/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 15:44:05,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 15:44:05,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 15:44:05,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 15:44:05,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 15:44:05,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 15:44:05,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 15:44:05,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 15:44:05,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 15:44:05,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 15:44:05,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 15:44:05,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 15:44:05,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 15:44:05,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 15:44:05,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 15:44:05,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 15:44:05,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 15:44:05,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 15:44:05,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 15:44:05,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 15:44:05,915 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 15:44:05,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 15:44:05,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 15:44:05,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 15:44:05,927 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 15:44:05,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 15:44:05,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 15:44:05,929 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 15:44:05,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 15:44:05,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 15:44:05,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 15:44:05,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 15:44:05,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 15:44:05,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 15:44:05,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 15:44:05,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 15:44:05,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 15:44:05,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 15:44:05,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 15:44:05,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 15:44:05,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 15:44:05,940 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 15:44:05,979 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 15:44:05,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 15:44:05,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 15:44:05,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 15:44:05,981 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 15:44:05,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 15:44:05,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 15:44:05,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 15:44:05,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 15:44:05,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 15:44:05,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 15:44:05,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 15:44:05,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 15:44:05,984 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 15:44:05,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 15:44:05,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 15:44:05,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 15:44:05,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 15:44:05,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 15:44:05,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 15:44:05,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 15:44:05,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:44:05,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 15:44:05,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 15:44:05,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 15:44:05,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 15:44:05,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 15:44:05,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 15:44:05,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 15:44:05,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 15:44:06,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 15:44:06,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 15:44:06,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 15:44:06,312 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 15:44:06,312 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 15:44:06,313 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-2.i [2020-10-12 15:44:06,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33d07b972/bf59f8b3bbc14ffb963765b717442706/FLAG86960c49b [2020-10-12 15:44:06,948 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 15:44:06,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_unbounded-2.i [2020-10-12 15:44:06,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33d07b972/bf59f8b3bbc14ffb963765b717442706/FLAG86960c49b [2020-10-12 15:44:07,221 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/33d07b972/bf59f8b3bbc14ffb963765b717442706 [2020-10-12 15:44:07,230 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 15:44:07,232 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 15:44:07,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 15:44:07,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 15:44:07,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 15:44:07,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46a0d076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07, skipping insertion in model container [2020-10-12 15:44:07,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 15:44:07,294 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 15:44:07,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:44:07,790 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 15:44:07,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 15:44:07,925 INFO L208 MainTranslator]: Completed translation [2020-10-12 15:44:07,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07 WrapperNode [2020-10-12 15:44:07,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 15:44:07,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 15:44:07,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 15:44:07,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 15:44:07,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:07,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:08,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... [2020-10-12 15:44:08,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 15:44:08,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 15:44:08,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 15:44:08,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 15:44:08,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 15:44:08,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 15:44:08,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 15:44:08,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-12 15:44:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-12 15:44:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 15:44:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-12 15:44:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-10-12 15:44:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-10-12 15:44:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-10-12 15:44:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-10-12 15:44:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-10-12 15:44:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-10-12 15:44:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-10-12 15:44:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-10-12 15:44:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-10-12 15:44:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-12 15:44:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-10-12 15:44:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-10-12 15:44:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-10-12 15:44:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-12 15:44:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-12 15:44:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-12 15:44:08,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-12 15:44:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-10-12 15:44:08,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 15:44:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-12 15:44:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-12 15:44:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-12 15:44:08,080 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-12 15:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-12 15:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-12 15:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-12 15:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-12 15:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-12 15:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-12 15:44:08,081 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-12 15:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-12 15:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-12 15:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-12 15:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-12 15:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-12 15:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-12 15:44:08,082 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-12 15:44:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-12 15:44:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-12 15:44:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-12 15:44:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-12 15:44:08,083 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-12 15:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-12 15:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-12 15:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-12 15:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-12 15:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-12 15:44:08,084 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-12 15:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-12 15:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-12 15:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-12 15:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-12 15:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-12 15:44:08,085 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-12 15:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-12 15:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-12 15:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-12 15:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-12 15:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-12 15:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-12 15:44:08,086 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-12 15:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-12 15:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-12 15:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-12 15:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-12 15:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-12 15:44:08,087 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-12 15:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-12 15:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-12 15:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-12 15:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-12 15:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 15:44:08,088 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-12 15:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-12 15:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 15:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-12 15:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-12 15:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-12 15:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-12 15:44:08,089 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-12 15:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 15:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-12 15:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-12 15:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-12 15:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 15:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-12 15:44:08,090 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-12 15:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-12 15:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-12 15:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-12 15:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-12 15:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-12 15:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-12 15:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-12 15:44:08,091 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-12 15:44:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-12 15:44:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-12 15:44:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-12 15:44:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-12 15:44:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-12 15:44:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-12 15:44:08,092 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-12 15:44:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-12 15:44:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-12 15:44:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-12 15:44:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-12 15:44:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-12 15:44:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-12 15:44:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-12 15:44:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-12 15:44:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-12 15:44:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-12 15:44:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-12 15:44:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-12 15:44:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-12 15:44:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-12 15:44:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-12 15:44:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-12 15:44:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-12 15:44:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-12 15:44:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-12 15:44:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-12 15:44:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-12 15:44:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-12 15:44:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 15:44:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 15:44:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 15:44:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-12 15:44:08,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 15:44:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-10-12 15:44:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-10-12 15:44:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 15:44:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-10-12 15:44:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-10-12 15:44:08,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-10-12 15:44:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 15:44:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-10-12 15:44:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-10-12 15:44:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-10-12 15:44:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-10-12 15:44:08,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-12 15:44:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-10-12 15:44:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-10-12 15:44:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-10-12 15:44:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 15:44:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-12 15:44:08,099 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-12 15:44:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-12 15:44:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-12 15:44:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-10-12 15:44:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 15:44:08,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 15:44:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 15:44:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-12 15:44:08,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 15:44:08,839 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 15:44:08,839 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 15:44:08,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:44:08 BoogieIcfgContainer [2020-10-12 15:44:08,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 15:44:08,846 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 15:44:08,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 15:44:08,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 15:44:08,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 03:44:07" (1/3) ... [2020-10-12 15:44:08,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49996046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:44:08, skipping insertion in model container [2020-10-12 15:44:08,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 03:44:07" (2/3) ... [2020-10-12 15:44:08,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49996046 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 03:44:08, skipping insertion in model container [2020-10-12 15:44:08,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 03:44:08" (3/3) ... [2020-10-12 15:44:08,853 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-2.i [2020-10-12 15:44:08,880 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 15:44:08,887 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-12 15:44:08,898 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-12 15:44:08,921 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 15:44:08,922 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 15:44:08,922 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 15:44:08,922 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 15:44:08,922 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 15:44:08,923 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 15:44:08,923 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 15:44:08,923 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 15:44:08,946 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2020-10-12 15:44:08,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-12 15:44:08,955 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:08,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:44:08,957 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:08,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:08,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1344016265, now seen corresponding path program 1 times [2020-10-12 15:44:08,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:08,970 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019997363] [2020-10-12 15:44:08,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:09,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:09,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:09,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:09,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:09,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-12 15:44:09,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 15:44:09,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 819 [2020-10-12 15:44:09,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-12 15:44:09,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:09,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 15:44:09,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 15:44:10,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:10,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:10,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:10,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:10,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:10,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:10,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 15:44:10,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:10,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:10,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:10,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:10,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:10,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:10,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:10,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 15:44:10,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:10,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:44:10,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:10,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:10,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 15:44:10,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:10,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-12 15:44:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:10,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:10,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:10,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:44:10,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:10,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-12 15:44:10,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:10,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:10,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 15:44:10,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:10,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:10,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:44:10,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019997363] [2020-10-12 15:44:10,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:44:10,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-12 15:44:10,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660617176] [2020-10-12 15:44:10,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 15:44:10,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:44:10,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 15:44:10,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 15:44:10,194 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 5 states. [2020-10-12 15:44:10,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:44:10,951 INFO L93 Difference]: Finished difference Result 274 states and 343 transitions. [2020-10-12 15:44:10,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:44:10,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-10-12 15:44:10,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:44:10,966 INFO L225 Difference]: With dead ends: 274 [2020-10-12 15:44:10,967 INFO L226 Difference]: Without dead ends: 152 [2020-10-12 15:44:10,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:44:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-12 15:44:11,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-10-12 15:44:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-12 15:44:11,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2020-10-12 15:44:11,039 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 24 [2020-10-12 15:44:11,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:44:11,039 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2020-10-12 15:44:11,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 15:44:11,040 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2020-10-12 15:44:11,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-12 15:44:11,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:11,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:44:11,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 15:44:11,042 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:11,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:11,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1778638311, now seen corresponding path program 1 times [2020-10-12 15:44:11,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:11,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592260022] [2020-10-12 15:44:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-12 15:44:11,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-10-12 15:44:11,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-12 15:44:11,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:11,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-12 15:44:11,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:11,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:11,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 15:44:11,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:11,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:11,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:11,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 15:44:11,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 15:44:11,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:11,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:11,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 15:44:11,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:11,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 15:44:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:44:11,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 15:44:11,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-12 15:44:11,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:11,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:44:11,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:11,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:11,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:11,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:11,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:11,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:11,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 15:44:11,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:11,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:44:11,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:11,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 15:44:11,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592260022] [2020-10-12 15:44:11,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:44:11,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-12 15:44:11,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213115783] [2020-10-12 15:44:11,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 15:44:11,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:44:11,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 15:44:11,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-12 15:44:11,684 INFO L87 Difference]: Start difference. First operand 120 states and 133 transitions. Second operand 9 states. [2020-10-12 15:44:12,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:44:12,851 INFO L93 Difference]: Finished difference Result 152 states and 169 transitions. [2020-10-12 15:44:12,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-12 15:44:12,852 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-10-12 15:44:12,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:44:12,854 INFO L225 Difference]: With dead ends: 152 [2020-10-12 15:44:12,855 INFO L226 Difference]: Without dead ends: 134 [2020-10-12 15:44:12,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2020-10-12 15:44:12,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-10-12 15:44:12,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 116. [2020-10-12 15:44:12,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-12 15:44:12,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 128 transitions. [2020-10-12 15:44:12,876 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 128 transitions. Word has length 28 [2020-10-12 15:44:12,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:44:12,877 INFO L479 AbstractCegarLoop]: Abstraction has 116 states and 128 transitions. [2020-10-12 15:44:12,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 15:44:12,877 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 128 transitions. [2020-10-12 15:44:12,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 15:44:12,882 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:12,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:44:12,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 15:44:12,882 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:12,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:12,883 INFO L82 PathProgramCache]: Analyzing trace with hash -404595222, now seen corresponding path program 1 times [2020-10-12 15:44:12,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:12,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113437176] [2020-10-12 15:44:12,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:12,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 15:44:13,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-12 15:44:13,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:44:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-12 15:44:13,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 15:44:13,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:13,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:44:13,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:13,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 15:44:13,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 15:44:13,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:13,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:44:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 15:44:13,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:44:13,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:13,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:44:13,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 15:44:13,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:13,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:44:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:44:13,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 15:44:13,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:13,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:13,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 15:44:13,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 15:44:13,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 15:44:13,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:13,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-12 15:44:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:13,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:13,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-12 15:44:13,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:13,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 15:44:13,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:13,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 15:44:13,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:13,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:44:13,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:13,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-12 15:44:13,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113437176] [2020-10-12 15:44:13,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 15:44:13,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 15:44:13,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726789272] [2020-10-12 15:44:13,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 15:44:13,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 15:44:13,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 15:44:13,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-12 15:44:13,218 INFO L87 Difference]: Start difference. First operand 116 states and 128 transitions. Second operand 7 states. [2020-10-12 15:44:13,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 15:44:13,773 INFO L93 Difference]: Finished difference Result 137 states and 155 transitions. [2020-10-12 15:44:13,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 15:44:13,774 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-12 15:44:13,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 15:44:13,777 INFO L225 Difference]: With dead ends: 137 [2020-10-12 15:44:13,777 INFO L226 Difference]: Without dead ends: 135 [2020-10-12 15:44:13,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-12 15:44:13,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-12 15:44:13,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 120. [2020-10-12 15:44:13,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-12 15:44:13,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 134 transitions. [2020-10-12 15:44:13,799 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 134 transitions. Word has length 46 [2020-10-12 15:44:13,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 15:44:13,799 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 134 transitions. [2020-10-12 15:44:13,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 15:44:13,800 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 134 transitions. [2020-10-12 15:44:13,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 15:44:13,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 15:44:13,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 15:44:13,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 15:44:13,803 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 15:44:13,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 15:44:13,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1170008083, now seen corresponding path program 1 times [2020-10-12 15:44:13,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 15:44:13,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [232657578] [2020-10-12 15:44:13,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 15:44:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:13,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:14,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:14,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-12 15:44:14,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-10-12 15:44:14,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-12 15:44:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 15:44:14,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-12 15:44:14,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:15,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 15:44:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:15,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:15,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:15,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 15:44:15,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:15,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 15:44:15,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:15,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 15:44:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:15,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:15,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 15:44:15,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:15,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 15:44:15,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:15,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:15,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 15:44:15,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:15,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-12 15:44:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:15,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:15,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 15:44:15,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:15,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 15:44:15,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:15,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 15:44:15,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 15:44:15,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:15,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:15,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:15,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 15:44:15,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:15,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 15:44:15,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:15,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 15:44:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 15:44:15,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 15:44:15,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 15:44:15,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-12 15:44:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:15,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:15,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:15,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-12 15:44:15,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:15,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-12 15:44:15,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 15:44:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:15,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-12 15:44:15,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 15:44:15,924 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-12 15:44:15,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 15:44:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 15:44:16,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 15:44:16,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 15:44:16,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 15:44:16,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 15:44:16,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 369 [2020-10-12 15:44:16,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 15:44:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 15:44:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 15:44:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-12 15:44:16,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0