/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:32:29,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:32:29,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:32:29,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:32:29,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:32:29,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:32:29,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:32:29,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:32:29,727 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:32:29,731 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:32:29,731 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:32:29,732 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:32:29,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:32:29,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:32:29,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:32:29,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:32:29,740 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:32:29,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:32:29,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:32:29,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:32:29,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:32:29,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:32:29,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:32:29,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:32:29,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:32:29,759 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:32:29,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:32:29,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:32:29,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:32:29,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:32:29,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:32:29,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:32:29,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:32:29,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:32:29,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:32:29,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:32:29,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:32:29,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:32:29,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:32:29,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:32:29,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:32:29,770 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 [2020-10-13 12:32:29,810 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:32:29,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:32:29,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:32:29,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:32:29,813 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:32:29,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:32:29,813 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:32:29,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:32:29,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:32:29,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:32:29,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:32:29,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:32:29,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:32:29,816 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:32:29,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:32:29,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:32:29,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:32:29,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:32:29,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:32:29,817 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:32:29,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:32:29,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:32:29,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:32:29,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:32:29,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:32:29,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:32:29,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:32:29,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:32:29,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:32:29,820 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:32:30,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:32:30,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:32:30,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:32:30,118 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:32:30,119 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:32:30,119 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-10-13 12:32:30,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/553b437f3/93b81101079844eab89be4bddf773b1e/FLAG9f734c656 [2020-10-13 12:32:30,629 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:32:30,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-10-13 12:32:30,642 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/553b437f3/93b81101079844eab89be4bddf773b1e/FLAG9f734c656 [2020-10-13 12:32:30,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/553b437f3/93b81101079844eab89be4bddf773b1e [2020-10-13 12:32:31,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:32:31,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:32:31,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:32:31,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:32:31,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:32:31,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:30" (1/1) ... [2020-10-13 12:32:31,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3210105d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31, skipping insertion in model container [2020-10-13 12:32:31,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:32:30" (1/1) ... [2020-10-13 12:32:31,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:32:31,066 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:32:31,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:32:31,478 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:32:31,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:32:31,656 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:32:31,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31 WrapperNode [2020-10-13 12:32:31,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:32:31,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:32:31,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:32:31,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:32:31,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31" (1/1) ... [2020-10-13 12:32:31,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31" (1/1) ... [2020-10-13 12:32:31,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31" (1/1) ... [2020-10-13 12:32:31,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31" (1/1) ... [2020-10-13 12:32:31,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31" (1/1) ... [2020-10-13 12:32:31,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31" (1/1) ... [2020-10-13 12:32:31,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31" (1/1) ... [2020-10-13 12:32:31,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:32:31,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:32:31,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:32:31,742 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:32:31,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31" (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 [2020-10-13 12:32:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:32:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:32:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:32:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:32:31,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:32:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:32:31,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:32:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:32:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:32:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:32:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:32:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:32:31,809 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:32:31,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:32:31,810 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:32:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:32:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:32:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:32:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:32:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:32:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-10-13 12:32:31,811 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:32:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:32:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:32:31,812 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:32:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:32:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:32:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:32:31,813 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:32:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:32:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:32:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:32:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:32:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:32:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:32:31,814 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:32:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:32:31,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-13 12:32:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:32:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:32:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:32:31,815 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:32:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:32:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:32:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:32:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:32:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:32:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:32:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:32:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:32:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:32:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:32:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:32:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:32:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:32:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:32:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:32:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:32:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:32:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:32:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:32:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:32:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:32:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:32:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:32:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:32:31,819 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:32:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:32:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:32:31,820 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:32:31,821 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:32:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:32:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-13 12:32:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:32:31,822 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:32:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:32:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-10-13 12:32:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:32:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:32:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:32:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:32:31,823 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:32:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:32:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:32:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:32:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:32:31,824 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:32:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:32:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:32:31,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:32:32,776 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:32:32,777 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:32:32,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:32:32 BoogieIcfgContainer [2020-10-13 12:32:32,786 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:32:32,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:32:32,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:32:32,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:32:32,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:32:30" (1/3) ... [2020-10-13 12:32:32,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a19015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:32:32, skipping insertion in model container [2020-10-13 12:32:32,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:32:31" (2/3) ... [2020-10-13 12:32:32,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a19015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:32:32, skipping insertion in model container [2020-10-13 12:32:32,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:32:32" (3/3) ... [2020-10-13 12:32:32,795 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-10-13 12:32:32,806 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:32:32,814 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:32:32,829 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:32:32,860 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:32:32,861 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:32:32,861 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:32:32,861 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:32:32,861 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:32:32,862 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:32:32,862 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:32:32,862 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:32:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2020-10-13 12:32:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-13 12:32:32,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:32,904 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] [2020-10-13 12:32:32,905 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:32,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:32,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1904787813, now seen corresponding path program 1 times [2020-10-13 12:32:32,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:32,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41990489] [2020-10-13 12:32:32,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:33,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:33,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:33,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:34,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:34,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:37,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:37,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-13 12:32:37,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:32:37,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4541 [2020-10-13 12:32:37,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:37,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:32:37,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:37,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:32:38,131 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:38,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:38,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:38,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:38,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:38,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:38,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 12:32:38,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:38,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:38,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:38,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:38,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:38,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:38,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:38,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:38,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:38,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:38,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:38,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:38,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:38,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:38,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:38,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:38,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:38,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:38,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:38,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:38,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:38,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:38,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:38,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:38,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:38,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:38,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:38,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:38,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:38,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:38,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:38,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:38,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:38,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:38,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:38,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:38,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:38,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:38,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:38,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:38,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:38,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:38,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:38,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:32:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:38,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:38,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:38,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:38,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:38,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:38,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:38,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:38,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:38,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:38,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:32:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:38,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:38,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:38,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:38,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:38,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:38,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:38,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:38,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:38,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:38,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41990489] [2020-10-13 12:32:38,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:38,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:32:38,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53419642] [2020-10-13 12:32:38,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:32:38,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:38,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:32:38,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:32:38,308 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 3 states. [2020-10-13 12:32:39,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:39,540 INFO L93 Difference]: Finished difference Result 275 states and 361 transitions. [2020-10-13 12:32:39,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:32:39,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-13 12:32:39,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:39,562 INFO L225 Difference]: With dead ends: 275 [2020-10-13 12:32:39,562 INFO L226 Difference]: Without dead ends: 149 [2020-10-13 12:32:39,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:32:39,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-13 12:32:39,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 117. [2020-10-13 12:32:39,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-13 12:32:39,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 137 transitions. [2020-10-13 12:32:39,727 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 137 transitions. Word has length 46 [2020-10-13 12:32:39,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:39,728 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 137 transitions. [2020-10-13 12:32:39,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:32:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 137 transitions. [2020-10-13 12:32:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-13 12:32:39,732 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:39,732 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] [2020-10-13 12:32:39,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:32:39,733 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:39,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:39,733 INFO L82 PathProgramCache]: Analyzing trace with hash -8679295, now seen corresponding path program 1 times [2020-10-13 12:32:39,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:39,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347687007] [2020-10-13 12:32:39,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:39,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:39,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:39,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:40,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:41,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:41,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 12:32:44,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:32:44,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4282 [2020-10-13 12:32:44,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:32:44,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:32:44,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:44,319 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:44,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:44,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 12:32:44,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:44,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:44,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:44,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,378 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:44,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:44,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:44,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:44,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:44,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:44,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:44,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:44,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:44,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:44,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:44,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:44,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:44,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:44,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:44,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:44,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:44,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:44,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:44,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:44,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:44,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:32:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:44,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:44,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:44,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:44,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:32:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:44,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:44,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:44,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:44,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:44,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:44,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:44,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:44,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:44,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:44,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:44,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:44,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347687007] [2020-10-13 12:32:44,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:44,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:32:44,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749103454] [2020-10-13 12:32:44,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:32:44,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:44,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:32:44,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:32:44,417 INFO L87 Difference]: Start difference. First operand 117 states and 137 transitions. Second operand 4 states. [2020-10-13 12:32:44,834 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:45,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:45,584 INFO L93 Difference]: Finished difference Result 208 states and 252 transitions. [2020-10-13 12:32:45,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:32:45,585 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-13 12:32:45,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:45,588 INFO L225 Difference]: With dead ends: 208 [2020-10-13 12:32:45,588 INFO L226 Difference]: Without dead ends: 133 [2020-10-13 12:32:45,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:32:45,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-13 12:32:45,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 108. [2020-10-13 12:32:45,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-13 12:32:45,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2020-10-13 12:32:45,638 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 47 [2020-10-13 12:32:45,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:45,638 INFO L479 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2020-10-13 12:32:45,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:32:45,638 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2020-10-13 12:32:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-13 12:32:45,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:45,648 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] [2020-10-13 12:32:45,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:32:45,648 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:45,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:45,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1364944070, now seen corresponding path program 1 times [2020-10-13 12:32:45,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:45,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [789313984] [2020-10-13 12:32:45,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:45,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:45,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:46,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:46,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 12:32:48,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:32:48,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2593 [2020-10-13 12:32:48,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-10-13 12:32:48,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 12:32:48,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:48,601 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:48,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:48,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 12:32:48,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:48,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:48,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:48,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:48,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:48,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:48,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:48,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:48,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:48,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:48,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:48,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:48,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:32:48,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:48,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:48,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:32:48,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:48,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:32:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:48,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:48,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:48,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:48,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:48,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:32:48,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:48,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:48,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:48,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:32:48,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:32:48,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [789313984] [2020-10-13 12:32:48,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:48,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:32:48,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077250561] [2020-10-13 12:32:48,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:32:48,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:48,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:32:48,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:32:48,780 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand 7 states. [2020-10-13 12:32:49,132 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:49,932 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:32:50,259 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:32:50,569 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:32:51,201 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:51,508 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:32:51,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:32:51,946 INFO L93 Difference]: Finished difference Result 271 states and 340 transitions. [2020-10-13 12:32:51,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:32:51,947 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-13 12:32:51,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:32:51,950 INFO L225 Difference]: With dead ends: 271 [2020-10-13 12:32:51,950 INFO L226 Difference]: Without dead ends: 187 [2020-10-13 12:32:51,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-10-13 12:32:51,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-10-13 12:32:52,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 167. [2020-10-13 12:32:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-13 12:32:52,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2020-10-13 12:32:52,017 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 51 [2020-10-13 12:32:52,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:32:52,017 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2020-10-13 12:32:52,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:32:52,017 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2020-10-13 12:32:52,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 12:32:52,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:32:52,019 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 12:32:52,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:32:52,019 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:32:52,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:32:52,020 INFO L82 PathProgramCache]: Analyzing trace with hash 109129645, now seen corresponding path program 1 times [2020-10-13 12:32:52,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:32:52,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651301623] [2020-10-13 12:32:52,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:32:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:52,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:52,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 12:32:57,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:32:57,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 12:32:57,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:57,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-13 12:32:57,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:32:57,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:32:57,400 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:32:57,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:32:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 12:32:57,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:32:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:57,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:32:57,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:57,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:32:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:32:57,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:32:57,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:32:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:32:57,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 12:32:57,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:32:57,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-13 12:32:57,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:32:57,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:32:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:32:57,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:32:57,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:32:57,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 12:32:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:32:57,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:32:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:32:57,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:32:57,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:32:57,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:32:57,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:32:57,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:32:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:32:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:32:57,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:32:57,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:57,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 12:32:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:32:57,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:32:57,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:32:57,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:32:57,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:32:57,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:32:57,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:32:57,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:32:57,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:32:57,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:32:57,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:32:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 12:32:57,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651301623] [2020-10-13 12:32:57,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:32:57,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:32:57,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146984944] [2020-10-13 12:32:57,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:32:57,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:32:57,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:32:57,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:32:57,762 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand 8 states. [2020-10-13 12:32:58,651 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:58,931 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:32:59,189 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:32:59,436 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:33:00,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:00,082 INFO L93 Difference]: Finished difference Result 348 states and 453 transitions. [2020-10-13 12:33:00,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:33:00,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2020-10-13 12:33:00,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:00,091 INFO L225 Difference]: With dead ends: 348 [2020-10-13 12:33:00,091 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 12:33:00,093 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:33:00,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 12:33:00,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 172. [2020-10-13 12:33:00,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-10-13 12:33:00,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2020-10-13 12:33:00,152 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 89 [2020-10-13 12:33:00,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:00,153 INFO L479 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2020-10-13 12:33:00,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:33:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2020-10-13 12:33:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 12:33:00,154 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:00,155 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 12:33:00,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:33:00,155 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:00,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:00,155 INFO L82 PathProgramCache]: Analyzing trace with hash -788263633, now seen corresponding path program 1 times [2020-10-13 12:33:00,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:00,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [575991810] [2020-10-13 12:33:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:00,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:00,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:00,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 12:33:05,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:33:05,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 12:33:05,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:33:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-13 12:33:05,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:05,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,435 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:33:05,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:33:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:05,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 12:33:05,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:05,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:33:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:05,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:05,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:05,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:33:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:05,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:05,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:05,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:05,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:05,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:05,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:33:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:05,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:05,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:33:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:33:05,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:33:05,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:33:05,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:33:05,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:05,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:33:05,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:33:05,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:33:05,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:33:05,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:05,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:33:05,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:05,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:33:05,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:05,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:05,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:33:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:33:05,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:05,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 12:33:05,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:33:05,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:05,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:05,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:05,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:05,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:05,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:05,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:05,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:33:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:05,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:05,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:05,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 12:33:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:05,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:05,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:05,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:05,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:05,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:05,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:05,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:05,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:05,602 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 12:33:05,602 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [575991810] [2020-10-13 12:33:05,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:33:05,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:33:05,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198852800] [2020-10-13 12:33:05,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:33:05,604 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:33:05,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:33:05,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:33:05,605 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand 7 states. [2020-10-13 12:33:06,376 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:06,655 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:06,943 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:07,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:07,563 INFO L93 Difference]: Finished difference Result 358 states and 462 transitions. [2020-10-13 12:33:07,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:33:07,563 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2020-10-13 12:33:07,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:07,566 INFO L225 Difference]: With dead ends: 358 [2020-10-13 12:33:07,566 INFO L226 Difference]: Without dead ends: 210 [2020-10-13 12:33:07,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:33:07,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2020-10-13 12:33:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 176. [2020-10-13 12:33:07,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-10-13 12:33:07,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 210 transitions. [2020-10-13 12:33:07,600 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 210 transitions. Word has length 89 [2020-10-13 12:33:07,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:07,600 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 210 transitions. [2020-10-13 12:33:07,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:33:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 210 transitions. [2020-10-13 12:33:07,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-13 12:33:07,602 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:07,602 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 12:33:07,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:33:07,602 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:07,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:07,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1182675824, now seen corresponding path program 1 times [2020-10-13 12:33:07,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:07,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090938205] [2020-10-13 12:33:07,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:07,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:07,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:07,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 12:33:11,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:33:11,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3548 [2020-10-13 12:33:11,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:33:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 12:33:11,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:33:11,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:11,460 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:33:11,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:33:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:11,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:33:11,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:11,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:11,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:11,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:33:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:11,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:11,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:11,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:11,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:11,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:33:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:11,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:11,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:11,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:11,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:11,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:11,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:11,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:33:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:11,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:11,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:11,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:11,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:11,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 12:33:11,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:33:11,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 12:33:11,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 12:33:11,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 12:33:11,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:11,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:33:11,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:33:11,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:11,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:11,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:33:11,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:11,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:11,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:11,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:11,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:33:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:33:11,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 12:33:11,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 12:33:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 12:33:11,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:11,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:33:11,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:33:11,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:33:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 12:33:11,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:11,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:11,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:33:11,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:33:11,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:33:11,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:11,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:11,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:33:11,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:11,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:11,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 12:33:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:11,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:33:11,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:33:11,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:11,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:11,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:11,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-13 12:33:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:11,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:11,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:11,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:11,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:11,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:11,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:11,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:11,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:11,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 12:33:11,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090938205] [2020-10-13 12:33:11,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:33:11,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 12:33:11,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023145064] [2020-10-13 12:33:11,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 12:33:11,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:33:11,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 12:33:11,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:33:11,861 INFO L87 Difference]: Start difference. First operand 176 states and 210 transitions. Second operand 12 states. [2020-10-13 12:33:12,321 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:13,156 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:33:13,483 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:33:13,781 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-13 12:33:14,055 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:33:14,447 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:33:15,309 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:33:15,580 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:33:15,875 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:33:16,145 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-13 12:33:17,015 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:17,288 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:17,566 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:17,821 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:18,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:18,043 INFO L93 Difference]: Finished difference Result 506 states and 670 transitions. [2020-10-13 12:33:18,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-13 12:33:18,043 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-13 12:33:18,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:18,047 INFO L225 Difference]: With dead ends: 506 [2020-10-13 12:33:18,048 INFO L226 Difference]: Without dead ends: 354 [2020-10-13 12:33:18,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2020-10-13 12:33:18,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-13 12:33:18,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 300. [2020-10-13 12:33:18,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-10-13 12:33:18,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 367 transitions. [2020-10-13 12:33:18,102 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 367 transitions. Word has length 89 [2020-10-13 12:33:18,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:18,102 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 367 transitions. [2020-10-13 12:33:18,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 12:33:18,103 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 367 transitions. [2020-10-13 12:33:18,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-13 12:33:18,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:18,105 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-13 12:33:18,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:33:18,105 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:18,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:18,106 INFO L82 PathProgramCache]: Analyzing trace with hash -216562468, now seen corresponding path program 1 times [2020-10-13 12:33:18,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:18,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1310941103] [2020-10-13 12:33:18,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:18,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:18,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:18,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:18,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:19,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:20,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:20,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:20,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 12:33:23,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-13 12:33:23,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 12:33:23,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 12:33:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 12:33:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-13 12:33:23,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:23,496 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:33:23,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:33:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 12:33:23,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:33:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:23,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:23,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:33:23,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:23,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:23,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:23,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:23,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:23,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:33:23,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:23,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:23,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:23,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 12:33:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:23,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:33:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:33:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 12:33:23,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:33:23,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-13 12:33:23,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:33:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-13 12:33:23,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 12:33:23,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:33:23,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:33:23,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:33:23,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:33:23,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:33:23,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:23,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:33:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:33:23,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:33:23,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:33:23,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:23,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:23,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:23,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:23,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:33:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:33:23,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:33:23,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:33:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 12:33:23,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:23,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:33:23,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:33:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:23,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:33:23,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 12:33:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 12:33:23,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:23,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 12:33:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:23,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:23,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 12:33:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:23,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:23,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:23,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 12:33:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:23,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:23,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:23,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:23,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:23,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:33:24,000 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-13 12:33:24,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1310941103] [2020-10-13 12:33:24,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:33:24,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-13 12:33:24,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866811734] [2020-10-13 12:33:24,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-13 12:33:24,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:33:24,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-13 12:33:24,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-10-13 12:33:24,005 INFO L87 Difference]: Start difference. First operand 300 states and 367 transitions. Second operand 12 states. [2020-10-13 12:33:24,644 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:33:25,333 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:33:25,631 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:25,934 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:26,209 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:26,466 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:26,768 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:27,067 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:33:29,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:29,384 INFO L93 Difference]: Finished difference Result 778 states and 1074 transitions. [2020-10-13 12:33:29,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-13 12:33:29,385 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 124 [2020-10-13 12:33:29,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:29,390 INFO L225 Difference]: With dead ends: 778 [2020-10-13 12:33:29,390 INFO L226 Difference]: Without dead ends: 485 [2020-10-13 12:33:29,392 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=219, Invalid=773, Unknown=0, NotChecked=0, Total=992 [2020-10-13 12:33:29,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-10-13 12:33:29,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 300. [2020-10-13 12:33:29,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-10-13 12:33:29,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 354 transitions. [2020-10-13 12:33:29,466 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 354 transitions. Word has length 124 [2020-10-13 12:33:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:29,467 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 354 transitions. [2020-10-13 12:33:29,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-13 12:33:29,467 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 354 transitions. [2020-10-13 12:33:29,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 12:33:29,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:29,469 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-13 12:33:29,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:33:29,470 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:29,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:29,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1160824736, now seen corresponding path program 1 times [2020-10-13 12:33:29,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:29,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683727462] [2020-10-13 12:33:29,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:29,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:29,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:29,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:29,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:30,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:31,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:31,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 12:33:31,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:33:31,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2403 [2020-10-13 12:33:31,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:31,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:33:31,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:31,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 12:33:31,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,162 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:33:32,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:33:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:32,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 12:33:32,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:32,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:33:32,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:33:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:32,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:33:32,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:32,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:33:32,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:33:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:32,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:32,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:33:32,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:32,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:32,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:32,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:32,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:33:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:32,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:32,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:32,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:33:32,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:33:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 12:33:32,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 12:33:32,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:33:32,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 12:33:32,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 12:33:32,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:33:32,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 12:33:32,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 12:33:32,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:33:32,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:32,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:33:32,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:32,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:32,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:33:32,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:33:32,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:32,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:33:32,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:33:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:33:32,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:33:32,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:33:32,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:33:32,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:32,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:32,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:32,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:32,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:32,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:32,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:32,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:33:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:33:32,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:33:32,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:33:32,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:32,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:32,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:32,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:32,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-13 12:33:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:32,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:32,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:32,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:32,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:32,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:33:32,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-13 12:33:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:32,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:32,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:32,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:32,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:32,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 12:33:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:32,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:32,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:32,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-13 12:33:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:32,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:32,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:32,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:32,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:32,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:32,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:32,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:32,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:32,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:32,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 12:33:32,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683727462] [2020-10-13 12:33:32,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:33:32,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 12:33:32,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724183682] [2020-10-13 12:33:32,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 12:33:32,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:33:32,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 12:33:32,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-10-13 12:33:32,526 INFO L87 Difference]: Start difference. First operand 300 states and 354 transitions. Second operand 11 states. [2020-10-13 12:33:32,920 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:33:33,657 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-10-13 12:33:35,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:35,758 INFO L93 Difference]: Finished difference Result 972 states and 1286 transitions. [2020-10-13 12:33:35,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-13 12:33:35,758 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-10-13 12:33:35,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:35,765 INFO L225 Difference]: With dead ends: 972 [2020-10-13 12:33:35,765 INFO L226 Difference]: Without dead ends: 696 [2020-10-13 12:33:35,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2020-10-13 12:33:35,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-13 12:33:35,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 594. [2020-10-13 12:33:35,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-10-13 12:33:35,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 719 transitions. [2020-10-13 12:33:35,888 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 719 transitions. Word has length 120 [2020-10-13 12:33:35,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:35,889 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 719 transitions. [2020-10-13 12:33:35,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 12:33:35,889 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 719 transitions. [2020-10-13 12:33:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-13 12:33:35,891 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:35,891 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-13 12:33:35,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:33:35,892 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:35,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:35,892 INFO L82 PathProgramCache]: Analyzing trace with hash 2049258684, now seen corresponding path program 1 times [2020-10-13 12:33:35,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:35,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216883252] [2020-10-13 12:33:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:35,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:35,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 12:33:36,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:33:36,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-13 12:33:36,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 12:33:36,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 12:33:36,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,374 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:33:36,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:33:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 12:33:36,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:33:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:36,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:33:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:36,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:36,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:33:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:33:36,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:33:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:33:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 12:33:36,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:33:36,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:33:36,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 12:33:36,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:33:36,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:33:36,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:33:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 12:33:36,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:33:36,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:33:36,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 12:33:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 12:33:36,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:36,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 12:33:36,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:36,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:33:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:33:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 12:33:36,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:36,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:33:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 12:33:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-13 12:33:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:36,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:36,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-13 12:33:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:33:36,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:33:36,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:33:36,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:33:36,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 12:33:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:36,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-10-13 12:33:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:33:36,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:33:36,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:33:36,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:33:36,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:33:36,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:33:36,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:33:36,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:33:36,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:33:36,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:33:36,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:33:36,537 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 12:33:36,537 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216883252] [2020-10-13 12:33:36,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:33:36,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 12:33:36,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715056591] [2020-10-13 12:33:36,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:33:36,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:33:36,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:33:36,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:33:36,539 INFO L87 Difference]: Start difference. First operand 594 states and 719 transitions. Second operand 8 states. [2020-10-13 12:33:36,832 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:33:37,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:33:37,791 INFO L93 Difference]: Finished difference Result 1266 states and 1617 transitions. [2020-10-13 12:33:37,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 12:33:37,792 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-10-13 12:33:37,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:33:37,800 INFO L225 Difference]: With dead ends: 1266 [2020-10-13 12:33:37,800 INFO L226 Difference]: Without dead ends: 696 [2020-10-13 12:33:37,803 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:33:37,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-13 12:33:37,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 594. [2020-10-13 12:33:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-10-13 12:33:37,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 707 transitions. [2020-10-13 12:33:37,918 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 707 transitions. Word has length 124 [2020-10-13 12:33:37,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:33:37,919 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 707 transitions. [2020-10-13 12:33:37,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:33:37,919 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 707 transitions. [2020-10-13 12:33:37,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-10-13 12:33:37,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:33:37,921 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-13 12:33:37,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 12:33:37,922 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:33:37,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:33:37,922 INFO L82 PathProgramCache]: Analyzing trace with hash 773081915, now seen corresponding path program 1 times [2020-10-13 12:33:37,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:33:37,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [909402376] [2020-10-13 12:33:37,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:33:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:33:37,954 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:33:37,955 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:33:37,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 12:33:37,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:33:37 BoogieIcfgContainer [2020-10-13 12:33:37,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:33:37,990 INFO L168 Benchmark]: Toolchain (without parser) took 66983.02 ms. Allocated memory was 148.4 MB in the beginning and 918.6 MB in the end (delta: 770.2 MB). Free memory was 103.1 MB in the beginning and 248.9 MB in the end (delta: -145.8 MB). Peak memory consumption was 624.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:37,991 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 12:33:37,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.70 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 173.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:37,992 INFO L168 Benchmark]: Boogie Preprocessor took 84.39 ms. Allocated memory is still 205.0 MB. Free memory was 173.1 MB in the beginning and 169.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:37,993 INFO L168 Benchmark]: RCFGBuilder took 1044.13 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 169.2 MB in the beginning and 193.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:37,994 INFO L168 Benchmark]: TraceAbstraction took 65201.20 ms. Allocated memory was 234.9 MB in the beginning and 918.6 MB in the end (delta: 683.7 MB). Free memory was 193.5 MB in the beginning and 248.9 MB in the end (delta: -55.4 MB). Peak memory consumption was 628.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:33:37,997 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.70 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 102.6 MB in the beginning and 173.1 MB in the end (delta: -70.4 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 84.39 ms. Allocated memory is still 205.0 MB. Free memory was 173.1 MB in the beginning and 169.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1044.13 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 169.2 MB in the beginning and 193.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 80.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 65201.20 ms. Allocated memory was 234.9 MB in the beginning and 918.6 MB in the end (delta: 683.7 MB). Free memory was 193.5 MB in the beginning and 248.9 MB in the end (delta: -55.4 MB). Peak memory consumption was 628.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 887]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L480] int waterLevel = 1; [L481] int methaneLevelCritical = 0; [L578] int pumpRunning = 0; [L579] int systemActive = 1; [L749] int cleanupTimeShifts = 4; [L825] int retValue_acc ; [L826] int tmp ; [L830] FCALL select_helpers() [L831] FCALL select_features() [L832] CALL, EXPR valid_product() [L874] int retValue_acc ; [L877] retValue_acc = 1 [L878] return (retValue_acc); [L832] RET, EXPR valid_product() [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) [L836] FCALL setup() [L837] CALL runTest() [L816] CALL test() [L411] int splverifierCounter ; [L412] int tmp ; [L413] int tmp___0 ; [L414] int tmp___1 ; [L415] int tmp___2 ; [L418] splverifierCounter = 0 [L420] COND TRUE 1 [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND TRUE \read(tmp) [L432] CALL waterRise() [L498] COND TRUE waterLevel < 2 [L499] waterLevel = waterLevel + 1 [L432] RET waterRise() [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND FALSE !(\read(tmp___0)) [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L463] CALL timeShift() [L586] COND FALSE !(\read(pumpRunning)) [L593] COND TRUE \read(systemActive) [L595] CALL processEnvironment() [L615] int tmp ; [L618] COND TRUE ! pumpRunning [L620] CALL, EXPR isHighWaterLevel() [L730] int retValue_acc ; [L731] int tmp ; [L732] int tmp___0 ; [L736] CALL, EXPR isHighWaterSensorDry() [L560] int retValue_acc ; [L563] COND FALSE !(waterLevel < 2) [L567] retValue_acc = 0 [L568] return (retValue_acc); [L736] RET, EXPR isHighWaterSensorDry() [L736] tmp = isHighWaterSensorDry() [L738] COND FALSE !(\read(tmp)) [L741] tmp___0 = 1 [L743] retValue_acc = tmp___0 [L744] return (retValue_acc); [L620] RET, EXPR isHighWaterLevel() [L620] tmp = isHighWaterLevel() [L622] COND TRUE \read(tmp) [L624] CALL activatePump() [L649] int tmp ; [L653] CALL, EXPR isMethaneAlarm() [L674] int retValue_acc ; [L678] CALL, EXPR isMethaneLevelCritical() [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); [L678] RET, EXPR isMethaneLevelCritical() [L678] retValue_acc = isMethaneLevelCritical() [L680] return (retValue_acc); [L653] RET, EXPR isMethaneAlarm() [L653] tmp = isMethaneAlarm() [L655] COND FALSE !(\read(tmp)) [L659] CALL activatePump__wrappee__highWaterSensor() [L643] pumpRunning = 1 [L659] RET activatePump__wrappee__highWaterSensor() [L624] RET activatePump() [L595] RET processEnvironment() [L601] CALL __utac_acc__Specification1_spec__1() [L893] int tmp ; [L894] int tmp___0 ; [L898] CALL, EXPR isMethaneLevelCritical() [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); [L898] RET, EXPR isMethaneLevelCritical() [L898] tmp = isMethaneLevelCritical() [L900] COND FALSE !(\read(tmp)) [L601] RET __utac_acc__Specification1_spec__1() [L463] RET timeShift() [L420] COND TRUE 1 [L422] COND TRUE splverifierCounter < 4 [L428] tmp = __VERIFIER_nondet_int() [L430] COND FALSE !(\read(tmp)) [L438] tmp___0 = __VERIFIER_nondet_int() [L440] COND TRUE \read(tmp___0) [L442] CALL changeMethaneLevel() [L510] COND FALSE !(\read(methaneLevelCritical)) [L513] methaneLevelCritical = 1 [L442] RET changeMethaneLevel() [L448] tmp___2 = __VERIFIER_nondet_int() [L450] COND TRUE \read(tmp___2) [L463] CALL timeShift() [L586] COND TRUE \read(pumpRunning) [L588] CALL lowerWaterLevel() [L486] COND TRUE waterLevel > 0 [L487] waterLevel = waterLevel - 1 [L588] RET lowerWaterLevel() [L593] COND TRUE \read(systemActive) [L595] CALL processEnvironment() [L615] int tmp ; [L618] COND FALSE !(! pumpRunning) [L633] FCALL processEnvironment__wrappee__base() [L595] RET processEnvironment() [L601] CALL __utac_acc__Specification1_spec__1() [L893] int tmp ; [L894] int tmp___0 ; [L898] CALL, EXPR isMethaneLevelCritical() [L519] int retValue_acc ; [L522] retValue_acc = methaneLevelCritical [L523] return (retValue_acc); [L898] RET, EXPR isMethaneLevelCritical() [L898] tmp = isMethaneLevelCritical() [L900] COND TRUE \read(tmp) [L902] CALL, EXPR isPumpRunning() [L685] int retValue_acc ; [L688] retValue_acc = pumpRunning [L689] return (retValue_acc); [L902] RET, EXPR isPumpRunning() [L902] tmp___0 = isPumpRunning() [L904] COND TRUE \read(tmp___0) [L906] CALL __automaton_fail() [L887] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 222 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 65.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 26.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 982 SDtfs, 2239 SDslu, 1050 SDs, 0 SdLazy, 5376 SolverSat, 1447 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 396 GetRequests, 270 SyntacticMatches, 3 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=594occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 587 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 37.5s InterpolantComputationTime, 911 NumberOfCodeBlocks, 911 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 770 ConstructedInterpolants, 0 QuantifiedInterpolants, 256267 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 83/88 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...