/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=0.1 --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 10:05:33,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:05:33,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:05:33,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:05:33,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:05:33,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:05:33,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:05:33,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:05:33,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:05:33,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:05:33,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:05:33,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:05:33,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:05:33,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:05:33,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:05:33,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:05:33,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:05:33,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:05:33,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:05:33,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:05:33,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:05:33,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:05:33,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:05:33,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:05:33,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:05:33,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:05:33,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:05:33,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:05:33,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:05:33,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:05:33,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:05:33,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:05:33,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:05:33,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:05:33,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:05:33,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:05:33,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:05:33,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:05:33,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:05:33,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:05:33,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:05:33,207 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 10:05:33,235 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:05:33,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:05:33,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:05:33,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:05:33,238 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:05:33,239 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:05:33,239 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:05:33,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:05:33,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:05:33,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:05:33,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:05:33,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:05:33,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:05:33,241 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:05:33,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:05:33,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:05:33,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:05:33,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:05:33,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:05:33,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:05:33,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:05:33,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:05:33,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:05:33,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:05:33,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:05:33,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:05:33,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:05:33,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:05:33,245 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:05:33,245 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 10:05:33,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:05:33,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:05:33,729 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:05:33,731 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:05:33,731 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:05:33,732 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 10:05:33,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41c5de325/44d7048304944b6ca525078736d7eb38/FLAG36e163c2f [2020-09-25 10:05:34,429 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:05:34,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-sets/test_mutex_double_lock.i [2020-09-25 10:05:34,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41c5de325/44d7048304944b6ca525078736d7eb38/FLAG36e163c2f [2020-09-25 10:05:34,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/41c5de325/44d7048304944b6ca525078736d7eb38 [2020-09-25 10:05:34,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:05:34,713 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:05:34,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:05:34,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:05:34,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:05:34,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:05:34" (1/1) ... [2020-09-25 10:05:34,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b30b002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:34, skipping insertion in model container [2020-09-25 10:05:34,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:05:34" (1/1) ... [2020-09-25 10:05:34,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:05:34,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:05:35,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:05:35,294 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:05:35,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:05:35,466 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:05:35,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35 WrapperNode [2020-09-25 10:05:35,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:05:35,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:05:35,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:05:35,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:05:35,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35" (1/1) ... [2020-09-25 10:05:35,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35" (1/1) ... [2020-09-25 10:05:35,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35" (1/1) ... [2020-09-25 10:05:35,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35" (1/1) ... [2020-09-25 10:05:35,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35" (1/1) ... [2020-09-25 10:05:35,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35" (1/1) ... [2020-09-25 10:05:35,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35" (1/1) ... [2020-09-25 10:05:35,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:05:35,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:05:35,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:05:35,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:05:35,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35" (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 10:05:35,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:05:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:05:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-09-25 10:05:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-09-25 10:05:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 10:05:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 10:05:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2020-09-25 10:05:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2020-09-25 10:05:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2020-09-25 10:05:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2020-09-25 10:05:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2020-09-25 10:05:35,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2020-09-25 10:05:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2020-09-25 10:05:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_empty [2020-09-25 10:05:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_set [2020-09-25 10:05:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-25 10:05:35,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_del [2020-09-25 10:05:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2020-09-25 10:05:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_empty [2020-09-25 10:05:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 10:05:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 10:05:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 10:05:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 10:05:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-09-25 10:05:35,632 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:05:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-09-25 10:05:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-09-25 10:05:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-09-25 10:05:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-09-25 10:05:35,633 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-09-25 10:05:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-09-25 10:05:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-09-25 10:05:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-09-25 10:05:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-09-25 10:05:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-09-25 10:05:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-09-25 10:05:35,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-09-25 10:05:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-09-25 10:05:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-09-25 10:05:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-09-25 10:05:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-09-25 10:05:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-09-25 10:05:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-09-25 10:05:35,635 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-09-25 10:05:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-09-25 10:05:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-09-25 10:05:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-09-25 10:05:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-09-25 10:05:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-09-25 10:05:35,636 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-09-25 10:05:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-09-25 10:05:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-09-25 10:05:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-09-25 10:05:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-09-25 10:05:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-09-25 10:05:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-09-25 10:05:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-09-25 10:05:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-09-25 10:05:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-09-25 10:05:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-09-25 10:05:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-09-25 10:05:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-09-25 10:05:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-09-25 10:05:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-09-25 10:05:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-09-25 10:05:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-09-25 10:05:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-09-25 10:05:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-09-25 10:05:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-09-25 10:05:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-09-25 10:05:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-09-25 10:05:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-09-25 10:05:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-09-25 10:05:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-09-25 10:05:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-09-25 10:05:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-09-25 10:05:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-09-25 10:05:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 10:05:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 10:05:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-09-25 10:05:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 10:05:35,641 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-09-25 10:05:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-09-25 10:05:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-09-25 10:05:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-09-25 10:05:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 10:05:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-09-25 10:05:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-09-25 10:05:35,642 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-25 10:05:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-09-25 10:05:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-09-25 10:05:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-09-25 10:05:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-09-25 10:05:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-09-25 10:05:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-09-25 10:05:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-09-25 10:05:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-09-25 10:05:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-09-25 10:05:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-09-25 10:05:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-09-25 10:05:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-09-25 10:05:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-09-25 10:05:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-09-25 10:05:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-09-25 10:05:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-09-25 10:05:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-09-25 10:05:35,645 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-09-25 10:05:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-09-25 10:05:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-09-25 10:05:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-09-25 10:05:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-09-25 10:05:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-09-25 10:05:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-09-25 10:05:35,646 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-09-25 10:05:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-09-25 10:05:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-09-25 10:05:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-09-25 10:05:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-09-25 10:05:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-09-25 10:05:35,647 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-09-25 10:05:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-09-25 10:05:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-09-25 10:05:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-09-25 10:05:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-09-25 10:05:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-09-25 10:05:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-09-25 10:05:35,648 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-09-25 10:05:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:05:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 10:05:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:05:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 10:05:35,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 10:05:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2020-09-25 10:05:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2020-09-25 10:05:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 10:05:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2020-09-25 10:05:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2020-09-25 10:05:35,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2020-09-25 10:05:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 10:05:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2020-09-25 10:05:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2020-09-25 10:05:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_empty [2020-09-25 10:05:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_set [2020-09-25 10:05:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-25 10:05:35,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_del [2020-09-25 10:05:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2020-09-25 10:05:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_empty [2020-09-25 10:05:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 10:05:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 10:05:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 10:05:35,652 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 10:05:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 10:05:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-09-25 10:05:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:05:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:05:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 10:05:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 10:05:35,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:05:36,448 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:05:36,448 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-25 10:05:36,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:05:36 BoogieIcfgContainer [2020-09-25 10:05:36,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:05:36,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:05:36,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:05:36,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:05:36,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:05:34" (1/3) ... [2020-09-25 10:05:36,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccbe440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:05:36, skipping insertion in model container [2020-09-25 10:05:36,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:05:35" (2/3) ... [2020-09-25 10:05:36,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccbe440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:05:36, skipping insertion in model container [2020-09-25 10:05:36,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:05:36" (3/3) ... [2020-09-25 10:05:36,464 INFO L109 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-09-25 10:05:36,476 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:05:36,487 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-09-25 10:05:36,509 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-25 10:05:36,564 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:05:36,564 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:05:36,564 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:05:36,565 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:05:36,565 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:05:36,565 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:05:36,565 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:05:36,565 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:05:36,593 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-09-25 10:05:36,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-09-25 10:05:36,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:05:36,602 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 10:05:36,603 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:05:36,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:05:36,610 INFO L82 PathProgramCache]: Analyzing trace with hash 899835465, now seen corresponding path program 1 times [2020-09-25 10:05:36,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:05:36,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027695146] [2020-09-25 10:05:36,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:05:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:36,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:37,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:37,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 10:05:37,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:37,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446 [2020-09-25 10:05:37,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:37,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 10:05:37,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:05:37,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:05:37,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:05:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:37,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:37,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:37,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:05:37,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:37,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 10:05:37,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:37,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:37,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:37,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:37,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:37,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:37,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:05:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:37,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:37,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:37,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:05:37,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:37,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:05:37,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:37,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:37,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:37,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:37,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:37,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:05:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:37,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:37,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:37,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:05:37,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:37,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 10:05:37,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:37,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:37,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:37,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:05:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:37,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:37,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:37,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:37,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:37,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:05:37,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:37,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:37,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:37,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:37,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 10:05:37,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:05:37,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:37,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:37,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:37,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:05:37,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:37,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 10:05:37,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:37,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:37,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:37,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:37,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:05:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:37,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:37,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:37,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:37,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:37,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:05:37,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:37,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:37,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:37,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:37,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:37,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:05:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:37,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:37,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:37,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:37,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:37,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 10:05:37,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:37,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:37,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:37,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:05:37,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:37,671 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 10:05:37,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027695146] [2020-09-25 10:05:37,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:05:37,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:05:37,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443698168] [2020-09-25 10:05:37,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:05:37,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:05:37,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:05:37,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:05:37,704 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 6 states. [2020-09-25 10:05:38,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:05:38,503 INFO L93 Difference]: Finished difference Result 367 states and 421 transitions. [2020-09-25 10:05:38,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:05:38,505 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2020-09-25 10:05:38,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:05:38,522 INFO L225 Difference]: With dead ends: 367 [2020-09-25 10:05:38,522 INFO L226 Difference]: Without dead ends: 192 [2020-09-25 10:05:38,529 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 10:05:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-09-25 10:05:38,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 172. [2020-09-25 10:05:38,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-09-25 10:05:38,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 184 transitions. [2020-09-25 10:05:38,601 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 184 transitions. Word has length 60 [2020-09-25 10:05:38,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:05:38,602 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 184 transitions. [2020-09-25 10:05:38,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:05:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 184 transitions. [2020-09-25 10:05:38,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-09-25 10:05:38,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:05:38,607 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 10:05:38,609 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:05:38,609 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:05:38,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:05:38,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1713006157, now seen corresponding path program 1 times [2020-09-25 10:05:38,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:05:38,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114083602] [2020-09-25 10:05:38,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:05:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:38,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:39,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:39,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 10:05:39,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:39,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 689 [2020-09-25 10:05:39,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:39,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:39,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:05:39,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:05:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 10:05:39,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:39,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:05:39,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:39,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:39,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:39,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:05:39,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:39,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 10:05:39,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:39,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:39,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:39,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:05:39,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:39,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:05:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:39,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:39,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:39,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:05:39,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:39,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:05:39,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:39,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:39,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:39,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:05:39,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:39,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:05:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:39,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:39,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:39,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:05:39,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:39,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 10:05:39,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:39,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:39,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:39,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:39,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 10:05:39,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:39,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:05:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:39,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:39,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:39,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:39,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:39,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:05:39,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:39,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:39,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:39,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:39,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:39,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:39,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:05:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:39,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:39,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:39,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:05:39,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:39,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 10:05:39,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:39,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:39,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 10:05:39,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:39,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:05:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:39,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:39,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:39,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:39,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:39,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:05:39,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:39,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:39,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:39,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:39,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:39,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:39,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 10:05:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:39,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:39,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:39,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 10:05:39,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:39,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 10:05:39,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:39,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:05:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 10:05:39,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 10:05:39,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:40,060 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 10:05:40,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114083602] [2020-09-25 10:05:40,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:05:40,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 10:05:40,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503271257] [2020-09-25 10:05:40,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 10:05:40,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:05:40,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 10:05:40,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-25 10:05:40,067 INFO L87 Difference]: Start difference. First operand 172 states and 184 transitions. Second operand 10 states. [2020-09-25 10:05:40,648 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2020-09-25 10:05:40,810 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-09-25 10:05:41,587 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2020-09-25 10:05:42,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:05:42,436 INFO L93 Difference]: Finished difference Result 494 states and 552 transitions. [2020-09-25 10:05:42,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 10:05:42,437 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 63 [2020-09-25 10:05:42,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:05:42,445 INFO L225 Difference]: With dead ends: 494 [2020-09-25 10:05:42,446 INFO L226 Difference]: Without dead ends: 343 [2020-09-25 10:05:42,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=178, Invalid=422, Unknown=0, NotChecked=0, Total=600 [2020-09-25 10:05:42,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-25 10:05:42,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 277. [2020-09-25 10:05:42,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 10:05:42,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 308 transitions. [2020-09-25 10:05:42,491 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 308 transitions. Word has length 63 [2020-09-25 10:05:42,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:05:42,492 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 308 transitions. [2020-09-25 10:05:42,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 10:05:42,492 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 308 transitions. [2020-09-25 10:05:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-09-25 10:05:42,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:05:42,498 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 10:05:42,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:05:42,498 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:05:42,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:05:42,498 INFO L82 PathProgramCache]: Analyzing trace with hash 2101448545, now seen corresponding path program 1 times [2020-09-25 10:05:42,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:05:42,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250392350] [2020-09-25 10:05:42,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:05:42,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:42,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:42,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-09-25 10:05:43,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:05:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-09-25 10:05:43,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 10:05:43,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:05:43,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:05:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:05:43,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 10:05:43,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:43,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:43,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:43,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:05:43,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:05:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:05:43,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:05:43,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:43,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:43,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:43,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:43,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:05:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:05:43,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 10:05:43,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:43,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:43,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:43,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:05:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:43,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:05:43,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:43,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:43,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:43,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:05:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:05:43,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:05:43,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:43,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:43,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:05:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:43,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:05:43,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:43,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:43,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:43,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 10:05:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 10:05:43,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 10:05:43,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:43,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 10:05:43,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:05:43,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:43,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:05:43,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:43,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:43,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:43,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 10:05:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:05:43,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 10:05:43,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:43,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 10:05:43,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:05:43,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:05:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:43,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-25 10:05:43,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:43,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:05:43,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-25 10:05:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 10:05:43,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:05:43,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 10:05:43,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:43,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-09-25 10:05:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:05:43,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:43,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:43,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:43,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:43,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:43,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:43,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:05:44,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:44,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:44,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:44,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:44,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:44,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 10:05:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:44,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:44,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:44,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 10:05:44,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:44,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 10:05:44,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:44,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 10:05:44,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 10:05:44,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:44,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:05:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:44,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:44,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:44,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:44,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:44,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 10:05:44,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:44,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:05:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:44,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 10:05:44,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:44,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 10:05:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:44,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:44,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:44,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:44,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:44,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 10:05:44,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:44,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:44,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:44,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:05:44,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:44,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:44,211 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 10:05:44,211 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250392350] [2020-09-25 10:05:44,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:05:44,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 10:05:44,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167292907] [2020-09-25 10:05:44,215 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:05:44,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:05:44,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:05:44,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:05:44,217 INFO L87 Difference]: Start difference. First operand 277 states and 308 transitions. Second operand 7 states. [2020-09-25 10:05:45,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:05:45,123 INFO L93 Difference]: Finished difference Result 511 states and 568 transitions. [2020-09-25 10:05:45,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:05:45,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 138 [2020-09-25 10:05:45,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:05:45,132 INFO L225 Difference]: With dead ends: 511 [2020-09-25 10:05:45,133 INFO L226 Difference]: Without dead ends: 286 [2020-09-25 10:05:45,136 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 10:05:45,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-25 10:05:45,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-25 10:05:45,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-25 10:05:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 314 transitions. [2020-09-25 10:05:45,202 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 314 transitions. Word has length 138 [2020-09-25 10:05:45,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:05:45,206 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 314 transitions. [2020-09-25 10:05:45,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:05:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 314 transitions. [2020-09-25 10:05:45,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-09-25 10:05:45,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:05:45,222 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 10:05:45,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:05:45,222 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:05:45,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:05:45,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1665265261, now seen corresponding path program 1 times [2020-09-25 10:05:45,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:05:45,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1246231465] [2020-09-25 10:05:45,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:05:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:45,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:45,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:45,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:50,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:50,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-09-25 10:05:50,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:05:50,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 10:05:50,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:50,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 10:05:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 10:05:50,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 10:05:50,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:50,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:05:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:50,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:50,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:50,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 10:05:50,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:50,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 10:05:50,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:50,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:50,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:50,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:50,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:05:50,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:50,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:05:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:50,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:50,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:50,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:05:50,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:50,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:05:50,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:50,401 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:50,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:50,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:50,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 10:05:50,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:50,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 10:05:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:50,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:50,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:50,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:05:50,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:50,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:05:50,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:50,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:50,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 10:05:50,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:50,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:05:50,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:50,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:50,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:50,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:50,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:50,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:05:50,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:50,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:50,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:50,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:50,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:50,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:05:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:50,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:50,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:50,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 10:05:50,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:50,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:05:50,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:50,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:50,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:50,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 10:05:50,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:50,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:05:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:50,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:50,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:50,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 10:05:50,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:50,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:05:50,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:50,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:50,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:50,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:50,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-25 10:05:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:50,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:50,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:51,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:51,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 10:05:51,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:05:51,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 951 [2020-09-25 10:05:51,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:51,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 10:05:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:05:51,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-09-25 10:05:51,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:51,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:51,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:51,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:51,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:51,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:51,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:51,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 10:05:51,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:51,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:51,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:05:51,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:51,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 10:05:51,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:05:51,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 10:05:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:51,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:51,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:51,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 10:05:51,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:51,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 10:05:51,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:51,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 10:05:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:05:51,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:05:51,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:51,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:05:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:51,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:51,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:51,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 10:05:51,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:51,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 10:05:51,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:51,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:51,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:05:51,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:51,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 10:05:51,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:52,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 10:05:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:52,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:52,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:52,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:52,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 10:05:52,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:05:52,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 516 [2020-09-25 10:05:52,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:52,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 10:05:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 10:05:52,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 10:05:52,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:52,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 10:05:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:52,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:52,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:52,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:52,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:52,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 10:05:52,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:52,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:52,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:05:52,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:52,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 10:05:52,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:52,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-25 10:05:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:52,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:52,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:52,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 10:05:52,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:52,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 10:05:52,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:52,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 10:05:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 10:05:52,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:05:52,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:52,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 10:05:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:52,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:53,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:53,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 10:05:53,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:53,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 10:05:53,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:53,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:53,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:05:53,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:05:53,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 10:05:53,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:05:53,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 10:05:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:05:53,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:05:53,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:05:53,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 10:05:53,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:05:53,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 10:05:53,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:05:53,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:05:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:05:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:05:53,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:05:53,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:05:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 33 proven. 34 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-25 10:05:53,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1246231465] [2020-09-25 10:05:53,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:05:53,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 10:05:53,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388751326] [2020-09-25 10:05:53,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 10:05:53,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:05:53,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 10:05:53,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:05:53,153 INFO L87 Difference]: Start difference. First operand 283 states and 314 transitions. Second operand 18 states. [2020-09-25 10:05:57,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:05:57,210 INFO L93 Difference]: Finished difference Result 772 states and 860 transitions. [2020-09-25 10:05:57,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-25 10:05:57,213 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 144 [2020-09-25 10:05:57,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:05:57,216 INFO L225 Difference]: With dead ends: 772 [2020-09-25 10:05:57,216 INFO L226 Difference]: Without dead ends: 432 [2020-09-25 10:05:57,220 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 891 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=628, Invalid=2794, Unknown=0, NotChecked=0, Total=3422 [2020-09-25 10:05:57,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-09-25 10:05:57,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 352. [2020-09-25 10:05:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-09-25 10:05:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 382 transitions. [2020-09-25 10:05:57,247 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 382 transitions. Word has length 144 [2020-09-25 10:05:57,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:05:57,247 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 382 transitions. [2020-09-25 10:05:57,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 10:05:57,247 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 382 transitions. [2020-09-25 10:05:57,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-09-25 10:05:57,249 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:05:57,249 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 10:05:57,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:05:57,250 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mutex_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, mutex_lockErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:05:57,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:05:57,250 INFO L82 PathProgramCache]: Analyzing trace with hash 203347141, now seen corresponding path program 1 times [2020-09-25 10:05:57,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:05:57,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [865216318] [2020-09-25 10:05:57,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:05:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:05:57,301 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:05:57,302 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:05:57,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:05:57,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:05:57 BoogieIcfgContainer [2020-09-25 10:05:57,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:05:57,334 INFO L168 Benchmark]: Toolchain (without parser) took 22626.13 ms. Allocated memory was 146.3 MB in the beginning and 474.0 MB in the end (delta: 327.7 MB). Free memory was 99.6 MB in the beginning and 308.4 MB in the end (delta: -208.8 MB). Peak memory consumption was 118.9 MB. Max. memory is 7.1 GB. [2020-09-25 10:05:57,335 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-09-25 10:05:57,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 753.55 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.0 MB in the beginning and 165.5 MB in the end (delta: -66.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-09-25 10:05:57,337 INFO L168 Benchmark]: Boogie Preprocessor took 82.03 ms. Allocated memory is still 203.4 MB. Free memory was 165.5 MB in the beginning and 162.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:05:57,338 INFO L168 Benchmark]: RCFGBuilder took 904.17 ms. Allocated memory is still 203.4 MB. Free memory was 162.2 MB in the beginning and 93.5 MB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. [2020-09-25 10:05:57,339 INFO L168 Benchmark]: TraceAbstraction took 20876.83 ms. Allocated memory was 203.4 MB in the beginning and 474.0 MB in the end (delta: 270.5 MB). Free memory was 92.9 MB in the beginning and 308.4 MB in the end (delta: -215.6 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. [2020-09-25 10:05:57,342 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 753.55 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 99.0 MB in the beginning and 165.5 MB in the end (delta: -66.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.03 ms. Allocated memory is still 203.4 MB. Free memory was 165.5 MB in the beginning and 162.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 904.17 ms. Allocated memory is still 203.4 MB. Free memory was 162.2 MB in the beginning and 93.5 MB in the end (delta: 68.6 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20876.83 ms. Allocated memory was 203.4 MB in the beginning and 474.0 MB in the end (delta: 270.5 MB). Free memory was 92.9 MB in the beginning and 308.4 MB in the end (delta: -215.6 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 658]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L654] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; [L681] CALL foo() [L670] FCALL ldv_initialize() [L671] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L671] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L671] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L672] CALL, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L672] RET, EXPR ldv_successful_malloc(sizeof(struct mutex)) [L672] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L673] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L659] CALL ldv_set_add(m, &mutexes) [L625] CALL, EXPR ldv_is_in_set(new, s) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND FALSE !(&m->list != (s)) [L649] return 0; [L625] RET, EXPR ldv_is_in_set(new, s) [L625] COND TRUE !ldv_is_in_set(new, s) [L626] struct ldv_list_element *le; [L627] CALL, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L565] void *ptr = malloc(size); [L566] CALL assume_abort_if_not(ptr!=0) [L554] COND FALSE !(!cond) [L566] RET assume_abort_if_not(ptr!=0) [L567] return ptr; [L627] RET, EXPR ldv_successful_malloc(sizeof(struct ldv_list_element)) [L627] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L628] le->e = new [L629] CALL ldv_list_add(&le->list, s) [L597] EXPR head->next [L597] CALL __ldv_list_add(new, head, head->next) [L585] next->prev = new [L586] new->next = next [L587] new->prev = prev [L588] prev->next = new [L597] RET __ldv_list_add(new, head, head->next) [L629] RET ldv_list_add(&le->list, s) [L659] RET ldv_set_add(m, &mutexes) [L673] RET mutex_lock(m1) [L674] CALL mutex_lock(m1) [L658] CALL ldv_is_in_set(m, &mutexes) [L643] struct ldv_list_element *m; [L644] EXPR (s)->next [L644] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L644] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) [L644] COND TRUE &m->list != (s) [L645] EXPR m->e [L645] COND TRUE m->e == e [L646] return 1; [L658] RET ldv_is_in_set(m, &mutexes) [L658] COND TRUE ldv_is_in_set(m, &mutexes) [L658] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 25 procedures, 215 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.7s, 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 169 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 401 ConstructedInterpolants, 0 QuantifiedInterpolants, 258318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 253/293 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...