:29,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:29,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:29,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:29,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:29,182 INFO L87 Difference]: Start difference. First operand 5303 states and 13929 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:31,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:31,601 INFO L93 Difference]: Finished difference Result 10060 states and 26298 transitions. [2022-03-03 17:15:31,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:15:31,601 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:31,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:31,615 INFO L225 Difference]: With dead ends: 10060 [2022-03-03 17:15:31,616 INFO L226 Difference]: Without dead ends: 9763 [2022-03-03 17:15:31,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=976, Invalid=3446, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:15:31,616 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1246 mSDsluCounter, 6741 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 6976 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:31,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1246 Valid, 6976 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:31,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9763 states. [2022-03-03 17:15:31,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9763 to 5307. [2022-03-03 17:15:31,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5307 states, 5306 states have (on average 2.626460610629476) internal successors, (13936), 5306 states have internal predecessors, (13936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:31,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5307 states to 5307 states and 13936 transitions. [2022-03-03 17:15:31,706 INFO L78 Accepts]: Start accepts. Automaton has 5307 states and 13936 transitions. Word has length 135 [2022-03-03 17:15:31,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:31,706 INFO L470 AbstractCegarLoop]: Abstraction has 5307 states and 13936 transitions. [2022-03-03 17:15:31,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:31,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5307 states and 13936 transitions. [2022-03-03 17:15:31,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:31,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:31,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:31,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable360 [2022-03-03 17:15:31,712 INFO L402 AbstractCegarLoop]: === Iteration 362 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:31,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:31,713 INFO L85 PathProgramCache]: Analyzing trace with hash 63439659, now seen corresponding path program 311 times [2022-03-03 17:15:31,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:31,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846175186] [2022-03-03 17:15:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:31,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:32,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:32,111 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:32,111 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846175186] [2022-03-03 17:15:32,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846175186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:32,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:32,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:32,111 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649558255] [2022-03-03 17:15:32,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:32,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:32,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:32,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:32,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:32,111 INFO L87 Difference]: Start difference. First operand 5307 states and 13936 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:34,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:34,022 INFO L93 Difference]: Finished difference Result 9944 states and 26000 transitions. [2022-03-03 17:15:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:15:34,022 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:34,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:34,033 INFO L225 Difference]: With dead ends: 9944 [2022-03-03 17:15:34,033 INFO L226 Difference]: Without dead ends: 9678 [2022-03-03 17:15:34,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=804, Invalid=2856, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:15:34,033 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 1176 mSDsluCounter, 5924 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 6177 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:34,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 6177 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:34,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9678 states. [2022-03-03 17:15:34,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9678 to 5311. [2022-03-03 17:15:34,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5311 states, 5310 states have (on average 2.625800376647834) internal successors, (13943), 5310 states have internal predecessors, (13943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:34,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5311 states to 5311 states and 13943 transitions. [2022-03-03 17:15:34,101 INFO L78 Accepts]: Start accepts. Automaton has 5311 states and 13943 transitions. Word has length 135 [2022-03-03 17:15:34,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:34,101 INFO L470 AbstractCegarLoop]: Abstraction has 5311 states and 13943 transitions. [2022-03-03 17:15:34,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:34,101 INFO L276 IsEmpty]: Start isEmpty. Operand 5311 states and 13943 transitions. [2022-03-03 17:15:34,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:34,106 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:34,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:34,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable361 [2022-03-03 17:15:34,106 INFO L402 AbstractCegarLoop]: === Iteration 363 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:34,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:34,107 INFO L85 PathProgramCache]: Analyzing trace with hash -2105408813, now seen corresponding path program 312 times [2022-03-03 17:15:34,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:34,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277085689] [2022-03-03 17:15:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:34,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:34,371 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:34,371 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277085689] [2022-03-03 17:15:34,371 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277085689] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:34,371 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:34,371 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:34,371 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136191306] [2022-03-03 17:15:34,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:34,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:34,371 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:34,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:34,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:34,372 INFO L87 Difference]: Start difference. First operand 5311 states and 13943 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:35,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:35,849 INFO L93 Difference]: Finished difference Result 9882 states and 25834 transitions. [2022-03-03 17:15:35,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-03 17:15:35,849 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:35,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:35,863 INFO L225 Difference]: With dead ends: 9882 [2022-03-03 17:15:35,864 INFO L226 Difference]: Without dead ends: 9587 [2022-03-03 17:15:35,864 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=785, Invalid=2637, Unknown=0, NotChecked=0, Total=3422 [2022-03-03 17:15:35,864 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 1144 mSDsluCounter, 6507 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 6753 SdHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:35,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 6753 Invalid, 1275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:15:35,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9587 states. [2022-03-03 17:15:35,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9587 to 5279. [2022-03-03 17:15:35,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5279 states, 5278 states have (on average 2.6288366805608185) internal successors, (13875), 5278 states have internal predecessors, (13875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:35,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5279 states to 5279 states and 13875 transitions. [2022-03-03 17:15:35,967 INFO L78 Accepts]: Start accepts. Automaton has 5279 states and 13875 transitions. Word has length 135 [2022-03-03 17:15:35,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:35,967 INFO L470 AbstractCegarLoop]: Abstraction has 5279 states and 13875 transitions. [2022-03-03 17:15:35,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:35,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5279 states and 13875 transitions. [2022-03-03 17:15:35,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:35,972 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:35,972 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:35,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable362 [2022-03-03 17:15:35,973 INFO L402 AbstractCegarLoop]: === Iteration 364 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:35,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:35,973 INFO L85 PathProgramCache]: Analyzing trace with hash -621804391, now seen corresponding path program 313 times [2022-03-03 17:15:35,973 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:35,973 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896735337] [2022-03-03 17:15:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:35,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:36,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:36,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896735337] [2022-03-03 17:15:36,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896735337] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:36,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:36,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:36,340 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225062522] [2022-03-03 17:15:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:36,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:36,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:36,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:36,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:36,341 INFO L87 Difference]: Start difference. First operand 5279 states and 13875 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:38,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:38,770 INFO L93 Difference]: Finished difference Result 10453 states and 27244 transitions. [2022-03-03 17:15:38,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-03 17:15:38,770 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:38,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:38,781 INFO L225 Difference]: With dead ends: 10453 [2022-03-03 17:15:38,781 INFO L226 Difference]: Without dead ends: 10032 [2022-03-03 17:15:38,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1328, Invalid=4372, Unknown=0, NotChecked=0, Total=5700 [2022-03-03 17:15:38,782 INFO L933 BasicCegarLoop]: 388 mSDtfsCounter, 1602 mSDsluCounter, 6929 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 7149 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:38,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 7149 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:15:38,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10032 states. [2022-03-03 17:15:38,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10032 to 5283. [2022-03-03 17:15:38,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 5282 states have (on average 2.6281711472926923) internal successors, (13882), 5282 states have internal predecessors, (13882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:38,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 13882 transitions. [2022-03-03 17:15:38,852 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 13882 transitions. Word has length 135 [2022-03-03 17:15:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:38,852 INFO L470 AbstractCegarLoop]: Abstraction has 5283 states and 13882 transitions. [2022-03-03 17:15:38,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 13882 transitions. [2022-03-03 17:15:38,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:38,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:38,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:38,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable363 [2022-03-03 17:15:38,857 INFO L402 AbstractCegarLoop]: === Iteration 365 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:38,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:38,857 INFO L85 PathProgramCache]: Analyzing trace with hash 475415747, now seen corresponding path program 314 times [2022-03-03 17:15:38,857 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:38,857 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243434454] [2022-03-03 17:15:38,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:38,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:39,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:39,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:39,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243434454] [2022-03-03 17:15:39,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243434454] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:39,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:39,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:39,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555703408] [2022-03-03 17:15:39,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:39,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:39,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:39,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:39,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:39,321 INFO L87 Difference]: Start difference. First operand 5283 states and 13882 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:41,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:41,777 INFO L93 Difference]: Finished difference Result 10227 states and 26726 transitions. [2022-03-03 17:15:41,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-03 17:15:41,777 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:41,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:41,790 INFO L225 Difference]: With dead ends: 10227 [2022-03-03 17:15:41,791 INFO L226 Difference]: Without dead ends: 9837 [2022-03-03 17:15:41,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 800 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1168, Invalid=4088, Unknown=0, NotChecked=0, Total=5256 [2022-03-03 17:15:41,791 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 1327 mSDsluCounter, 6884 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 7106 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:41,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1327 Valid, 7106 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:41,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9837 states. [2022-03-03 17:15:41,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9837 to 5295. [2022-03-03 17:15:41,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 5294 states have (on average 2.6261805817907065) internal successors, (13903), 5294 states have internal predecessors, (13903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:41,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 13903 transitions. [2022-03-03 17:15:41,888 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 13903 transitions. Word has length 135 [2022-03-03 17:15:41,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:41,888 INFO L470 AbstractCegarLoop]: Abstraction has 5295 states and 13903 transitions. [2022-03-03 17:15:41,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:41,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 13903 transitions. [2022-03-03 17:15:41,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:41,893 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:41,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:41,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable364 [2022-03-03 17:15:41,894 INFO L402 AbstractCegarLoop]: === Iteration 366 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:41,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:41,894 INFO L85 PathProgramCache]: Analyzing trace with hash -669680457, now seen corresponding path program 315 times [2022-03-03 17:15:41,894 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:41,894 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85492261] [2022-03-03 17:15:41,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:41,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:41,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:42,144 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:42,144 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85492261] [2022-03-03 17:15:42,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85492261] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:42,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:42,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:42,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794358975] [2022-03-03 17:15:42,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:42,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:42,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:42,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:42,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:42,144 INFO L87 Difference]: Start difference. First operand 5295 states and 13903 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:44,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:44,439 INFO L93 Difference]: Finished difference Result 10076 states and 26330 transitions. [2022-03-03 17:15:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-03 17:15:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:44,453 INFO L225 Difference]: With dead ends: 10076 [2022-03-03 17:15:44,453 INFO L226 Difference]: Without dead ends: 9779 [2022-03-03 17:15:44,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=966, Invalid=3456, Unknown=0, NotChecked=0, Total=4422 [2022-03-03 17:15:44,454 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 1260 mSDsluCounter, 6734 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 6962 SdHoareTripleChecker+Invalid, 1302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:44,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 6962 Invalid, 1302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-03 17:15:44,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9779 states. [2022-03-03 17:15:44,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 5299. [2022-03-03 17:15:44,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5299 states, 5298 states have (on average 2.6255190637976593) internal successors, (13910), 5298 states have internal predecessors, (13910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:44,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5299 states to 5299 states and 13910 transitions. [2022-03-03 17:15:44,541 INFO L78 Accepts]: Start accepts. Automaton has 5299 states and 13910 transitions. Word has length 135 [2022-03-03 17:15:44,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:44,542 INFO L470 AbstractCegarLoop]: Abstraction has 5299 states and 13910 transitions. [2022-03-03 17:15:44,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:44,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5299 states and 13910 transitions. [2022-03-03 17:15:44,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:44,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:44,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:44,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable365 [2022-03-03 17:15:44,547 INFO L402 AbstractCegarLoop]: === Iteration 367 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:44,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:44,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1208709059, now seen corresponding path program 316 times [2022-03-03 17:15:44,547 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:44,547 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339634990] [2022-03-03 17:15:44,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:44,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:44,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:44,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339634990] [2022-03-03 17:15:44,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339634990] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:44,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:44,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:44,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458534219] [2022-03-03 17:15:44,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:44,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:44,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:44,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:44,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:44,971 INFO L87 Difference]: Start difference. First operand 5299 states and 13910 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:46,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:46,589 INFO L93 Difference]: Finished difference Result 9960 states and 26032 transitions. [2022-03-03 17:15:46,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-03 17:15:46,589 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:46,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:46,600 INFO L225 Difference]: With dead ends: 9960 [2022-03-03 17:15:46,600 INFO L226 Difference]: Without dead ends: 9694 [2022-03-03 17:15:46,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=797, Invalid=2863, Unknown=0, NotChecked=0, Total=3660 [2022-03-03 17:15:46,600 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 1185 mSDsluCounter, 6577 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:46,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1185 Valid, 6813 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:15:46,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9694 states. [2022-03-03 17:15:46,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9694 to 5303. [2022-03-03 17:15:46,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5303 states, 5302 states have (on average 2.624858543945681) internal successors, (13917), 5302 states have internal predecessors, (13917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5303 states to 5303 states and 13917 transitions. [2022-03-03 17:15:46,672 INFO L78 Accepts]: Start accepts. Automaton has 5303 states and 13917 transitions. Word has length 135 [2022-03-03 17:15:46,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:46,673 INFO L470 AbstractCegarLoop]: Abstraction has 5303 states and 13917 transitions. [2022-03-03 17:15:46,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:46,673 INFO L276 IsEmpty]: Start isEmpty. Operand 5303 states and 13917 transitions. [2022-03-03 17:15:46,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:46,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:46,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:46,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable366 [2022-03-03 17:15:46,678 INFO L402 AbstractCegarLoop]: === Iteration 368 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:46,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:46,678 INFO L85 PathProgramCache]: Analyzing trace with hash -960139413, now seen corresponding path program 317 times [2022-03-03 17:15:46,678 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:46,678 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515792467] [2022-03-03 17:15:46,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:46,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:46,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:46,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:46,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515792467] [2022-03-03 17:15:46,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515792467] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:46,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:46,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:46,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926390333] [2022-03-03 17:15:46,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:46,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:46,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:46,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:46,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:46,931 INFO L87 Difference]: Start difference. First operand 5303 states and 13917 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:48,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:48,715 INFO L93 Difference]: Finished difference Result 9874 states and 25808 transitions. [2022-03-03 17:15:48,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-03 17:15:48,715 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:48,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:48,729 INFO L225 Difference]: With dead ends: 9874 [2022-03-03 17:15:48,729 INFO L226 Difference]: Without dead ends: 9583 [2022-03-03 17:15:48,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=759, Invalid=2547, Unknown=0, NotChecked=0, Total=3306 [2022-03-03 17:15:48,730 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 1160 mSDsluCounter, 6447 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 6690 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:48,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 6690 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:15:48,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9583 states. [2022-03-03 17:15:48,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9583 to 5275. [2022-03-03 17:15:48,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5275 states, 5274 states have (on average 2.6287447857413726) internal successors, (13864), 5274 states have internal predecessors, (13864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5275 states to 5275 states and 13864 transitions. [2022-03-03 17:15:48,810 INFO L78 Accepts]: Start accepts. Automaton has 5275 states and 13864 transitions. Word has length 135 [2022-03-03 17:15:48,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:48,810 INFO L470 AbstractCegarLoop]: Abstraction has 5275 states and 13864 transitions. [2022-03-03 17:15:48,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:48,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5275 states and 13864 transitions. [2022-03-03 17:15:48,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:48,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:48,816 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:48,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable367 [2022-03-03 17:15:48,816 INFO L402 AbstractCegarLoop]: === Iteration 369 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:48,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:48,816 INFO L85 PathProgramCache]: Analyzing trace with hash 378950989, now seen corresponding path program 318 times [2022-03-03 17:15:48,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:48,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044364521] [2022-03-03 17:15:48,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:48,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:49,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:49,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:49,154 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044364521] [2022-03-03 17:15:49,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044364521] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:49,154 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:49,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:49,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697629513] [2022-03-03 17:15:49,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:49,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:49,154 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:49,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:49,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:49,155 INFO L87 Difference]: Start difference. First operand 5275 states and 13864 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:51,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:15:51,801 INFO L93 Difference]: Finished difference Result 10935 states and 28482 transitions. [2022-03-03 17:15:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-03 17:15:51,802 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2022-03-03 17:15:51,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:15:51,814 INFO L225 Difference]: With dead ends: 10935 [2022-03-03 17:15:51,814 INFO L226 Difference]: Without dead ends: 10111 [2022-03-03 17:15:51,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1020 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1480, Invalid=4682, Unknown=0, NotChecked=0, Total=6162 [2022-03-03 17:15:51,815 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 1755 mSDsluCounter, 8078 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1755 SdHoareTripleChecker+Valid, 8288 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:51,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1755 Valid, 8288 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:15:51,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10111 states. [2022-03-03 17:15:51,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10111 to 5327. [2022-03-03 17:15:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5327 states, 5326 states have (on average 2.6201652271873828) internal successors, (13955), 5326 states have internal predecessors, (13955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5327 states to 5327 states and 13955 transitions. [2022-03-03 17:15:51,898 INFO L78 Accepts]: Start accepts. Automaton has 5327 states and 13955 transitions. Word has length 135 [2022-03-03 17:15:51,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:15:51,898 INFO L470 AbstractCegarLoop]: Abstraction has 5327 states and 13955 transitions. [2022-03-03 17:15:51,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:15:51,898 INFO L276 IsEmpty]: Start isEmpty. Operand 5327 states and 13955 transitions. [2022-03-03 17:15:51,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-03-03 17:15:51,904 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:15:51,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:15:51,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable368 [2022-03-03 17:15:51,904 INFO L402 AbstractCegarLoop]: === Iteration 370 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 17:15:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:15:51,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2133966651, now seen corresponding path program 319 times [2022-03-03 17:15:51,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:15:51,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812630202] [2022-03-03 17:15:51,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:15:51,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:15:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:15:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:15:52,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:15:52,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812630202] [2022-03-03 17:15:52,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812630202] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:15:52,169 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:15:52,169 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-03 17:15:52,169 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141874363] [2022-03-03 17:15:52,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:15:52,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-03 17:15:52,170 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:15:52,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-03 17:15:52,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=592, Unknown=0, NotChecked=0, Total=650 [2022-03-03 17:15:52,170 INFO L87 Difference]: Start difference. First operand 5327 states and 13955 transitions. Second operand has 26 states, 26 states have (on average 5.1923076923076925) internal successors, (135), 26 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-03 17:15:53,197 WARN L244 SmtUtils]: Removed 3 from assertion stack [2022-03-03 17:15:53,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-03 17:15:53,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=343, Invalid=1463, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 17:15:53,198 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 576 mSDsluCounter, 6223 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 1069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-03 17:15:53,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [576 Valid, 6466 Invalid, 1069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1069 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-03 17:15:53,198 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-03 17:15:53,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable369 [2022-03-03 17:15:53,199 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5327states) and FLOYD_HOARE automaton (currently 20 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 63 for 48ms.. [2022-03-03 17:15:53,200 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-03 17:15:53,200 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-03 17:15:53,202 INFO L732 BasicCegarLoop]: Path program histogram: [319, 20, 20, 7, 1, 1, 1, 1] [2022-03-03 17:15:53,213 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 17:15:53,214 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 17:15:53,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 05:15:53 BasicIcfg [2022-03-03 17:15:53,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 17:15:53,215 INFO L158 Benchmark]: Toolchain (without parser) took 846178.22ms. Allocated memory was 177.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 126.8MB in the beginning and 767.4MB in the end (delta: -640.6MB). Peak memory consumption was 634.7MB. Max. memory is 8.0GB. [2022-03-03 17:15:53,215 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 177.2MB. Free memory is still 142.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 17:15:53,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.52ms. Allocated memory is still 177.2MB. Free memory was 126.7MB in the beginning and 152.7MB in the end (delta: -26.0MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2022-03-03 17:15:53,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.46ms. Allocated memory is still 177.2MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 17:15:53,215 INFO L158 Benchmark]: Boogie Preprocessor took 35.10ms. Allocated memory is still 177.2MB. Free memory was 150.6MB in the beginning and 149.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 17:15:53,215 INFO L158 Benchmark]: RCFGBuilder took 367.81ms. Allocated memory is still 177.2MB. Free memory was 149.6MB in the beginning and 134.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-03-03 17:15:53,215 INFO L158 Benchmark]: TraceAbstraction took 845425.97ms. Allocated memory was 177.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 134.3MB in the beginning and 767.4MB in the end (delta: -633.1MB). Peak memory consumption was 642.0MB. Max. memory is 8.0GB. [2022-03-03 17:15:53,216 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 142.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 301.52ms. Allocated memory is still 177.2MB. Free memory was 126.7MB in the beginning and 152.7MB in the end (delta: -26.0MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.46ms. Allocated memory is still 177.2MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.10ms. Allocated memory is still 177.2MB. Free memory was 150.6MB in the beginning and 149.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 367.81ms. Allocated memory is still 177.2MB. Free memory was 149.6MB in the beginning and 134.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 845425.97ms. Allocated memory was 177.2MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 134.3MB in the beginning and 767.4MB in the end (delta: -633.1MB). Peak memory consumption was 642.0MB. 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: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5327states) and FLOYD_HOARE automaton (currently 20 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 63 for 48ms.. - TimeoutResultAtElement [Line: 65]: 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 (5327states) and FLOYD_HOARE automaton (currently 20 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 63 for 48ms.. - TimeoutResultAtElement [Line: 64]: 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 (5327states) and FLOYD_HOARE automaton (currently 20 states, 26 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 63 for 48ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 248 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 845.3s, OverallIterations: 370, TraceHistogramMax: 1, PathProgramHistogramMax: 319, EmptinessCheckTime: 2.2s, AutomataDifference: 691.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 357292 SdHoareTripleChecker+Valid, 152.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 357292 mSDsluCounter, 2412214 SdHoareTripleChecker+Invalid, 129.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2322064 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 450332 IncrementalHoareTripleChecker+Invalid, 450367 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 137846 mSDtfsCounter, 450332 mSolverCounterSat, 3.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31949 GetRequests, 10885 SyntacticMatches, 0 SemanticMatches, 21063 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169773 ImplicationChecksByTransitivity, 579.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7153occurred in iteration=0, InterpolantAutomatonStates: 14244, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 34.0s AutomataMinimizationTime, 369 MinimizatonAttempts, 1541931 StatesRemovedByMinimization, 367 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 111.2s InterpolantComputationTime, 47706 NumberOfCodeBlocks, 47706 NumberOfCodeBlocksAsserted, 370 NumberOfCheckSat, 47336 ConstructedInterpolants, 0 QuantifiedInterpolants, 363846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 370 InterpolantComputations, 370 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