/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=0.5 --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 14:35:57,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:35:57,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:35:57,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:35:57,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:35:57,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:35:57,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:35:57,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:35:57,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:35:57,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:35:57,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:35:57,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:35:57,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:35:57,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:35:57,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:35:57,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:35:57,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:35:57,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:35:57,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:35:57,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:35:57,402 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:35:57,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:35:57,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:35:57,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:35:57,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:35:57,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:35:57,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:35:57,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:35:57,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:35:57,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:35:57,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:35:57,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:35:57,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:35:57,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:35:57,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:35:57,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:35:57,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:35:57,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:35:57,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:35:57,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:35:57,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:35:57,427 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 14:35:57,477 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:35:57,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:35:57,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:35:57,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:35:57,480 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:35:57,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:35:57,481 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:35:57,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:35:57,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:35:57,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:35:57,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:35:57,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:35:57,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:35:57,484 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:35:57,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:35:57,484 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:35:57,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:35:57,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:35:57,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:35:57,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:35:57,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:35:57,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:35:57,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:35:57,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:35:57,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:35:57,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:35:57,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:35:57,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:35:57,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:35:57,487 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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;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=0.5;log-additional-information=true; [2020-09-25 14:35:57,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:35:57,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:35:57,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:35:57,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:35:57,992 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:35:57,993 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 14:35:58,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/755da6da2/3725160978224a75b73bc589f97a8fdf/FLAG0021c7dbc [2020-09-25 14:35:58,745 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:35:58,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 14:35:58,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/755da6da2/3725160978224a75b73bc589f97a8fdf/FLAG0021c7dbc [2020-09-25 14:35:58,967 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/755da6da2/3725160978224a75b73bc589f97a8fdf [2020-09-25 14:35:58,984 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:35:58,991 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:35:58,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:35:58,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:35:58,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:35:59,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:35:58" (1/1) ... [2020-09-25 14:35:59,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431c6f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59, skipping insertion in model container [2020-09-25 14:35:59,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:35:58" (1/1) ... [2020-09-25 14:35:59,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:35:59,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:35:59,604 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:35:59,616 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:35:59,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:35:59,742 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:35:59,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59 WrapperNode [2020-09-25 14:35:59,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:35:59,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:35:59,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:35:59,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:35:59,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59" (1/1) ... [2020-09-25 14:35:59,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59" (1/1) ... [2020-09-25 14:35:59,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59" (1/1) ... [2020-09-25 14:35:59,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59" (1/1) ... [2020-09-25 14:35:59,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59" (1/1) ... [2020-09-25 14:35:59,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59" (1/1) ... [2020-09-25 14:35:59,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59" (1/1) ... [2020-09-25 14:35:59,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:35:59,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:35:59,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:35:59,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:35:59,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59" (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 14:35:59,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:35:59,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:35:59,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 14:35:59,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 14:35:59,917 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 14:35:59,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 14:35:59,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-25 14:35:59,919 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-25 14:35:59,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-25 14:35:59,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-25 14:35:59,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-25 14:35:59,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-25 14:35:59,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-25 14:35:59,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-25 14:35:59,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-25 14:35:59,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 14:35:59,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-25 14:35:59,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-25 14:35:59,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-25 14:35:59,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 14:35:59,923 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 14:35:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 14:35:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 14:35:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 14:35:59,925 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:35:59,926 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 14:35:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 14:35:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 14:35:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 14:35:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 14:35:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 14:35:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 14:35:59,927 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 14:35:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 14:35:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 14:35:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 14:35:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 14:35:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 14:35:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 14:35:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 14:35:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 14:35:59,928 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 14:35:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 14:35:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 14:35:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 14:35:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 14:35:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 14:35:59,929 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 14:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 14:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 14:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 14:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 14:35:59,930 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 14:35:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 14:35:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 14:35:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 14:35:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 14:35:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 14:35:59,931 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 14:35:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 14:35:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 14:35:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 14:35:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 14:35:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 14:35:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 14:35:59,932 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 14:35:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 14:35:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 14:35:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 14:35:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 14:35:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 14:35:59,933 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 14:35:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 14:35:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 14:35:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 14:35:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 14:35:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 14:35:59,934 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:35:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 14:35:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 14:35:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:35:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 14:35:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 14:35:59,935 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 14:35:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 14:35:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 14:35:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 14:35:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 14:35:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 14:35:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 14:35:59,936 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 14:35:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 14:35:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 14:35:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 14:35:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 14:35:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 14:35:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 14:35:59,937 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 14:35:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 14:35:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 14:35:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 14:35:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 14:35:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 14:35:59,938 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 14:35:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 14:35:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 14:35:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 14:35:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 14:35:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 14:35:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 14:35:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 14:35:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 14:35:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 14:35:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 14:35:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 14:35:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 14:35:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 14:35:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 14:35:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 14:35:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 14:35:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 14:35:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 14:35:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 14:35:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 14:35:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 14:35:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 14:35:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 14:35:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:35:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 14:35:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:35:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 14:35:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:35:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-25 14:35:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-25 14:35:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:35:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-25 14:35:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-25 14:35:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-25 14:35:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:35:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-25 14:35:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-25 14:35:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-25 14:35:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-25 14:35:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 14:35:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-25 14:35:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-25 14:35:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-25 14:35:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:35:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 14:35:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 14:35:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 14:35:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 14:35:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 14:35:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:35:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:35:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:35:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 14:35:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:36:00,781 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:36:00,782 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 14:36:00,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:36:00 BoogieIcfgContainer [2020-09-25 14:36:00,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:36:00,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:36:00,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:36:00,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:36:00,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:35:58" (1/3) ... [2020-09-25 14:36:00,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399b179e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:36:00, skipping insertion in model container [2020-09-25 14:36:00,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:35:59" (2/3) ... [2020-09-25 14:36:00,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399b179e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:36:00, skipping insertion in model container [2020-09-25 14:36:00,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:36:00" (3/3) ... [2020-09-25 14:36:00,798 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-25 14:36:00,822 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:36:00,833 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 14:36:00,853 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 14:36:00,880 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:36:00,880 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:36:00,880 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:36:00,880 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:36:00,880 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:36:00,880 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:36:00,880 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:36:00,881 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:36:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-25 14:36:00,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 14:36:00,917 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:36:00,918 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 14:36:00,919 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:36:00,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:36:00,926 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-25 14:36:00,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:36:00,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352349935] [2020-09-25 14:36:00,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:36:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:01,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:01,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:01,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 14:36:01,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:01,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-09-25 14:36:01,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:01,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:36:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 14:36:01,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:36:01,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:36:01,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:36:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:01,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:01,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:01,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:36:01,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:01,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:36:01,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:01,737 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:01,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:01,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:01,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:36:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:01,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:01,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:01,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:36:01,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:01,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:36:01,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:01,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:01,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:01,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:01,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:01,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:36:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:01,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:01,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:01,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 14:36:01,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:01,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 14:36:01,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:01,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:01,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:01,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:01,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:01,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:01,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:36:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:01,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:01,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:01,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:36:01,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:01,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:36:01,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:01,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:01,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:01,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:01,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:36:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:01,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:01,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:01,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 14:36:01,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:01,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:36:01,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:01,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:01,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:01,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:01,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:36:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:01,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:01,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:01,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:36:01,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:01,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:36:01,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:01,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:01,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:01,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:01,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:36:01,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 14:36:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:01,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:01,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:01,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:36:01,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:01,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 14:36:01,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:01,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:36:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:01,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:36:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:01,955 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 14:36:01,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352349935] [2020-09-25 14:36:01,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:36:01,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:36:01,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266569478] [2020-09-25 14:36:01,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:36:01,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:36:01,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:36:01,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:36:01,990 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-25 14:36:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:36:02,809 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-25 14:36:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:36:02,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-25 14:36:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:36:02,836 INFO L225 Difference]: With dead ends: 367 [2020-09-25 14:36:02,837 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 14:36:02,849 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 14:36:02,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 14:36:02,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-25 14:36:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-25 14:36:02,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-25 14:36:03,002 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-25 14:36:03,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:36:03,004 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-25 14:36:03,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:36:03,004 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-25 14:36:03,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 14:36:03,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:36:03,010 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 14:36:03,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:36:03,011 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:36:03,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:36:03,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-25 14:36:03,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:36:03,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509473354] [2020-09-25 14:36:03,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:36:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:03,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:03,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:03,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 14:36:03,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:03,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-09-25 14:36:03,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:03,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:36:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:36:03,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 14:36:03,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:03,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:36:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:03,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:03,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:03,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:36:03,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:03,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 14:36:03,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:03,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:03,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:36:03,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:03,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:36:03,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:03,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:36:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:03,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:03,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:03,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:36:03,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:03,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:36:03,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:03,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:03,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:36:03,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:03,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:36:03,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:03,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:36:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:03,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:04,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:04,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 14:36:04,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:04,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 14:36:04,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:04,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:04,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:36:04,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:04,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:36:04,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:04,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:36:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:04,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:04,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:04,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:36:04,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:04,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:36:04,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:04,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:04,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:04,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:04,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:04,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:04,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:36:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:04,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:04,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:04,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 14:36:04,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:04,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 14:36:04,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:04,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:04,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:36:04,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:04,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:36:04,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:04,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:36:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:04,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:04,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:04,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:36:04,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:04,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:36:04,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:04,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:04,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:04,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:04,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 14:36:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:04,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:04,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:04,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:36:04,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:04,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 14:36:04,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:04,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:04,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:36:04,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 14:36:04,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:36:04,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:04,572 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 14:36:04,573 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509473354] [2020-09-25 14:36:04,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:36:04,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 14:36:04,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450080370] [2020-09-25 14:36:04,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:36:04,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:36:04,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:36:04,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:36:04,578 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 10 states. [2020-09-25 14:36:04,990 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2020-09-25 14:36:05,175 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-09-25 14:36:05,314 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-09-25 14:36:06,111 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-09-25 14:36:07,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:36:07,054 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-25 14:36:07,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 14:36:07,055 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-25 14:36:07,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:36:07,061 INFO L225 Difference]: With dead ends: 494 [2020-09-25 14:36:07,062 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 14:36:07,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2020-09-25 14:36:07,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 14:36:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-25 14:36:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 14:36:07,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-25 14:36:07,105 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-25 14:36:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:36:07,106 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-25 14:36:07,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:36:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-25 14:36:07,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 14:36:07,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:36:07,110 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 14:36:07,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:36:07,111 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:36:07,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:36:07,111 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-25 14:36:07,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:36:07,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891218088] [2020-09-25 14:36:07,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:36:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:07,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:07,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 14:36:08,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:36:08,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 958 [2020-09-25 14:36:08,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:36:08,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 14:36:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:36:08,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:36:08,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:36:08,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:36:08,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:36:08,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:08,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:08,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:36:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:36:08,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:36:08,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:08,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:08,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:36:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 14:36:08,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:36:08,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:08,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:36:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:36:08,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:36:08,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:08,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:08,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:36:08,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 14:36:08,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:36:08,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:08,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:36:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:36:08,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:36:08,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:08,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:08,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 14:36:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 14:36:08,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 14:36:08,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:36:08,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:36:08,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:36:08,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:36:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:36:08,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:36:08,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:08,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 14:36:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:36:08,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 14:36:08,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:36:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:36:08,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:36:08,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:36:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:36:08,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 14:36:08,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:36:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:36:08,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-25 14:36:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 14:36:08,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:36:08,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 14:36:08,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:36:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 14:36:08,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:36:08,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:36:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:36:08,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:36:08,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:08,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:36:08,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 14:36:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 14:36:08,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 14:36:08,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:36:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 14:36:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:36:08,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:36:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:36:08,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 14:36:08,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 14:36:08,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:08,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:36:08,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:08,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 14:36:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:08,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:08,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:08,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:36:08,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 14:36:08,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:08,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:36:08,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:08,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:36:08,936 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 14:36:08,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891218088] [2020-09-25 14:36:08,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:36:08,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:36:08,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540754064] [2020-09-25 14:36:08,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:36:08,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:36:08,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:36:08,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:36:08,939 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-25 14:36:09,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:36:09,645 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-25 14:36:09,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:36:09,646 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-25 14:36:09,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:36:09,650 INFO L225 Difference]: With dead ends: 511 [2020-09-25 14:36:09,650 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 14:36:09,651 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 14:36:09,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 14:36:09,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-25 14:36:09,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 14:36:09,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-25 14:36:09,682 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-25 14:36:09,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:36:09,682 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-25 14:36:09,682 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:36:09,682 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-25 14:36:09,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 14:36:09,689 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:36:09,690 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 14:36:09,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:36:09,690 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:36:09,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:36:09,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-25 14:36:09,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:36:09,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [860230228] [2020-09-25 14:36:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:36:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:09,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:10,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:14,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:14,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-25 14:36:14,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:36:14,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 14:36:14,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:14,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:36:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 14:36:14,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 14:36:14,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:36:14,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:36:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:14,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:14,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:14,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 14:36:14,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:14,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 14:36:14,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:14,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:36:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:36:14,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 14:36:14,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 14:36:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:14,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:14,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:14,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:36:14,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:14,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:36:14,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:14,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:36:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:14,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:36:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:36:14,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 14:36:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:14,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:14,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:14,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 14:36:14,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:14,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:36:14,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:14,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:36:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:14,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:36:14,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:36:14,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:36:14,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:14,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:14,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:14,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:36:14,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:14,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:36:14,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:14,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:14,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:14,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:14,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:14,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:14,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 14:36:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:14,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:14,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:14,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 14:36:14,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:14,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 14:36:14,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:14,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:14,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:36:14,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:14,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 14:36:14,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:14,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 14:36:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:14,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:14,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:14,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:36:14,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:14,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:36:14,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:14,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:14,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:14,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:14,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:14,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:15,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 14:36:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:15,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:16,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:16,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 14:36:16,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:36:16,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1100 [2020-09-25 14:36:16,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:16,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:36:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:36:16,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 14:36:16,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:16,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:36:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:16,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:16,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:16,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:36:16,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:16,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 14:36:16,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:16,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:36:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:16,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 14:36:16,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:16,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 14:36:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:16,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:16,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:16,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 14:36:16,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:16,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 14:36:16,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:16,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:16,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:36:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:36:16,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:36:16,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:16,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:36:16,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:16,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:16,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:16,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:36:16,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:16,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 14:36:16,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:16,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:16,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:36:16,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:16,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 14:36:16,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:16,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 14:36:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:16,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:16,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:17,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:17,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 14:36:17,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:36:17,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-25 14:36:17,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:17,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:36:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 14:36:17,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 14:36:17,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:17,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 14:36:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:17,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:17,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:17,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:36:17,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:17,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 14:36:17,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:17,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:36:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:17,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:36:17,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:36:17,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 14:36:17,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:17,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:17,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:17,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 14:36:17,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:17,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 14:36:17,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:17,482 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:36:17,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:36:17,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 14:36:17,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:17,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:36:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:17,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:17,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 14:36:17,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:17,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 14:36:17,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:17,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:36:17,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:36:17,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 14:36:17,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:17,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 14:36:17,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:36:17,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:36:17,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:36:17,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 14:36:17,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:36:17,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 14:36:17,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:36:17,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:36:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:36:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 14:36:17,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:36:17,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:36:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 30 proven. 37 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 14:36:17,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [860230228] [2020-09-25 14:36:17,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:36:17,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 14:36:17,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907880279] [2020-09-25 14:36:17,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 14:36:17,724 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:36:17,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 14:36:17,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-09-25 14:36:17,725 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 18 states. [2020-09-25 14:36:21,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:36:21,911 INFO L93 Difference]: Finished difference Result 772 states and 860 transitions. [2020-09-25 14:36:21,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-25 14:36:21,914 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 144 [2020-09-25 14:36:21,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:36:21,921 INFO L225 Difference]: With dead ends: 772 [2020-09-25 14:36:21,921 INFO L226 Difference]: Without dead ends: 432 [2020-09-25 14:36:21,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=628, Invalid=2794, Unknown=0, NotChecked=0, Total=3422 [2020-09-25 14:36:21,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-09-25 14:36:21,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 352. [2020-09-25 14:36:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-09-25 14:36:21,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 382 transitions. [2020-09-25 14:36:21,990 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 382 transitions. Word has length 144 [2020-09-25 14:36:21,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:36:21,991 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 382 transitions. [2020-09-25 14:36:21,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 14:36:21,991 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 382 transitions. [2020-09-25 14:36:22,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 14:36:22,001 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:36:22,001 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 14:36:22,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:36:22,002 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:36:22,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:36:22,003 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-25 14:36:22,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:36:22,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225201674] [2020-09-25 14:36:22,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:36:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:36:22,080 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:36:22,080 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:36:22,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:36:22,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:36:22 BoogieIcfgContainer [2020-09-25 14:36:22,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:36:22,121 INFO L168 Benchmark]: Toolchain (without parser) took 23135.68 ms. Allocated memory was 145.8 MB in the beginning and 431.0 MB in the end (delta: 285.2 MB). Free memory was 100.0 MB in the beginning and 385.7 MB in the end (delta: -285.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 14:36:22,123 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 14:36:22,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.89 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 99.3 MB in the beginning and 162.8 MB in the end (delta: -63.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-09-25 14:36:22,127 INFO L168 Benchmark]: Boogie Preprocessor took 85.81 ms. Allocated memory is still 202.9 MB. Free memory was 162.8 MB in the beginning and 159.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-25 14:36:22,132 INFO L168 Benchmark]: RCFGBuilder took 958.34 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 90.7 MB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2020-09-25 14:36:22,133 INFO L168 Benchmark]: TraceAbstraction took 21329.64 ms. Allocated memory was 202.9 MB in the beginning and 431.0 MB in the end (delta: 228.1 MB). Free memory was 90.0 MB in the beginning and 385.7 MB in the end (delta: -295.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 14:36:22,145 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.89 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 99.3 MB in the beginning and 162.8 MB in the end (delta: -63.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.81 ms. Allocated memory is still 202.9 MB. Free memory was 162.8 MB in the beginning and 159.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 958.34 ms. Allocated memory is still 202.9 MB. Free memory was 159.5 MB in the beginning and 90.7 MB in the end (delta: 68.8 MB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21329.64 ms. Allocated memory was 202.9 MB in the beginning and 431.0 MB in the end (delta: 228.1 MB). Free memory was 90.0 MB in the beginning and 385.7 MB in the end (delta: -295.7 MB). There was no memory consumed. 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: 21.2s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 781 SDtfs, 1868 SDslu, 602 SDs, 0 SdLazy, 3640 SolverSat, 379 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 214 GetRequests, 119 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 169 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 265897 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 250/293 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...