/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=BIGGEST --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_spec4_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:14:39,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:14:39,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:14:39,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:14:39,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:14:39,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:14:39,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:14:39,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:14:39,672 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:14:39,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:14:39,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:14:39,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:14:39,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:14:39,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:14:39,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:14:39,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:14:39,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:14:39,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:14:39,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:14:39,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:14:39,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:14:39,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:14:39,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:14:39,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:14:39,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:14:39,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:14:39,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:14:39,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:14:39,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:14:39,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:14:39,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:14:39,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:14:39,702 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:14:39,703 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:14:39,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:14:39,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:14:39,706 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:14:39,706 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:14:39,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:14:39,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:14:39,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:14:39,709 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 [2020-09-24 20:14:39,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:14:39,752 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:14:39,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:14:39,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:14:39,755 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:14:39,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:14:39,756 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:14:39,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:14:39,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:14:39,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:14:39,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:14:39,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:14:39,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:14:39,758 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:14:39,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:14:39,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:14:39,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:14:39,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:14:39,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:14:39,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:14:39,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:14:39,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:14:39,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:14:39,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:14:39,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:14:39,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:14:39,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:14:39,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:14:39,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:14:39,762 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:14:40,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:14:40,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:14:40,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:14:40,242 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:14:40,242 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:14:40,243 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product07.cil.c [2020-09-24 20:14:40,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c583a1e33/acfd090c3e7944dead04326c357e3960/FLAGd4a3e4c26 [2020-09-24 20:14:40,854 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:14:40,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product07.cil.c [2020-09-24 20:14:40,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c583a1e33/acfd090c3e7944dead04326c357e3960/FLAGd4a3e4c26 [2020-09-24 20:14:41,146 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c583a1e33/acfd090c3e7944dead04326c357e3960 [2020-09-24 20:14:41,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:14:41,163 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:14:41,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:14:41,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:14:41,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:14:41,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:14:41" (1/1) ... [2020-09-24 20:14:41,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6e25e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41, skipping insertion in model container [2020-09-24 20:14:41,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:14:41" (1/1) ... [2020-09-24 20:14:41,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:14:41,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:14:41,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:14:41,801 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:14:41,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:14:41,916 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:14:41,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41 WrapperNode [2020-09-24 20:14:41,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:14:41,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:14:41,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:14:41,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:14:41,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41" (1/1) ... [2020-09-24 20:14:41,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41" (1/1) ... [2020-09-24 20:14:41,956 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41" (1/1) ... [2020-09-24 20:14:41,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41" (1/1) ... [2020-09-24 20:14:41,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41" (1/1) ... [2020-09-24 20:14:42,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41" (1/1) ... [2020-09-24 20:14:42,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41" (1/1) ... [2020-09-24 20:14:42,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:14:42,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:14:42,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:14:42,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:14:42,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41" (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 [2020-09-24 20:14:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:14:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:14:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:14:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:14:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:14:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:14:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:14:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:14:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:14:42,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:14:42,101 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:14:42,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:14:42,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:14:42,101 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:14:42,102 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:14:42,102 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:14:42,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:14:42,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:14:42,103 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:14:42,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:14:42,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:14:42,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:14:42,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:14:42,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:14:42,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:14:42,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:14:42,104 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:14:42,104 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:14:42,104 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:14:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:14:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:14:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:14:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:14:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:14:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:14:42,106 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:14:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:14:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:14:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:14:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:14:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:14:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:14:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:14:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:14:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:14:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:14:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:14:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:14:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:14:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:14:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:14:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:14:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:14:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:14:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:14:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:14:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:14:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:14:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:14:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:14:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 20:14:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:14:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:14:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:14:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:14:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:14:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:14:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:14:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:14:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:14:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:14:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:14:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:14:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:14:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:14:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:14:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:14:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:14:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:14:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:14:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:14:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:14:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:14:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:14:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:14:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:14:43,147 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:14:43,147 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:14:43,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:14:43 BoogieIcfgContainer [2020-09-24 20:14:43,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:14:43,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:14:43,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:14:43,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:14:43,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:14:41" (1/3) ... [2020-09-24 20:14:43,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9035ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:14:43, skipping insertion in model container [2020-09-24 20:14:43,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:14:41" (2/3) ... [2020-09-24 20:14:43,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9035ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:14:43, skipping insertion in model container [2020-09-24 20:14:43,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:14:43" (3/3) ... [2020-09-24 20:14:43,164 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product07.cil.c [2020-09-24 20:14:43,173 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:14:43,182 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:14:43,205 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:14:43,238 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:14:43,238 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:14:43,238 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:14:43,238 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:14:43,238 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:14:43,239 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:14:43,239 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:14:43,239 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:14:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-24 20:14:43,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:14:43,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:43,286 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] [2020-09-24 20:14:43,286 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:43,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:43,294 INFO L82 PathProgramCache]: Analyzing trace with hash 915241318, now seen corresponding path program 1 times [2020-09-24 20:14:43,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:43,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778634373] [2020-09-24 20:14:43,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:43,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:44,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:45,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:46,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:48,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:48,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:14:48,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:14:48,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-24 20:14:48,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:48,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:14:48,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:14:48,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 20:14:48,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:14:49,358 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:14:49,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:14:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:49,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:49,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:14:49,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:49,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-24 20:14:49,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:49,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:49,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:14:49,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:14:49,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:14:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:49,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:49,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:49,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:49,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:49,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:14:49,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:49,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:49,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:49,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:14:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:49,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:49,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:49,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:49,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:49,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:14:49,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:49,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:49,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:14:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:49,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:49,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:49,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:49,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:49,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:14:49,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:49,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:49,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:49,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:49,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:14:49,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:14:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:14:50,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:14:50,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:14:50,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:14:50,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:14:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:50,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:14:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:14:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:14:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:14:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:14:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:50,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:50,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:14:50,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:14:50,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:14:50,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:14:50,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:14:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:14:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:14:50,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:14:50,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:14:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:14:50,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778634373] [2020-09-24 20:14:50,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:14:50,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:14:50,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693929508] [2020-09-24 20:14:50,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:14:50,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:14:50,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:14:50,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:14:50,183 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 8 states. [2020-09-24 20:14:50,755 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:51,638 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:51,955 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:14:52,385 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:52,748 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:14:53,066 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:14:53,389 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:53,709 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:14:55,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:14:55,244 INFO L93 Difference]: Finished difference Result 538 states and 669 transitions. [2020-09-24 20:14:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:14:55,246 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:14:55,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:14:55,268 INFO L225 Difference]: With dead ends: 538 [2020-09-24 20:14:55,268 INFO L226 Difference]: Without dead ends: 374 [2020-09-24 20:14:55,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:14:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2020-09-24 20:14:55,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 330. [2020-09-24 20:14:55,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-24 20:14:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 374 transitions. [2020-09-24 20:14:55,400 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 374 transitions. Word has length 142 [2020-09-24 20:14:55,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:14:55,401 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 374 transitions. [2020-09-24 20:14:55,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:14:55,402 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 374 transitions. [2020-09-24 20:14:55,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:14:55,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:14:55,408 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] [2020-09-24 20:14:55,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:14:55,408 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:14:55,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:14:55,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1434938903, now seen corresponding path program 1 times [2020-09-24 20:14:55,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:14:55,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179663568] [2020-09-24 20:14:55,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:14:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:14:55,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:55,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:14:56,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:00,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:00,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:15:00,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:15:00,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 20:15:00,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:15:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:15:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 20:15:00,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:00,822 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:15:00,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:15:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:00,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:01,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:01,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:15:01,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:01,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-24 20:15:01,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:01,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:01,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:15:01,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:01,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:15:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:01,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:01,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:01,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:15:01,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:01,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:15:01,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:01,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:15:01,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:01,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:15:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:01,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:01,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:01,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:15:01,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:01,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:15:01,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:01,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:15:01,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:01,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:15:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:01,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:01,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:01,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:01,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:01,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:15:01,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:01,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:01,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:01,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:15:01,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:01,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:15:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:01,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:01,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:01,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:15:01,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:01,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:15:01,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:01,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:15:01,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:01,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-24 20:15:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:01,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:01,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:01,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:15:01,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:01,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:15:01,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:01,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:15:01,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:15:01,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:15:01,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:01,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 20:15:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:01,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:01,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:01,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:01,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:01,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:15:01,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:15:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:15:01,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:15:01,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:01,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 20:15:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:01,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:01,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:01,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:01,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:01,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:15:01,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:15:01,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:15:01,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:15:01,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:15:01,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179663568] [2020-09-24 20:15:01,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:15:01,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 20:15:01,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839151448] [2020-09-24 20:15:01,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 20:15:01,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:15:01,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 20:15:01,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 20:15:01,231 INFO L87 Difference]: Start difference. First operand 330 states and 374 transitions. Second operand 5 states. [2020-09-24 20:15:01,805 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:15:02,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:15:02,539 INFO L93 Difference]: Finished difference Result 509 states and 609 transitions. [2020-09-24 20:15:02,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 20:15:02,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 20:15:02,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:15:02,545 INFO L225 Difference]: With dead ends: 509 [2020-09-24 20:15:02,546 INFO L226 Difference]: Without dead ends: 278 [2020-09-24 20:15:02,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:15:02,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-09-24 20:15:02,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 256. [2020-09-24 20:15:02,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-09-24 20:15:02,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 274 transitions. [2020-09-24 20:15:02,586 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 274 transitions. Word has length 148 [2020-09-24 20:15:02,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:15:02,586 INFO L479 AbstractCegarLoop]: Abstraction has 256 states and 274 transitions. [2020-09-24 20:15:02,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 20:15:02,587 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 274 transitions. [2020-09-24 20:15:02,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 20:15:02,589 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:15:02,589 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] [2020-09-24 20:15:02,590 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:15:02,590 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:15:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:15:02,590 INFO L82 PathProgramCache]: Analyzing trace with hash -266210603, now seen corresponding path program 1 times [2020-09-24 20:15:02,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:15:02,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798180402] [2020-09-24 20:15:02,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:15:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:02,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:03,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:04,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:07,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:07,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 20:15:07,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:15:07,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 20:15:07,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 20:15:07,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:15:07,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 20:15:07,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:15:08,040 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:15:08,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:15:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:08,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:08,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:08,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:15:08,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:08,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-24 20:15:08,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:15:08,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:15:08,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:15:08,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:08,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:08,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:08,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:15:08,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:08,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:15:08,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:08,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:08,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:15:08,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:08,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:15:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:08,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:08,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:08,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:15:08,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:08,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:15:08,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:08,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:08,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:08,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:15:08,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:15:08,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:15:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:08,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:08,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:08,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:08,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:08,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:15:08,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:08,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:08,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:15:08,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:15:08,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:15:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:08,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:08,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:08,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:15:08,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:08,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:15:08,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:08,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:15:08,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:08,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:15:08,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:08,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:08,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:08,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:15:08,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:08,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:15:08,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:08,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:15:08,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:15:08,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:15:08,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:08,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:15:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:08,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:08,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:08,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:08,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:08,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:15:08,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:08,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:15:08,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:08,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:15:08,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 20:15:08,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 20:15:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:08,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:08,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:08,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:08,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:08,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:15:08,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:15:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:15:08,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:15:08,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:15:08,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:15:08,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798180402] [2020-09-24 20:15:08,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:15:08,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 20:15:08,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943385235] [2020-09-24 20:15:08,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:15:08,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:15:08,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:15:08,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:15:08,521 INFO L87 Difference]: Start difference. First operand 256 states and 274 transitions. Second operand 12 states. [2020-09-24 20:15:09,028 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:15:09,829 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:15:10,401 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:15:10,751 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:15:11,100 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:15:11,429 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:15:11,775 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:15:12,069 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:15:12,362 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:15:12,670 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:15:12,985 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:15:13,282 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:15:13,874 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:15:14,204 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:15:14,550 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:15:15,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:15:15,039 INFO L93 Difference]: Finished difference Result 440 states and 493 transitions. [2020-09-24 20:15:15,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 20:15:15,040 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 157 [2020-09-24 20:15:15,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:15:15,046 INFO L225 Difference]: With dead ends: 440 [2020-09-24 20:15:15,046 INFO L226 Difference]: Without dead ends: 343 [2020-09-24 20:15:15,047 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2020-09-24 20:15:15,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-09-24 20:15:15,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 316. [2020-09-24 20:15:15,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-09-24 20:15:15,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 339 transitions. [2020-09-24 20:15:15,090 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 339 transitions. Word has length 157 [2020-09-24 20:15:15,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:15:15,091 INFO L479 AbstractCegarLoop]: Abstraction has 316 states and 339 transitions. [2020-09-24 20:15:15,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:15:15,091 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 339 transitions. [2020-09-24 20:15:15,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 20:15:15,094 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:15:15,094 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-24 20:15:15,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:15:15,095 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:15:15,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:15:15,095 INFO L82 PathProgramCache]: Analyzing trace with hash 161937374, now seen corresponding path program 1 times [2020-09-24 20:15:15,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:15:15,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374845613] [2020-09-24 20:15:15,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:15:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:15,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:15,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:15,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:19,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:19,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 20:15:20,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:15:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 20:15:20,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-24 20:15:20,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:15:20,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 20:15:20,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,528 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:15:20,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:15:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:15:20,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-24 20:15:20,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:20,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:20,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:15:20,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:15:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:15:20,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:15:20,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:20,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:15:20,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:15:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:15:20,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:15:20,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:20,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:20,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:15:20,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:15:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:20,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:15:20,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:20,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:20,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:15:20,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:15:20,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:15:20,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:15:20,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:20,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:15:20,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 20:15:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:15:20,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:15:20,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:15:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:15:20,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:15:20,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:15:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:15:20,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 20:15:20,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:15:20,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:15:20,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 20:15:20,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:15:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:15:20,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:15:20,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:15:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:20,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:15:20,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:15:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:20,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:15:20,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:15:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:15:20,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:15:20,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-24 20:15:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:15:20,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:15:20,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:15:20,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:15:20,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:15:20,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-24 20:15:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:20,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:15:20,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:15:20,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:15:20,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:15:20,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:20,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-24 20:15:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:15:20,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:15:20,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:15:20,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:15:20,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:15:20,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:15:20,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:15:20,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:15:20,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:15:20,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:15:20,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:15:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 20:15:21,031 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374845613] [2020-09-24 20:15:21,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:15:21,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 20:15:21,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974020059] [2020-09-24 20:15:21,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:15:21,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:15:21,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:15:21,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:15:21,034 INFO L87 Difference]: Start difference. First operand 316 states and 339 transitions. Second operand 9 states. [2020-09-24 20:15:21,724 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-24 20:15:22,364 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:15:23,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:15:23,166 INFO L93 Difference]: Finished difference Result 399 states and 438 transitions. [2020-09-24 20:15:23,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 20:15:23,167 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 196 [2020-09-24 20:15:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:15:23,168 INFO L225 Difference]: With dead ends: 399 [2020-09-24 20:15:23,168 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 20:15:23,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-09-24 20:15:23,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 20:15:23,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 20:15:23,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 20:15:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 20:15:23,171 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 196 [2020-09-24 20:15:23,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:15:23,171 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 20:15:23,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:15:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 20:15:23,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 20:15:23,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:15:23,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 20:15:23,378 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:15:23,791 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:24,194 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:24,368 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:15:24,727 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:25,087 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:25,248 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:15:25,602 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:25,782 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:15:25,935 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:15:26,288 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:26,449 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:15:26,800 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:26,952 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:15:27,106 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:15:27,374 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 24 [2020-09-24 20:15:27,622 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 23 [2020-09-24 20:15:27,976 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:28,327 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:28,466 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:15:28,818 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:28,979 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:15:29,143 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:15:29,296 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:15:29,648 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-09-24 20:15:29,807 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:15:30,158 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 223