/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=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:07:27,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:07:27,687 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:07:27,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:07:27,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:07:27,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:07:27,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:07:27,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:07:27,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:07:27,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:07:27,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:07:27,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:07:27,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:07:27,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:07:27,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:07:27,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:07:27,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:07:27,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:07:27,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:07:27,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:07:27,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:07:27,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:07:27,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:07:27,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:07:27,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:07:27,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:07:27,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:07:27,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:07:27,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:07:27,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:07:27,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:07:27,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:07:27,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:07:27,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:07:27,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:07:27,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:07:27,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:07:27,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:07:27,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:07:27,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:07:27,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:07:27,802 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 13:07:27,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:07:27,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:07:27,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:07:27,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:07:27,853 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:07:27,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:07:27,853 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:07:27,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:07:27,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:07:27,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:07:27,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:07:27,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:07:27,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:07:27,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:07:27,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:07:27,856 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:07:27,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:07:27,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:07:27,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:07:27,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:07:27,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:07:27,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:07:27,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:07:27,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:07:27,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:07:27,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:07:27,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:07:27,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:07:27,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:07:27,859 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 13:07:28,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:07:28,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:07:28,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:07:28,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:07:28,318 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:07:28,319 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c [2020-09-25 13:07:28,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23ed6739a/2f8ce4f1fc5241d38ab9f08aa45e8987/FLAG579c6a211 [2020-09-25 13:07:28,921 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:07:28,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c [2020-09-25 13:07:28,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23ed6739a/2f8ce4f1fc5241d38ab9f08aa45e8987/FLAG579c6a211 [2020-09-25 13:07:29,215 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/23ed6739a/2f8ce4f1fc5241d38ab9f08aa45e8987 [2020-09-25 13:07:29,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:07:29,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:07:29,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:07:29,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:07:29,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:07:29,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:07:29" (1/1) ... [2020-09-25 13:07:29,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba9309b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29, skipping insertion in model container [2020-09-25 13:07:29,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:07:29" (1/1) ... [2020-09-25 13:07:29,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:07:29,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:07:29,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:07:29,720 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:07:29,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:07:29,967 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:07:29,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29 WrapperNode [2020-09-25 13:07:29,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:07:29,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:07:29,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:07:29,969 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:07:29,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29" (1/1) ... [2020-09-25 13:07:29,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29" (1/1) ... [2020-09-25 13:07:30,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29" (1/1) ... [2020-09-25 13:07:30,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29" (1/1) ... [2020-09-25 13:07:30,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29" (1/1) ... [2020-09-25 13:07:30,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29" (1/1) ... [2020-09-25 13:07:30,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29" (1/1) ... [2020-09-25 13:07:30,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:07:30,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:07:30,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:07:30,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:07:30,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29" (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 13:07:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:07:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:07:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 13:07:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 13:07:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 13:07:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 13:07:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 13:07:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 13:07:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 13:07:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 13:07:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 13:07:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 13:07:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 13:07:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 13:07:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 13:07:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 13:07:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 13:07:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 13:07:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 13:07:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 13:07:30,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 13:07:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 13:07:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 13:07:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 13:07:30,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 13:07:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 13:07:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 13:07:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 13:07:30,179 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 13:07:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 13:07:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 13:07:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 13:07:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 13:07:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 13:07:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 13:07:30,180 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 13:07:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:07:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:07:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:07:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 13:07:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 13:07:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 13:07:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 13:07:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 13:07:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 13:07:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 13:07:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 13:07:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 13:07:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 13:07:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 13:07:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 13:07:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 13:07:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 13:07:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 13:07:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 13:07:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 13:07:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 13:07:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 13:07:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 13:07:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 13:07:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 13:07:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 13:07:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 13:07:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 13:07:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 13:07:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 13:07:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 13:07:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 13:07:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 13:07:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 13:07:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 13:07:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 13:07:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 13:07:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 13:07:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 13:07:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 13:07:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 13:07:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 13:07:30,188 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 13:07:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 13:07:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 13:07:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 13:07:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 13:07:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 13:07:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:07:30,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:07:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 13:07:30,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:07:31,255 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:07:31,255 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 13:07:31,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:07:31 BoogieIcfgContainer [2020-09-25 13:07:31,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:07:31,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:07:31,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:07:31,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:07:31,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:07:29" (1/3) ... [2020-09-25 13:07:31,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2c6f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:07:31, skipping insertion in model container [2020-09-25 13:07:31,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:07:29" (2/3) ... [2020-09-25 13:07:31,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2c6f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:07:31, skipping insertion in model container [2020-09-25 13:07:31,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:07:31" (3/3) ... [2020-09-25 13:07:31,271 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product11.cil.c [2020-09-25 13:07:31,282 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:07:31,293 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:07:31,315 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:07:31,347 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:07:31,347 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:07:31,347 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:07:31,347 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:07:31,347 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:07:31,347 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:07:31,348 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:07:31,348 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:07:31,376 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-25 13:07:31,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 13:07:31,393 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:07:31,394 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:31,394 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:07:31,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:07:31,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1802056066, now seen corresponding path program 1 times [2020-09-25 13:07:31,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:07:31,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [895383950] [2020-09-25 13:07:31,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:07:31,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:31,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:32,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:33,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:34,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:34,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:36,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:36,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:36,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 13:07:36,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:07:36,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 13:07:36,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:36,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:07:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 13:07:36,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 13:07:36,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:07:37,274 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:07:37,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:07:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:37,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:37,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:37,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:07:37,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:37,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 244 [2020-09-25 13:07:37,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:37,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:37,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 13:07:37,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:37,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:07:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:37,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:37,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:37,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:37,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:37,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:37,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:37,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:37,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:37,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:37,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:37,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:07:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:37,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:37,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:37,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:37,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:37,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:37,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:37,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:37,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:37,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:37,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:07:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:37,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:37,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:37,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:37,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:37,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:07:37,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:37,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:37,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:37,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:37,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:07:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:37,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:37,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:37,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:37,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:37,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:37,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:37,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:37,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:37,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:37,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:37,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:37,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:07:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:37,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:37,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:37,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:07:37,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:37,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:37,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:37,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:37,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:37,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:07:37,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:37,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 13:07:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:37,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:37,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:37,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:37,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:37,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:37,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:37,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:07:37,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:37,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:37,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 13:07:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:37,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:37,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:37,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:37,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:37,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:37,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:37,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:37,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:37,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:07:37,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:37,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:37,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:07:37,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [895383950] [2020-09-25 13:07:37,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:07:37,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:07:37,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328920098] [2020-09-25 13:07:37,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:07:37,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:07:37,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:07:37,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:07:37,786 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 5 states. [2020-09-25 13:07:38,454 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:07:39,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:07:39,830 INFO L93 Difference]: Finished difference Result 489 states and 595 transitions. [2020-09-25 13:07:39,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:07:39,833 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-25 13:07:39,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:07:39,854 INFO L225 Difference]: With dead ends: 489 [2020-09-25 13:07:39,855 INFO L226 Difference]: Without dead ends: 354 [2020-09-25 13:07:39,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:07:39,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-09-25 13:07:39,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 289. [2020-09-25 13:07:39,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-09-25 13:07:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 318 transitions. [2020-09-25 13:07:39,981 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 318 transitions. Word has length 148 [2020-09-25 13:07:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:07:39,982 INFO L479 AbstractCegarLoop]: Abstraction has 289 states and 318 transitions. [2020-09-25 13:07:39,982 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:07:39,982 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 318 transitions. [2020-09-25 13:07:39,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-25 13:07:39,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:07:39,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:39,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:07:39,988 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:07:39,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:07:39,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1973919625, now seen corresponding path program 1 times [2020-09-25 13:07:39,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:07:39,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1069048932] [2020-09-25 13:07:39,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:07:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:40,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:40,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:40,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:41,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:42,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:45,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:45,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 13:07:45,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:07:45,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 13:07:45,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:45,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:45,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:07:45,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 13:07:45,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 13:07:45,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:45,448 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:07:45,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:07:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:45,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:45,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:45,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:07:45,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:45,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-25 13:07:45,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:45,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:45,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:45,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:45,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 13:07:45,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:45,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:07:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:45,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:45,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:45,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:45,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:45,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:45,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:45,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:45,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:45,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:45,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:07:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:45,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:45,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:45,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:45,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:45,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:45,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:45,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:45,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:45,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:45,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:45,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:07:45,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:45,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:45,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:45,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:45,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:45,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:07:45,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:45,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:45,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:45,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:45,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:07:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:45,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:45,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:45,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:45,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:45,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:45,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:45,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:45,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:45,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:45,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:45,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:07:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:45,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:45,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:45,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:07:45,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:45,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:45,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:45,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:45,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:07:45,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:45,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 13:07:45,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:45,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:45,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:45,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:45,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:45,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 13:07:45,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:45,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:45,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:45,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:45,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 13:07:45,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 13:07:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:45,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:45,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:45,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:45,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:45,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:07:45,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:45,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:07:45,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:45,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:45,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:07:46,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 13:07:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:46,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:46,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:46,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:46,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:46,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:46,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:46,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:46,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:46,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:07:46,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:46,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:07:46,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1069048932] [2020-09-25 13:07:46,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:07:46,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 13:07:46,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593822097] [2020-09-25 13:07:46,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:07:46,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:07:46,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:07:46,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:07:46,069 INFO L87 Difference]: Start difference. First operand 289 states and 318 transitions. Second operand 9 states. [2020-09-25 13:07:46,619 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:07:47,659 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:07:47,998 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 13:07:48,368 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:07:48,746 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 13:07:49,061 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:07:49,628 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:07:49,959 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:07:50,292 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:07:50,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:07:50,825 INFO L93 Difference]: Finished difference Result 688 states and 825 transitions. [2020-09-25 13:07:50,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:07:50,826 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-09-25 13:07:50,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:07:50,833 INFO L225 Difference]: With dead ends: 688 [2020-09-25 13:07:50,834 INFO L226 Difference]: Without dead ends: 493 [2020-09-25 13:07:50,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-25 13:07:50,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-09-25 13:07:50,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 410. [2020-09-25 13:07:50,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-25 13:07:50,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 457 transitions. [2020-09-25 13:07:50,939 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 457 transitions. Word has length 152 [2020-09-25 13:07:50,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:07:50,939 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 457 transitions. [2020-09-25 13:07:50,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:07:50,939 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 457 transitions. [2020-09-25 13:07:50,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 13:07:50,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:07:50,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:50,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:07:50,944 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:07:50,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:07:50,944 INFO L82 PathProgramCache]: Analyzing trace with hash -262479288, now seen corresponding path program 1 times [2020-09-25 13:07:50,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:07:50,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620768656] [2020-09-25 13:07:50,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:07:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:51,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:51,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:52,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 13:07:56,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:07:56,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-09-25 13:07:56,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:07:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 13:07:56,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 13:07:56,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:07:56,398 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:07:56,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:07:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:07:56,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 13:07:56,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:56,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:56,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:07:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:56,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:07:56,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:56,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:56,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:07:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:56,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:07:56,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:56,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:56,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:56,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:07:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:56,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:56,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:56,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:56,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:07:56,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:07:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:56,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:07:56,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,604 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:07:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:07:56,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:56,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:07:56,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:07:56,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:56,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:56,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 13:07:56,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:56,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 13:07:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:07:56,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:07:56,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:07:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:56,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 13:07:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:07:56,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:07:56,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:56,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:07:56,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:56,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 13:07:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:56,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:56,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:56,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:56,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 13:07:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:56,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:56,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:07:56,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:07:56,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:07:56,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:07:56,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:07:56,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:07:56,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:07:56,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:07:56,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:07:56,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:07:56,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:07:56,767 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620768656] [2020-09-25 13:07:56,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:07:56,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 13:07:56,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457271750] [2020-09-25 13:07:56,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:07:56,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:07:56,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:07:56,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:07:56,771 INFO L87 Difference]: Start difference. First operand 410 states and 457 transitions. Second operand 6 states. [2020-09-25 13:07:57,313 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:07:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:07:59,028 INFO L93 Difference]: Finished difference Result 918 states and 1129 transitions. [2020-09-25 13:07:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 13:07:59,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-25 13:07:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:07:59,037 INFO L225 Difference]: With dead ends: 918 [2020-09-25 13:07:59,037 INFO L226 Difference]: Without dead ends: 915 [2020-09-25 13:07:59,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:07:59,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2020-09-25 13:07:59,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 591. [2020-09-25 13:07:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2020-09-25 13:07:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 678 transitions. [2020-09-25 13:07:59,135 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 678 transitions. Word has length 166 [2020-09-25 13:07:59,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:07:59,136 INFO L479 AbstractCegarLoop]: Abstraction has 591 states and 678 transitions. [2020-09-25 13:07:59,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:07:59,137 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 678 transitions. [2020-09-25 13:07:59,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2020-09-25 13:07:59,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:07:59,142 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:59,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:07:59,142 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:07:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:07:59,143 INFO L82 PathProgramCache]: Analyzing trace with hash 821952238, now seen corresponding path program 1 times [2020-09-25 13:07:59,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:07:59,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665910289] [2020-09-25 13:07:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:07:59,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:07:59,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:59,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:59,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:59,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:07:59,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:01,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:03,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:04,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:04,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 289 [2020-09-25 13:08:04,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:08:04,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 13:08:04,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:04,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:04,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 13:08:04,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 13:08:04,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-25 13:08:04,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:04,564 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 13:08:04,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:08:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:04,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:04,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:04,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 13:08:04,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:04,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 251 [2020-09-25 13:08:04,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:04,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:04,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:08:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 13:08:04,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:04,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 13:08:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:04,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:04,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:04,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:08:04,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:04,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:08:04,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:04,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:04,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:08:04,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:04,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:08:04,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:04,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 13:08:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:04,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:04,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:04,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:08:04,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:04,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:08:04,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:04,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:04,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:08:04,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:04,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:08:04,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:04,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 13:08:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:04,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:04,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:04,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:08:04,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:04,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:08:04,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:04,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:04,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:08:04,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:04,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:08:04,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:04,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 13:08:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:04,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:04,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:04,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:08:04,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:04,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:08:04,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:04,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:04,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:08:04,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:04,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:08:04,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:04,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 13:08:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:04,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:04,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:04,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 13:08:04,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:08:04,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:04,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:04,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:08:04,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:04,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 13:08:04,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:04,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 13:08:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:04,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:04,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:04,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 13:08:04,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:04,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:08:04,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:04,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:08:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:04,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:08:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 13:08:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 13:08:05,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:08:05,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 13:08:05,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:08:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:05,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 13:08:05,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:08:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:08:05,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:08:05,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:08:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:05,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:08:05,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:08:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-25 13:08:05,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:08:05,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:08:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:08:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:08:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:08:05,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:08:05,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:08:05,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:05,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:08:05,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 13:08:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 13:08:05,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:08:05,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 13:08:05,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:08:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:08:05,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 13:08:05,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:08:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:08:05,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:08:05,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:08:05,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:05,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 13:08:05,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:08:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 13:08:05,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 13:08:05,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:08:05,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 13:08:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 13:08:05,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 13:08:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:08:05,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:08:05,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:08:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:08:05,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 13:08:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:08:05,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:08:05,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:08:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:08:05,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:08:05,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 13:08:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:08:05,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:08:05,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:08:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 13:08:05,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:08:05,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-25 13:08:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:08:05,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:08:05,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:08:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:08:05,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:08:05,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-25 13:08:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:08:05,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:08:05,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:08:05,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:08:05,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:08:05,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:08:05,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:08:05,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:08:05,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:08:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 13:08:05,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:08:05,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:08:05,579 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-25 13:08:05,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665910289] [2020-09-25 13:08:05,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:08:05,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 13:08:05,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945350656] [2020-09-25 13:08:05,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 13:08:05,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:08:05,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 13:08:05,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 13:08:05,584 INFO L87 Difference]: Start difference. First operand 591 states and 678 transitions. Second operand 12 states. [2020-09-25 13:08:06,304 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 13:08:07,464 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:08:07,755 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:08:08,355 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-25 13:08:08,964 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 197 [2020-09-25 13:08:09,545 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-25 13:08:09,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:08:09,929 INFO L93 Difference]: Finished difference Result 967 states and 1177 transitions. [2020-09-25 13:08:09,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 13:08:09,929 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 234 [2020-09-25 13:08:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:08:09,930 INFO L225 Difference]: With dead ends: 967 [2020-09-25 13:08:09,930 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 13:08:09,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2020-09-25 13:08:09,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 13:08:09,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 13:08:09,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 13:08:09,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 13:08:09,935 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2020-09-25 13:08:09,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:08:09,936 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 13:08:09,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 13:08:09,936 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 13:08:09,936 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 13:08:09,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:08:09,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 13:08:10,157 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:08:10,333 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:08:10,505 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 13:08:10,679 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 13:08:10,843 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:08:10,962 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 13 [2020-09-25 13:08:11,151 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:08:11,326 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:08:11,532 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 13:08:11,692 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 13:08:11,863 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 13:08:12,175 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-09-25 13:08:12,518 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 13:08:12,952 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 203 [2020-09-25 13:08:13,475 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 199 [2020-09-25 13:08:13,972 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 199 [2020-09-25 13:08:14,440 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-09-25 13:08:15,096 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-09-25 13:08:15,449 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-25 13:08:15,908 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 193 [2020-09-25 13:08:16,274 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 194 [2020-09-25 13:08:16,737 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 194