/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:12:27,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:12:27,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:12:27,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:12:27,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:12:27,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:12:27,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:12:27,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:12:27,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:12:27,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:12:27,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:12:27,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:12:27,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:12:27,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:12:27,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:12:27,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:12:27,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:12:27,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:12:27,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:12:27,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:12:27,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:12:27,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:12:27,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:12:27,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:12:27,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:12:27,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:12:27,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:12:27,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:12:27,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:12:27,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:12:27,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:12:27,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:12:27,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:12:27,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:12:27,734 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:12:27,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:12:27,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:12:27,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:12:27,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:12:27,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:12:27,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:12:27,738 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:12:27,765 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:12:27,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:12:27,767 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:12:27,767 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:12:27,767 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:12:27,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:12:27,768 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:12:27,768 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:12:27,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:12:27,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:12:27,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:12:27,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:12:27,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:12:27,769 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:12:27,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:12:27,769 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:12:27,770 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:12:27,770 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:12:27,770 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:12:27,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:12:27,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:12:27,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:12:27,771 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:12:27,771 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:12:27,771 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:12:27,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:12:27,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:12:27,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:12:27,772 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:12:27,772 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:12:28,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:12:28,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:12:28,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:12:28,256 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:12:28,257 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:12:28,258 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-09-24 19:12:28,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5707fe717/9c0731ced3564e35b72f2f37c1c06646/FLAG08ab338f2 [2020-09-24 19:12:28,954 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:12:28,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-09-24 19:12:28,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5707fe717/9c0731ced3564e35b72f2f37c1c06646/FLAG08ab338f2 [2020-09-24 19:12:29,212 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5707fe717/9c0731ced3564e35b72f2f37c1c06646 [2020-09-24 19:12:29,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:12:29,231 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:12:29,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:29,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:12:29,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:12:29,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:29" (1/1) ... [2020-09-24 19:12:29,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51800d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:29, skipping insertion in model container [2020-09-24 19:12:29,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:12:29" (1/1) ... [2020-09-24 19:12:29,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:12:29,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:12:29,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:29,768 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:12:29,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:12:30,019 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:12:30,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30 WrapperNode [2020-09-24 19:12:30,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:12:30,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:12:30,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:12:30,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:12:30,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30" (1/1) ... [2020-09-24 19:12:30,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30" (1/1) ... [2020-09-24 19:12:30,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30" (1/1) ... [2020-09-24 19:12:30,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30" (1/1) ... [2020-09-24 19:12:30,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30" (1/1) ... [2020-09-24 19:12:30,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30" (1/1) ... [2020-09-24 19:12:30,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30" (1/1) ... [2020-09-24 19:12:30,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:12:30,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:12:30,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:12:30,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:12:30,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:12:30,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:12:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:12:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:12:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:12:30,203 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:12:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:12:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:12:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:12:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:12:30,204 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:12:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:12:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:12:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:12:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 19:12:30,205 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:12:30,206 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 19:12:30,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:30,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:30,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:30,206 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:12:30,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:12:30,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:12:30,207 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:12:30,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:30,207 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:12:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:12:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:12:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:12:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:12:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:12:30,208 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:12:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:12:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:12:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:12:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:12:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:12:30,209 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:12:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 19:12:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:12:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:12:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:12:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:12:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:12:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:12:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:12:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:12:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:12:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:12:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:12:30,211 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 19:12:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:12:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:12:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:12:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:12:30,212 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:12:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:12:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 19:12:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 19:12:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:12:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:12:30,213 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:12:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 19:12:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 19:12:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 19:12:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:12:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:12:30,214 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:12:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:12:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:12:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:12:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:12:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:12:30,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:12:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:12:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:12:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:12:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:12:30,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:12:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:12:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:12:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:12:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:12:30,219 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:12:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:12:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:12:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:12:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:12:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:12:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:12:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:12:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:12:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:12:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:12:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:12:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:12:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:12:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:12:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:12:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:12:31,451 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:12:31,451 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:12:31,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:31 BoogieIcfgContainer [2020-09-24 19:12:31,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:12:31,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:12:31,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:12:31,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:12:31,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:12:29" (1/3) ... [2020-09-24 19:12:31,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cc1ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:31, skipping insertion in model container [2020-09-24 19:12:31,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:12:30" (2/3) ... [2020-09-24 19:12:31,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cc1ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:12:31, skipping insertion in model container [2020-09-24 19:12:31,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:12:31" (3/3) ... [2020-09-24 19:12:31,469 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2020-09-24 19:12:31,481 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:12:31,493 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:12:31,517 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:12:31,548 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:12:31,548 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:12:31,548 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:12:31,548 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:12:31,549 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:12:31,549 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:12:31,549 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:12:31,549 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:12:31,582 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states. [2020-09-24 19:12:31,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 19:12:31,602 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:31,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:31,605 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:31,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:31,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1566233941, now seen corresponding path program 1 times [2020-09-24 19:12:31,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:31,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529023490] [2020-09-24 19:12:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:32,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:32,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:33,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:33,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 19:12:33,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:33,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1020 [2020-09-24 19:12:33,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:12:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:33,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:12:33,459 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:33,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:33,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:33,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:33,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:33,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:33,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:33,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-24 19:12:33,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:33,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:33,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:33,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:33,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:33,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:33,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:33,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:33,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:33,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:33,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:33,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:33,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:33,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:33,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:33,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:33,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:33,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:33,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:33,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:33,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:33,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:33,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:33,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:33,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:33,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:33,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:33,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:33,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:33,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:12:33,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:33,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:33,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:33,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:33,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:33,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:33,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:33,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:33,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:33,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:12:33,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:33,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:33,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:33,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:33,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:33,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:12:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:33,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:33,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:33,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:33,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:33,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:33,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:33,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:33,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:33,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:33,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:33,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:12:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:33,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:33,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:33,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:33,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:33,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:33,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:33,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:33,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:33,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529023490] [2020-09-24 19:12:33,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:33,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:12:33,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386710272] [2020-09-24 19:12:33,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:12:33,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:33,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:12:33,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:33,859 INFO L87 Difference]: Start difference. First operand 347 states. Second operand 3 states. [2020-09-24 19:12:35,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:35,541 INFO L93 Difference]: Finished difference Result 564 states and 670 transitions. [2020-09-24 19:12:35,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:12:35,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 19:12:35,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:35,567 INFO L225 Difference]: With dead ends: 564 [2020-09-24 19:12:35,568 INFO L226 Difference]: Without dead ends: 342 [2020-09-24 19:12:35,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:12:35,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-24 19:12:35,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 296. [2020-09-24 19:12:35,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-24 19:12:35,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 324 transitions. [2020-09-24 19:12:35,728 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 324 transitions. Word has length 142 [2020-09-24 19:12:35,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:35,729 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 324 transitions. [2020-09-24 19:12:35,730 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:12:35,730 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 324 transitions. [2020-09-24 19:12:35,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 19:12:35,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:35,736 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:35,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:12:35,736 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:35,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:35,737 INFO L82 PathProgramCache]: Analyzing trace with hash -524191348, now seen corresponding path program 1 times [2020-09-24 19:12:35,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:35,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [63057369] [2020-09-24 19:12:35,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:35,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:35,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:35,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:36,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:36,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 19:12:36,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:36,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-24 19:12:36,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:36,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:36,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:12:36,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:12:36,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:37,157 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:37,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:37,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:37,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:37,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:37,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:37,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 19:12:37,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:37,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:37,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:37,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:37,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:37,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:37,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:37,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:37,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:37,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:37,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:37,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:37,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:37,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:37,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:37,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:37,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:37,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:37,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:37,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:37,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:37,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:37,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:37,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:37,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:37,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:37,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:37,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:37,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:37,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:37,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:37,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:37,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:37,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:37,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:37,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:37,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:37,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:37,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:37,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:37,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:37,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:12:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:37,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:37,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:37,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:37,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:37,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:37,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:37,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:37,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:37,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:37,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:12:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:37,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:37,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:37,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:37,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:37,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:37,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:37,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [63057369] [2020-09-24 19:12:37,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:37,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:12:37,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158151016] [2020-09-24 19:12:37,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:12:37,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:37,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:12:37,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:12:37,443 INFO L87 Difference]: Start difference. First operand 296 states and 324 transitions. Second operand 4 states. [2020-09-24 19:12:38,048 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:12:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:39,185 INFO L93 Difference]: Finished difference Result 471 states and 533 transitions. [2020-09-24 19:12:39,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:12:39,190 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 19:12:39,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:39,197 INFO L225 Difference]: With dead ends: 471 [2020-09-24 19:12:39,197 INFO L226 Difference]: Without dead ends: 325 [2020-09-24 19:12:39,199 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 [2020-09-24 19:12:39,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-09-24 19:12:39,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 286. [2020-09-24 19:12:39,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-09-24 19:12:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 311 transitions. [2020-09-24 19:12:39,261 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 311 transitions. Word has length 143 [2020-09-24 19:12:39,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:39,262 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 311 transitions. [2020-09-24 19:12:39,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:12:39,262 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 311 transitions. [2020-09-24 19:12:39,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 19:12:39,265 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:39,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:39,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:12:39,266 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:39,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:39,266 INFO L82 PathProgramCache]: Analyzing trace with hash 2075975327, now seen corresponding path program 1 times [2020-09-24 19:12:39,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:39,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417009783] [2020-09-24 19:12:39,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:39,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:39,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:12:40,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:40,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1000 [2020-09-24 19:12:40,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:12:40,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:40,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:40,711 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:40,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:40,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 19:12:40,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:40,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:40,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:40,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:40,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:40,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:40,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:40,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:40,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:12:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:12:40,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:40,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:40,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:12:40,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:12:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:40,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:40,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:12:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:40,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:40,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:40,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:40,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:40,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:40,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:40,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:40,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:40,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:40,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417009783] [2020-09-24 19:12:40,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:40,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:12:40,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748813334] [2020-09-24 19:12:40,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:12:40,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:40,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:12:40,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:12:40,960 INFO L87 Difference]: Start difference. First operand 286 states and 311 transitions. Second operand 5 states. [2020-09-24 19:12:41,549 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:43,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:43,937 INFO L93 Difference]: Finished difference Result 712 states and 826 transitions. [2020-09-24 19:12:43,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:12:43,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 19:12:43,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:43,944 INFO L225 Difference]: With dead ends: 712 [2020-09-24 19:12:43,944 INFO L226 Difference]: Without dead ends: 536 [2020-09-24 19:12:43,946 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:12:43,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2020-09-24 19:12:44,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 452. [2020-09-24 19:12:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-09-24 19:12:44,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 503 transitions. [2020-09-24 19:12:44,024 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 503 transitions. Word has length 156 [2020-09-24 19:12:44,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:44,025 INFO L479 AbstractCegarLoop]: Abstraction has 452 states and 503 transitions. [2020-09-24 19:12:44,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:12:44,025 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 503 transitions. [2020-09-24 19:12:44,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:12:44,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:44,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:44,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:12:44,029 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:44,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:44,030 INFO L82 PathProgramCache]: Analyzing trace with hash 629376790, now seen corresponding path program 1 times [2020-09-24 19:12:44,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:44,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174140935] [2020-09-24 19:12:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:44,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:44,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:45,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:45,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 19:12:45,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:45,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:12:45,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:45,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:12:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 19:12:45,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-09-24 19:12:45,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:45,410 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:45,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:45,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:45,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:45,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:45,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:45,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-24 19:12:45,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:45,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 19:12:45,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:45,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:45,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:45,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:45,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:45,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:45,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:45,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:45,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:45,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:45,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:45,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:45,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:45,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:45,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:45,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:45,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:45,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:45,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:45,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:45,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:45,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:45,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:45,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:45,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:45,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:45,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:45,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:12:45,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:45,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:45,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:45,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:45,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:45,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:45,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:45,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:45,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:45,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:45,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:45,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:45,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:45,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:45,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:12:45,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:45,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:45,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:45,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:45,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:45,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:45,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:45,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:45,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:45,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:12:45,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:45,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:12:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:45,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:45,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:45,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:45,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:45,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:12:45,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:45,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:12:45,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:45,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:12:45,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:45,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:12:45,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:45,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:45,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:45,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:45,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:45,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:45,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:45,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:45,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:45,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:45,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:45,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:45,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174140935] [2020-09-24 19:12:45,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:45,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:12:45,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105117758] [2020-09-24 19:12:45,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:12:45,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:45,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:12:45,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:12:45,935 INFO L87 Difference]: Start difference. First operand 452 states and 503 transitions. Second operand 10 states. [2020-09-24 19:12:46,379 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:47,939 WARN L193 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-24 19:12:48,582 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-24 19:12:49,042 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:49,527 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:12:49,830 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:12:50,193 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:12:50,507 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:12:51,225 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:12:53,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:53,279 INFO L93 Difference]: Finished difference Result 1238 states and 1515 transitions. [2020-09-24 19:12:53,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:12:53,280 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 19:12:53,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:53,287 INFO L225 Difference]: With dead ends: 1238 [2020-09-24 19:12:53,287 INFO L226 Difference]: Without dead ends: 896 [2020-09-24 19:12:53,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 19:12:53,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2020-09-24 19:12:53,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 791. [2020-09-24 19:12:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-09-24 19:12:53,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 923 transitions. [2020-09-24 19:12:53,410 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 923 transitions. Word has length 161 [2020-09-24 19:12:53,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:53,411 INFO L479 AbstractCegarLoop]: Abstraction has 791 states and 923 transitions. [2020-09-24 19:12:53,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:12:53,411 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 923 transitions. [2020-09-24 19:12:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 19:12:53,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:53,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:53,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:12:53,416 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:53,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:53,416 INFO L82 PathProgramCache]: Analyzing trace with hash -182206917, now seen corresponding path program 1 times [2020-09-24 19:12:53,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:53,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46350921] [2020-09-24 19:12:53,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:53,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:53,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:12:54,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:54,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-24 19:12:54,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:12:54,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 19:12:54,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:54,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:54,765 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:54,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:54,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-24 19:12:54,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:54,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:54,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:54,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:54,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:54,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:54,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:54,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:54,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:54,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:54,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:54,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:54,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:54,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:54,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:54,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:54,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:54,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:54,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:54,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:54,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:54,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:54,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:12:54,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:54,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:54,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:54,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:54,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:54,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:12:54,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:54,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:54,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:12:54,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:54,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:12:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:54,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:54,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:12:54,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:12:54,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:54,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:54,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:12:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:54,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:54,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:54,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:54,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:54,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:54,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:54,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 19:12:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:54,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:54,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:54,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:54,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:54,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:54,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:54,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:12:54,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:54,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:55,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:12:55,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46350921] [2020-09-24 19:12:55,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:12:55,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:12:55,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308733408] [2020-09-24 19:12:55,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:12:55,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:12:55,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:12:55,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:12:55,025 INFO L87 Difference]: Start difference. First operand 791 states and 923 transitions. Second operand 6 states. [2020-09-24 19:12:55,529 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:12:57,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:12:57,723 INFO L93 Difference]: Finished difference Result 1868 states and 2388 transitions. [2020-09-24 19:12:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:12:57,723 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-24 19:12:57,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:12:57,731 INFO L225 Difference]: With dead ends: 1868 [2020-09-24 19:12:57,731 INFO L226 Difference]: Without dead ends: 1187 [2020-09-24 19:12:57,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:12:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2020-09-24 19:12:57,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1001. [2020-09-24 19:12:57,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1001 states. [2020-09-24 19:12:57,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1194 transitions. [2020-09-24 19:12:57,874 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1194 transitions. Word has length 166 [2020-09-24 19:12:57,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:12:57,874 INFO L479 AbstractCegarLoop]: Abstraction has 1001 states and 1194 transitions. [2020-09-24 19:12:57,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:12:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1194 transitions. [2020-09-24 19:12:57,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-09-24 19:12:57,879 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:12:57,880 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:12:57,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:12:57,880 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:12:57,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:12:57,881 INFO L82 PathProgramCache]: Analyzing trace with hash -2058219486, now seen corresponding path program 1 times [2020-09-24 19:12:57,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:12:57,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189797856] [2020-09-24 19:12:57,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:12:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:57,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:58,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:58,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-09-24 19:12:58,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:12:58,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 19:12:58,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:58,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 151 [2020-09-24 19:12:58,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:12:58,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:59,277 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:12:59,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:12:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:59,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:59,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:12:59,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:59,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-24 19:12:59,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:59,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:59,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:59,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:59,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:59,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:12:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:59,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:59,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:59,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:59,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:59,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:59,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:59,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:59,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:59,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:59,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:12:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:59,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:59,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:59,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:59,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:12:59,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:59,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:59,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:59,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:59,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:12:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:59,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:59,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:12:59,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:59,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:12:59,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:59,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:59,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:59,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:59,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:59,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:12:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:59,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:59,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:12:59,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:59,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:12:59,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:12:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:12:59,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:59,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:12:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:59,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:59,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:12:59,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:12:59,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 19:12:59,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:59,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:12:59,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:12:59,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 19:12:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:59,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:59,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 19:12:59,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:59,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-24 19:12:59,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:59,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:59,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 19:12:59,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 19:12:59,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:12:59,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:12:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:12:59,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:12:59,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:12:59,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:12:59,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:12:59,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 19:12:59,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:12:59,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:12:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:12:59,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 19:12:59,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:00,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:13:00,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:00,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 19:13:00,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:13:00,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:00,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 19:13:00,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:00,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:00,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:13:00,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:00,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:00,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:00,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:00,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:00,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:00,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 19:13:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:13:00,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:13:00,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:13:00,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 19:13:00,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:00,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:00,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:00,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-09-24 19:13:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:00,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:00,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:13:00,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 19:13:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:00,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:00,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:00,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2020-09-24 19:13:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:00,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:00,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:00,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:00,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:00,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:00,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:00,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:00,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:00,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:00,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:00,421 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:13:00,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189797856] [2020-09-24 19:13:00,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:13:00,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:13:00,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581481872] [2020-09-24 19:13:00,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:13:00,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:00,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:13:00,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:13:00,426 INFO L87 Difference]: Start difference. First operand 1001 states and 1194 transitions. Second operand 9 states. [2020-09-24 19:13:00,967 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:01,803 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:13:04,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:04,189 INFO L93 Difference]: Finished difference Result 1833 states and 2269 transitions. [2020-09-24 19:13:04,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 19:13:04,190 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 247 [2020-09-24 19:13:04,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:04,196 INFO L225 Difference]: With dead ends: 1833 [2020-09-24 19:13:04,196 INFO L226 Difference]: Without dead ends: 942 [2020-09-24 19:13:04,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2020-09-24 19:13:04,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2020-09-24 19:13:04,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 699. [2020-09-24 19:13:04,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-09-24 19:13:04,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 809 transitions. [2020-09-24 19:13:04,305 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 809 transitions. Word has length 247 [2020-09-24 19:13:04,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:04,306 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 809 transitions. [2020-09-24 19:13:04,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:13:04,306 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 809 transitions. [2020-09-24 19:13:04,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-24 19:13:04,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:04,314 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:13:04,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:13:04,315 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:04,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:04,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1799315731, now seen corresponding path program 1 times [2020-09-24 19:13:04,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:04,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2013158523] [2020-09-24 19:13:04,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:04,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:04,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-09-24 19:13:05,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:05,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1023 [2020-09-24 19:13:05,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-24 19:13:05,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:05,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,711 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:05,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:05,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-24 19:13:05,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:05,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:05,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:05,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:05,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:05,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:05,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:05,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:05,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:13:05,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:05,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:05,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:05,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:05,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:05,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:13:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:05,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:05,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:05,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:05,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:05,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:05,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:05,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:05,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:13:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 19:13:06,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-24 19:13:06,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:06,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-09-24 19:13:06,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:06,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:13:06,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 19:13:06,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:06,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:13:06,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:06,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:13:06,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 19:13:06,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:13:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:13:06,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 19:13:06,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:13:06,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:13:06,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:13:06,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:13:06,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:06,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 19:13:06,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:06,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:13:06,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:06,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:06,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:06,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:06,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:06,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:13:06,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 19:13:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:13:06,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:13:06,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:13:06,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:06,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:06,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:06,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 19:13:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:06,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:06,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:13:06,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:06,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 19:13:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:06,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:06,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:13:06,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:13:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 19:13:06,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 19:13:06,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 19:13:06,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:13:06,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:06,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:06,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:06,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:06,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:06,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 19:13:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:06,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:06,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:06,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-09-24 19:13:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:06,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:06,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:06,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-09-24 19:13:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:06,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:06,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:06,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:06,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:06,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:06,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:06,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 19:13:06,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2013158523] [2020-09-24 19:13:06,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:13:06,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 19:13:06,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440681448] [2020-09-24 19:13:06,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 19:13:06,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:06,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 19:13:06,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-24 19:13:06,975 INFO L87 Difference]: Start difference. First operand 699 states and 809 transitions. Second operand 12 states. [2020-09-24 19:13:08,492 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:08,794 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:13:09,127 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:13:09,490 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:13:09,845 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:13:10,151 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:13:12,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:13:12,358 INFO L93 Difference]: Finished difference Result 1675 states and 2156 transitions. [2020-09-24 19:13:12,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 19:13:12,365 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 269 [2020-09-24 19:13:12,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:13:12,376 INFO L225 Difference]: With dead ends: 1675 [2020-09-24 19:13:12,377 INFO L226 Difference]: Without dead ends: 1086 [2020-09-24 19:13:12,380 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 19:13:12,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2020-09-24 19:13:12,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 715. [2020-09-24 19:13:12,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 715 states. [2020-09-24 19:13:12,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 826 transitions. [2020-09-24 19:13:12,490 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 826 transitions. Word has length 269 [2020-09-24 19:13:12,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:13:12,491 INFO L479 AbstractCegarLoop]: Abstraction has 715 states and 826 transitions. [2020-09-24 19:13:12,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 19:13:12,491 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 826 transitions. [2020-09-24 19:13:12,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-24 19:13:12,497 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:13:12,498 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:13:12,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:13:12,498 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:13:12,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:13:12,499 INFO L82 PathProgramCache]: Analyzing trace with hash -198055283, now seen corresponding path program 1 times [2020-09-24 19:13:12,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:13:12,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746285752] [2020-09-24 19:13:12,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:13:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:12,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:12,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:13,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:13,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-09-24 19:13:13,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:13:13,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-09-24 19:13:13,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:13,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 19:13:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:13,889 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:13:13,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:13:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:13,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:13:14,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 19:13:14,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:13:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:14,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:13:14,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:13:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:14,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:14,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:13:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:14,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:14,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:13:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:13:14,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:14,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:14,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 19:13:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:14,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:14,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:14,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 19:13:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-24 19:13:14,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-24 19:13:14,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 19:13:14,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:14,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:14,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 19:13:14,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 19:13:14,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 19:13:14,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:14,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 19:13:14,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 19:13:14,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:13:14,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:14,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:14,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:13:14,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 19:13:14,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:14,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:13:14,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:14,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:13:14,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 19:13:14,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:13:14,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:13:14,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:13:14,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:13:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:13:14,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:13:14,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:13:14,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:13:14,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:13:14,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:14,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:13:14,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:13:14,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:13:14,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 19:13:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 19:13:14,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:13:14,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 19:13:14,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:14,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:14,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 19:13:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:14,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:13:14,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 19:13:14,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-24 19:13:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:13:14,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:13:14,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 19:13:14,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:13:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 19:13:14,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:13:14,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-09-24 19:13:14,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:13:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:13:14,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:14,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:13:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:14,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:14,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-24 19:13:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:13:14,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:14,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:13:14,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-09-24 19:13:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:14,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:14,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:14,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-09-24 19:13:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:13:14,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:13:14,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:13:14,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:13:14,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:13:14,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:13:14,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:13:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:13:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:13:14,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:13:14,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:13:14,775 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 19:13:14,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746285752] [2020-09-24 19:13:14,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 19:13:14,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 19:13:14,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357042897] [2020-09-24 19:13:14,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 19:13:14,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:13:14,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 19:13:14,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-09-24 19:13:14,781 INFO L87 Difference]: Start difference. First operand 715 states and 826 transitions. Second operand 11 states. [2020-09-24 19:13:16,067 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:16,369 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:13:16,713 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:13:17,055 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189