/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 SingleStatement --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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:20:32,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:20:32,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:20:32,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:20:32,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:20:32,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:20:32,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:20:32,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:20:32,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:20:32,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:20:32,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:20:32,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:20:32,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:20:32,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:20:32,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:20:32,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:20:32,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:20:32,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:20:32,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:20:32,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:20:32,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:20:32,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:20:32,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:20:32,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:20:32,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:20:32,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:20:32,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:20:32,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:20:32,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:20:32,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:20:32,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:20:32,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:20:32,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:20:32,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:20:32,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:20:32,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:20:32,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:20:32,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:20:32,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:20:32,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:20:32,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:20:32,367 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 [2020-09-25 12:20:32,403 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:20:32,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:20:32,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:20:32,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:20:32,407 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:20:32,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:20:32,408 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:20:32,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:20:32,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:20:32,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:20:32,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:20:32,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:20:32,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:20:32,410 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:20:32,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:20:32,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:20:32,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:20:32,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:20:32,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:20:32,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:20:32,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:20:32,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:20:32,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:20:32,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:20:32,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:20:32,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:20:32,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:20:32,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:20:32,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:20:32,415 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 -> SingleStatement 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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=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=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true; [2020-09-25 12:20:32,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:20:32,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:20:32,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:20:32,936 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:20:32,936 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:20:32,937 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 12:20:33,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76048eadb/09fc90c3d7604b7eabfa54e8b42fc30d/FLAG1acc818f4 [2020-09-25 12:20:33,667 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:20:33,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 12:20:33,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76048eadb/09fc90c3d7604b7eabfa54e8b42fc30d/FLAG1acc818f4 [2020-09-25 12:20:33,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76048eadb/09fc90c3d7604b7eabfa54e8b42fc30d [2020-09-25 12:20:33,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:20:33,947 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:20:33,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:20:33,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:20:33,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:20:33,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:20:33" (1/1) ... [2020-09-25 12:20:33,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@698c9706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:33, skipping insertion in model container [2020-09-25 12:20:33,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:20:33" (1/1) ... [2020-09-25 12:20:33,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:20:34,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:20:34,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:20:34,574 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:20:34,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:20:34,716 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:20:34,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34 WrapperNode [2020-09-25 12:20:34,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:20:34,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:20:34,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:20:34,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:20:34,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34" (1/1) ... [2020-09-25 12:20:34,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34" (1/1) ... [2020-09-25 12:20:34,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34" (1/1) ... [2020-09-25 12:20:34,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34" (1/1) ... [2020-09-25 12:20:34,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34" (1/1) ... [2020-09-25 12:20:34,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34" (1/1) ... [2020-09-25 12:20:34,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34" (1/1) ... [2020-09-25 12:20:34,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:20:34,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:20:34,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:20:34,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:20:34,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34" (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 [2020-09-25 12:20:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:20:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:20:34,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 12:20:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 12:20:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 12:20:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 12:20:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-25 12:20:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-25 12:20:34,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-25 12:20:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-25 12:20:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-25 12:20:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-25 12:20:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-25 12:20:34,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-25 12:20:34,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-25 12:20:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 12:20:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-25 12:20:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-25 12:20:34,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-25 12:20:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 12:20:34,890 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 12:20:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 12:20:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 12:20:34,891 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 12:20:34,893 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:20:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 12:20:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 12:20:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 12:20:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 12:20:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 12:20:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 12:20:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 12:20:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 12:20:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 12:20:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 12:20:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 12:20:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 12:20:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 12:20:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 12:20:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 12:20:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 12:20:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 12:20:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 12:20:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 12:20:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 12:20:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 12:20:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 12:20:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 12:20:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 12:20:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 12:20:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 12:20:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 12:20:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 12:20:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 12:20:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 12:20:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 12:20:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 12:20:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 12:20:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 12:20:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 12:20:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 12:20:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 12:20:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 12:20:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 12:20:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 12:20:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 12:20:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 12:20:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 12:20:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 12:20:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 12:20:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 12:20:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 12:20:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 12:20:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 12:20:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 12:20:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 12:20:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 12:20:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 12:20:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 12:20:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 12:20:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 12:20:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 12:20:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 12:20:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 12:20:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 12:20:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 12:20:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 12:20:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 12:20:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 12:20:34,907 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 12:20:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 12:20:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 12:20:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 12:20:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 12:20:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 12:20:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 12:20:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 12:20:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 12:20:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 12:20:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 12:20:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:20:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 12:20:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:20:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 12:20:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 12:20:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-25 12:20:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-25 12:20:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 12:20:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-25 12:20:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-25 12:20:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-25 12:20:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 12:20:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-25 12:20:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-25 12:20:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-25 12:20:34,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-25 12:20:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 12:20:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-25 12:20:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-25 12:20:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-25 12:20:34,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 12:20:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 12:20:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 12:20:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 12:20:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 12:20:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 12:20:34,927 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:20:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:20:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 12:20:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 12:20:34,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:20:35,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:20:35,737 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 12:20:35,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:20:35 BoogieIcfgContainer [2020-09-25 12:20:35,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:20:35,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:20:35,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:20:35,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:20:35,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:20:33" (1/3) ... [2020-09-25 12:20:35,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53838141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:20:35, skipping insertion in model container [2020-09-25 12:20:35,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:20:34" (2/3) ... [2020-09-25 12:20:35,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53838141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:20:35, skipping insertion in model container [2020-09-25 12:20:35,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:20:35" (3/3) ... [2020-09-25 12:20:35,767 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-25 12:20:35,778 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:20:35,789 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 12:20:35,811 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 12:20:35,840 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:20:35,840 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:20:35,840 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:20:35,841 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:20:35,841 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:20:35,841 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:20:35,841 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:20:35,841 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:20:35,866 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-25 12:20:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 12:20:35,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:20:35,875 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:20:35,875 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:20:35,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:20:35,883 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-25 12:20:35,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:20:35,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749754222] [2020-09-25 12:20:35,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:20:36,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:36,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:36,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:36,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 12:20:36,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:36,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-09-25 12:20:36,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:36,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:20:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 12:20:36,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:20:36,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:20:36,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:20:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:36,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:36,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:36,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:20:36,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:36,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 12:20:36,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:36,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:36,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:36,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:36,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:20:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:36,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:36,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:36,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:20:36,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:36,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:20:36,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:36,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:36,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:36,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:36,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:36,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:20:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:36,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:36,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:36,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:20:36,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:36,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 12:20:36,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:36,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:36,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:36,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:36,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:20:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:36,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:36,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:36,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:20:36,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:36,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:20:36,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:36,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:36,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:36,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:36,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:36,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 12:20:36,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:20:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:36,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:36,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:36,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:20:36,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:36,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 12:20:36,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:36,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:36,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:36,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:36,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:20:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:36,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:36,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:36,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:20:36,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:36,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 12:20:36,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:36,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:36,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:36,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:36,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 12:20:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:36,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:36,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:36,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:20:36,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:36,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 12:20:36,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:36,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:20:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:36,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:20:36,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 12:20:36,993 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749754222] [2020-09-25 12:20:36,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:20:36,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 12:20:36,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195994130] [2020-09-25 12:20:37,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 12:20:37,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:20:37,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 12:20:37,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:20:37,026 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-25 12:20:37,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:20:37,809 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-25 12:20:37,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:20:37,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-25 12:20:37,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:20:37,829 INFO L225 Difference]: With dead ends: 367 [2020-09-25 12:20:37,830 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 12:20:37,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:20:37,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 12:20:37,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-25 12:20:37,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-25 12:20:37,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-25 12:20:37,918 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-25 12:20:37,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:20:37,919 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-25 12:20:37,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 12:20:37,919 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-25 12:20:37,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 12:20:37,923 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:20:37,923 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:20:37,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:20:37,923 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:20:37,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:20:37,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-25 12:20:37,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:20:37,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490879299] [2020-09-25 12:20:37,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:20:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:37,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:38,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:38,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 12:20:38,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:38,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-09-25 12:20:38,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:38,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:20:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:20:38,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:20:38,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:38,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:20:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:38,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:38,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:38,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:20:38,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:38,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 12:20:38,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:38,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:20:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:38,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:20:38,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:38,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:20:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:38,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:38,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:20:38,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:38,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:20:38,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:38,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:38,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:20:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:38,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:20:38,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:38,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:20:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:38,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:38,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:38,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:20:38,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:38,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 12:20:38,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:38,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:20:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:38,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:20:38,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:38,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:20:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:38,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:38,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:38,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:20:38,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:38,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:20:38,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:38,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:38,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:38,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:20:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:38,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:38,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:38,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:20:38,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:38,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 12:20:38,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:38,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:20:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:20:38,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:38,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:20:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:38,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:38,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:38,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:20:38,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:38,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:20:38,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:38,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:38,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:38,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:38,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:38,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:38,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 12:20:38,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:38,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:38,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:38,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 12:20:38,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:38,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 12:20:38,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:38,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:20:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 12:20:38,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:20:38,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:39,184 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 12:20:39,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490879299] [2020-09-25 12:20:39,185 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:20:39,185 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 12:20:39,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688954033] [2020-09-25 12:20:39,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:20:39,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:20:39,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:20:39,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:20:39,188 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 10 states. [2020-09-25 12:20:39,540 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-09-25 12:20:39,742 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-09-25 12:20:39,919 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-09-25 12:20:40,500 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-09-25 12:20:40,804 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-09-25 12:20:41,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:20:41,731 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-25 12:20:41,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 12:20:41,732 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-25 12:20:41,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:20:41,738 INFO L225 Difference]: With dead ends: 494 [2020-09-25 12:20:41,738 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 12:20:41,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2020-09-25 12:20:41,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 12:20:41,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-25 12:20:41,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 12:20:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-25 12:20:41,782 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-25 12:20:41,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:20:41,783 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-25 12:20:41,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:20:41,783 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-25 12:20:41,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 12:20:41,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:20:41,789 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:20:41,789 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:20:41,790 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:20:41,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:20:41,790 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-25 12:20:41,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:20:41,790 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741013762] [2020-09-25 12:20:41,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:20:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:41,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:41,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:42,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:42,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 12:20:42,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:20:42,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 934 [2020-09-25 12:20:42,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:42,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:42,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:20:42,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 12:20:42,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:20:42,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:20:42,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:20:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:42,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:42,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:42,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:20:42,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 12:20:42,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:42,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:42,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:42,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:42,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:42,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:20:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:42,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:42,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:42,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:20:42,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:42,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:20:42,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:42,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:42,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:42,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:42,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:42,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:42,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:20:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:42,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:42,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:42,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:20:42,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:42,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:20:42,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:42,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:42,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:42,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:42,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:42,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:20:42,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:20:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:42,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:42,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:42,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:20:42,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:42,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:20:42,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:42,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:42,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:42,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:42,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:42,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:20:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:42,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:42,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:42,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:20:42,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:42,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 12:20:42,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:42,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:42,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:42,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:42,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:42,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:20:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:42,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:42,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:42,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:20:42,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:42,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 12:20:42,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:42,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:42,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:42,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:42,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:42,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 12:20:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:43,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:43,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 12:20:43,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:43,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 12:20:43,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:43,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:43,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:20:43,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:20:43,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:20:43,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:20:43,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:20:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:43,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:43,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:20:43,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:43,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 12:20:43,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:43,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:43,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:43,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:43,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:43,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:43,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 12:20:43,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:43,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:43,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:20:43,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:43,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 12:20:43,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:43,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:43,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:20:43,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:20:43,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:20:43,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:43,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:20:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:43,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:43,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:20:43,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:43,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 12:20:43,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:43,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:20:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:43,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:20:43,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:43,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-25 12:20:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:43,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:43,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 12:20:43,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:20:43,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-09-25 12:20:43,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:43,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:43,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:20:43,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 12:20:43,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:20:43,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:20:43,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:20:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:43,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:43,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:20:43,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:43,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 12:20:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:43,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:43,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:43,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 12:20:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:43,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:43,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 12:20:43,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:43,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 12:20:43,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:43,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:43,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:20:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 12:20:43,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 12:20:43,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:43,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:20:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:43,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:43,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:20:43,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:43,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 12:20:43,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:43,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 12:20:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:43,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 12:20:43,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:43,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 12:20:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:43,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:43,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:43,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:20:43,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:43,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 12:20:43,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:43,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:43,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:43,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:20:43,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:43,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:20:43,725 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-09-25 12:20:43,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741013762] [2020-09-25 12:20:43,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:20:43,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:20:43,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072462163] [2020-09-25 12:20:43,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:20:43,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:20:43,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:20:43,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:20:43,728 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-25 12:20:44,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:20:44,636 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-25 12:20:44,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:20:44,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-25 12:20:44,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:20:44,645 INFO L225 Difference]: With dead ends: 511 [2020-09-25 12:20:44,645 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 12:20:44,651 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:20:44,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 12:20:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-25 12:20:44,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 12:20:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-25 12:20:44,719 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-25 12:20:44,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:20:44,720 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-25 12:20:44,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:20:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-25 12:20:44,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 12:20:44,725 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:20:44,726 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:20:44,729 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:20:44,729 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:20:44,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:20:44,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-25 12:20:44,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:20:44,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239276980] [2020-09-25 12:20:44,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:20:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:44,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:45,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:45,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:49,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:49,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-25 12:20:49,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 12:20:49,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 12:20:49,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:49,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:20:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 12:20:49,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 12:20:49,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:20:49,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:20:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:49,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:49,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:49,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 12:20:49,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 12:20:49,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:49,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:20:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:20:49,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:20:49,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 12:20:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:49,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:49,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:49,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:20:49,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:49,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:20:49,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:49,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:20:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:49,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 12:20:49,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:20:49,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 12:20:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:49,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:49,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:49,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:20:49,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 12:20:49,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:49,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:49,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:20:49,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:49,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:20:49,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:49,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:20:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:49,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:49,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:49,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:20:49,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:49,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:20:49,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:49,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:49,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:49,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:49,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:49,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:49,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 12:20:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:49,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:50,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:50,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 12:20:50,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:50,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 12:20:50,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:50,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:20:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:50,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 12:20:50,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 12:20:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:50,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:50,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:50,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 12:20:50,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:50,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:20:50,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:50,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:50,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:50,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:50,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 12:20:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:50,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:50,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:51,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:51,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 12:20:51,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:20:51,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 949 [2020-09-25 12:20:51,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:51,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:51,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:20:51,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:20:51,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 12:20:51,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:20:51,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:20:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:51,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:51,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:51,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:20:51,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:51,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 12:20:51,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:51,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 12:20:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:51,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 12:20:51,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:20:51,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 12:20:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:51,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:51,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:51,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 12:20:51,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:51,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-09-25 12:20:51,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:51,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:51,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:20:51,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:20:51,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:20:51,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:51,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:20:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:51,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:51,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:51,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 12:20:51,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:51,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 12:20:51,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:51,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:51,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:20:51,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:51,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 12:20:51,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:51,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 12:20:51,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:51,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:51,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:52,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:52,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 12:20:52,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 12:20:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-09-25 12:20:52,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:52,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:20:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 12:20:52,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 12:20:52,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:20:52,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 12:20:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:52,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:52,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:52,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:20:52,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:52,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 12:20:52,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:52,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:52,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:20:52,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:52,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 12:20:52,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:52,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 12:20:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:52,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:52,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:52,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 12:20:52,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:52,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 12:20:52,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:52,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:52,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:20:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 12:20:52,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 12:20:52,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:52,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:20:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:52,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:52,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:52,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 12:20:52,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:52,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 12:20:52,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:52,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:20:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:20:52,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 12:20:52,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:20:52,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 12:20:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:20:52,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:20:52,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:20:52,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 12:20:52,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:20:52,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 12:20:52,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:20:52,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:20:52,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:20:52,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 12:20:52,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:20:52,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:20:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2020-09-25 12:20:52,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239276980] [2020-09-25 12:20:52,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:20:52,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 12:20:52,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434406333] [2020-09-25 12:20:52,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 12:20:52,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:20:52,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 12:20:52,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:20:52,612 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 16 states. [2020-09-25 12:20:56,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:20:56,878 INFO L93 Difference]: Finished difference Result 772 states and 860 transitions. [2020-09-25 12:20:56,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-25 12:20:56,879 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 144 [2020-09-25 12:20:56,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:20:56,883 INFO L225 Difference]: With dead ends: 772 [2020-09-25 12:20:56,883 INFO L226 Difference]: Without dead ends: 432 [2020-09-25 12:20:56,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 822 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=596, Invalid=2596, Unknown=0, NotChecked=0, Total=3192 [2020-09-25 12:20:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-09-25 12:20:56,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 352. [2020-09-25 12:20:56,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-09-25 12:20:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 382 transitions. [2020-09-25 12:20:56,916 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 382 transitions. Word has length 144 [2020-09-25 12:20:56,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:20:56,917 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 382 transitions. [2020-09-25 12:20:56,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 12:20:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 382 transitions. [2020-09-25 12:20:56,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 12:20:56,919 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:20:56,920 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:20:56,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:20:56,920 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:20:56,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:20:56,921 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-25 12:20:56,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:20:56,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52093985] [2020-09-25 12:20:56,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:20:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 12:20:56,974 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 12:20:56,974 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 12:20:56,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:20:57,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:20:57 BoogieIcfgContainer [2020-09-25 12:20:57,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 12:20:57,008 INFO L168 Benchmark]: Toolchain (without parser) took 23066.01 ms. Allocated memory was 140.5 MB in the beginning and 470.8 MB in the end (delta: 330.3 MB). Free memory was 101.9 MB in the beginning and 284.5 MB in the end (delta: -182.6 MB). Peak memory consumption was 147.7 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:57,009 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-25 12:20:57,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.80 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 164.7 MB in the end (delta: -63.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:57,011 INFO L168 Benchmark]: Boogie Preprocessor took 88.48 ms. Allocated memory is still 203.9 MB. Free memory was 164.7 MB in the beginning and 161.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:57,012 INFO L168 Benchmark]: RCFGBuilder took 935.84 ms. Allocated memory is still 203.9 MB. Free memory was 161.4 MB in the beginning and 93.0 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:57,013 INFO L168 Benchmark]: TraceAbstraction took 21247.00 ms. Allocated memory was 237.0 MB in the beginning and 470.8 MB in the end (delta: 233.8 MB). Free memory was 208.3 MB in the beginning and 284.5 MB in the end (delta: -76.2 MB). Peak memory consumption was 157.6 MB. Max. memory is 7.1 GB. [2020-09-25 12:20:57,017 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 770.80 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 164.7 MB in the end (delta: -63.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.48 ms. Allocated memory is still 203.9 MB. Free memory was 164.7 MB in the beginning and 161.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 935.84 ms. Allocated memory is still 203.9 MB. Free memory was 161.4 MB in the beginning and 93.0 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21247.00 ms. Allocated memory was 237.0 MB in the beginning and 470.8 MB in the end (delta: 233.8 MB). Free memory was 208.3 MB in the beginning and 284.5 MB in the end (delta: -76.2 MB). Peak memory consumption was 157.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 658]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L654] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L681] CALL foo() [L670] FCALL ldv_initialize() [L671] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L671] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L671] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L672] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L672] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L672] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L673] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L659] CALL ldv_set_add(m, &mutexes) [L625] CALL, EXPR ldv_is_in_set(new, s) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L625] RET, EXPR ldv_is_in_set(new, s) [L625] COND TRUE !ldv_is_in_set(new, s) [L626] struct ldv_list_element *le; [L627] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L627] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L627] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L628] le->e = new [L629] CALL ldv_list_add(&le->list, s) [L597] EXPR head->next [L597] CALL __ldv_list_add(new, head, head->next) [L585] next->prev = new [L586] new->next = next [L587] new->prev = prev [L588] prev->next = new [L597] RET __ldv_list_add(new, head, head->next) [L629] RET ldv_list_add(&le->list, s) [L659] RET ldv_set_add(m, &mutexes) [L673] RET mutex_lock(m1) [L674] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND TRUE &m->list != (s) [L645] EXPR m->e [L645] COND TRUE m->e == e [L646] return 1; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND TRUE ldv_is_in_set(m, &mutexes) [L658] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 215 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.1s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 780 SDtfs, 1777 SDslu, 598 SDs, 0 SdLazy, 3640 SolverSat, 379 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 930 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 169 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 250739 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 253/293 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 proved your program to be incorrect! Received shutdown request...