/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --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_spec1_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:45:34,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:45:34,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:45:34,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:45:34,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:45:34,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:45:34,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:45:34,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:45:34,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:45:34,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:45:34,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:45:34,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:45:34,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:45:34,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:45:34,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:45:34,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:45:34,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:45:34,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:45:34,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:45:34,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:45:34,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:45:34,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:45:34,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:45:34,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:45:34,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:45:34,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:45:34,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:45:34,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:45:34,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:45:34,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:45:34,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:45:34,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:45:34,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:45:34,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:45:34,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:45:34,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:45:34,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:45:34,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:45:34,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:45:34,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:45:34,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:45:34,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:45:34,413 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:45:34,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:45:34,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:45:34,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:45:34,416 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:45:34,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:45:34,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:45:34,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:45:34,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:45:34,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:45:34,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:45:34,419 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:45:34,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:45:34,420 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:45:34,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:45:34,420 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:45:34,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:45:34,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:45:34,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:45:34,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:45:34,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:45:34,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:45:34,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:45:34,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:45:34,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:45:34,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:45:34,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:45:34,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:45:34,423 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:45:34,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:45:34,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:45:34,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:45:34,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:45:34,888 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:45:34,888 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:45:34,889 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 01:45:34,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1250a7f49/fcd644d7861a4962a0203d1deb116f25/FLAG57b07dd5f [2020-09-25 01:45:35,590 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:45:35,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-09-25 01:45:35,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1250a7f49/fcd644d7861a4962a0203d1deb116f25/FLAG57b07dd5f [2020-09-25 01:45:35,874 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1250a7f49/fcd644d7861a4962a0203d1deb116f25 [2020-09-25 01:45:35,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:45:35,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:45:35,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:45:35,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:45:35,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:45:35,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:45:35" (1/1) ... [2020-09-25 01:45:35,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2970dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:35, skipping insertion in model container [2020-09-25 01:45:35,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:45:35" (1/1) ... [2020-09-25 01:45:35,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:45:35,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:45:36,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:45:36,504 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:45:36,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:45:36,656 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:45:36,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36 WrapperNode [2020-09-25 01:45:36,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:45:36,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:45:36,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:45:36,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:45:36,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36" (1/1) ... [2020-09-25 01:45:36,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36" (1/1) ... [2020-09-25 01:45:36,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36" (1/1) ... [2020-09-25 01:45:36,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36" (1/1) ... [2020-09-25 01:45:36,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36" (1/1) ... [2020-09-25 01:45:36,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36" (1/1) ... [2020-09-25 01:45:36,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36" (1/1) ... [2020-09-25 01:45:36,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:45:36,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:45:36,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:45:36,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:45:36,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:45:36,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:45:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:45:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:45:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:45:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:45:36,864 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:45:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:45:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:45:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:45:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:45:36,865 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:45:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:45:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:45:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:45:36,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:45:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:45:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:45:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:45:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:45:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:45:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:45:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:45:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:45:36,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:45:36,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:45:36,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:45:36,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:45:36,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:45:36,871 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:45:36,871 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:45:36,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:45:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:45:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:45:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:45:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:45:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:45:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:45:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:45:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:45:36,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:45:36,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:45:36,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:45:36,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:45:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:45:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:45:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:45:36,875 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:45:36,876 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:45:36,876 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:45:36,876 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:45:36,876 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:45:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:45:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:45:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:45:36,877 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:45:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:45:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:45:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 01:45:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:45:36,878 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:45:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:45:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:45:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:45:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:45:36,879 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:45:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:45:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:45:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:45:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:45:36,880 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:45:36,881 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:45:36,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:45:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:45:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:45:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:45:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:45:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:45:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:45:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:45:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:45:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:45:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:45:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:45:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:45:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:45:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:45:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:45:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:45:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:45:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:45:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:45:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:45:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:45:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:45:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:45:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:45:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:45:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:45:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:45:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:45:38,257 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:45:38,257 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:45:38,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:45:38 BoogieIcfgContainer [2020-09-25 01:45:38,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:45:38,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:45:38,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:45:38,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:45:38,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:45:35" (1/3) ... [2020-09-25 01:45:38,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b54dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:45:38, skipping insertion in model container [2020-09-25 01:45:38,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:45:36" (2/3) ... [2020-09-25 01:45:38,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b54dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:45:38, skipping insertion in model container [2020-09-25 01:45:38,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:45:38" (3/3) ... [2020-09-25 01:45:38,276 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2020-09-25 01:45:38,290 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:45:38,302 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:45:38,328 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:45:38,365 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:45:38,366 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:45:38,366 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:45:38,366 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:45:38,366 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:45:38,366 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:45:38,366 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:45:38,367 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:45:38,399 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states. [2020-09-25 01:45:38,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:45:38,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:38,423 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] [2020-09-25 01:45:38,424 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:38,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:38,435 INFO L82 PathProgramCache]: Analyzing trace with hash 978294910, now seen corresponding path program 1 times [2020-09-25 01:45:38,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:38,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1531455529] [2020-09-25 01:45:38,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:39,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:39,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:40,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:41,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:42,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:43,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:43,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:45:43,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:43,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 01:45:43,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:43,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:43,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:45:43,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 01:45:44,429 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:44,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:44,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:44,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:44,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:44,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:44,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 01:45:44,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:44,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:44,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:44,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:44,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:44,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:44,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:44,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:44,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:45:44,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:44,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:44,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:44,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:44,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:44,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:44,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:44,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:44,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:44,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:44,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:44,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:44,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:44,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:44,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:44,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:44,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:44,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:44,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:44,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:44,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:44,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:44,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:44,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:44,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:44,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:44,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:44,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:44,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:44,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:44,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:44,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:45:44,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:44,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:44,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:44,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:44,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:44,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:45:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:44,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:44,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:44,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:44,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:44,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:44,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:44,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:45:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:44,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:44,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:44,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:44,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:44,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 01:45:44,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:44,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:44,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:45:44,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:45:44,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1531455529] [2020-09-25 01:45:44,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:44,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:45:44,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55166768] [2020-09-25 01:45:44,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:45:44,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:44,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:45:44,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:45:44,888 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 3 states. [2020-09-25 01:45:47,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:47,125 INFO L93 Difference]: Finished difference Result 560 states and 667 transitions. [2020-09-25 01:45:47,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:45:47,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:45:47,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:47,164 INFO L225 Difference]: With dead ends: 560 [2020-09-25 01:45:47,164 INFO L226 Difference]: Without dead ends: 340 [2020-09-25 01:45:47,175 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 [2020-09-25 01:45:47,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-09-25 01:45:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 294. [2020-09-25 01:45:47,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-09-25 01:45:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 323 transitions. [2020-09-25 01:45:47,336 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 323 transitions. Word has length 142 [2020-09-25 01:45:47,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:47,337 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 323 transitions. [2020-09-25 01:45:47,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:45:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 323 transitions. [2020-09-25 01:45:47,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:45:47,347 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:47,348 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] [2020-09-25 01:45:47,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:45:47,348 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:47,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:47,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1922789208, now seen corresponding path program 1 times [2020-09-25 01:45:47,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:47,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053005457] [2020-09-25 01:45:47,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:47,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:47,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:49,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:49,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:51,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:52,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:52,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:45:52,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:45:52,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 01:45:52,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:52,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:45:52,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:45:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:52,751 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:45:52,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:45:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:52,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:52,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:52,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:45:52,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:52,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 01:45:52,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:52,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:52,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:52,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:52,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:45:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:52,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:52,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:52,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:52,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:52,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:52,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:52,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:52,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:52,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:52,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:52,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:45:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:52,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:52,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:52,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:52,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:52,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:45:52,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:52,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:52,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:52,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:52,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:45:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:52,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:52,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:52,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:52,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:45:52,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:45:52,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:45:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:52,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:52,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:52,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:45:52,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:52,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:52,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:45:52,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:52,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:52,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:45:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:52,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:52,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:52,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:52,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:52,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:45:52,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:52,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:52,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:52,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:45:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:52,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:52,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:52,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:45:52,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:45:52,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:45:52,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:45:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:45:52,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:45:52,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:45:53,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:45:53,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053005457] [2020-09-25 01:45:53,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:45:53,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:45:53,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381953719] [2020-09-25 01:45:53,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:45:53,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:45:53,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:45:53,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:45:53,016 INFO L87 Difference]: Start difference. First operand 294 states and 323 transitions. Second operand 4 states. [2020-09-25 01:45:53,623 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:45:54,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:45:54,813 INFO L93 Difference]: Finished difference Result 473 states and 538 transitions. [2020-09-25 01:45:54,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:45:54,816 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:45:54,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:45:54,821 INFO L225 Difference]: With dead ends: 473 [2020-09-25 01:45:54,822 INFO L226 Difference]: Without dead ends: 323 [2020-09-25 01:45:54,827 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 [2020-09-25 01:45:54,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2020-09-25 01:45:54,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 284. [2020-09-25 01:45:54,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 01:45:54,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 310 transitions. [2020-09-25 01:45:54,893 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 310 transitions. Word has length 143 [2020-09-25 01:45:54,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:45:54,893 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 310 transitions. [2020-09-25 01:45:54,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:45:54,894 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 310 transitions. [2020-09-25 01:45:54,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:45:54,897 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:45:54,897 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] [2020-09-25 01:45:54,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:45:54,898 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:45:54,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:45:54,898 INFO L82 PathProgramCache]: Analyzing trace with hash -312592452, now seen corresponding path program 1 times [2020-09-25 01:45:54,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:45:54,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300849151] [2020-09-25 01:45:54,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:45:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:45:55,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:55,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:55,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:56,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:45:59,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:45:59,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:45:59,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:45:59,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 01:45:59,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:45:59,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:45:59,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:45:59,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:45:59,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:00,287 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:46:00,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:46:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:00,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:00,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:00,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:46:00,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:00,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 01:46:00,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:00,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:00,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:00,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:00,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:00,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:46:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:00,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:00,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:00,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:00,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:46:00,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:00,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:00,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:00,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:46:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:00,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:00,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:00,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:00,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:00,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:46:00,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:00,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:00,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:00,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:46:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:00,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:00,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:00,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:46:00,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:00,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:46:00,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:00,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:00,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:00,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:00,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:00,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:46:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:00,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:00,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:00,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:00,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:00,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:46:00,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:00,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:00,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:00,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:00,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:46:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:00,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:00,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:00,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:46:00,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:00,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:46:00,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:46:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:00,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:46:00,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:00,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:46:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:00,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:00,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:00,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:46:00,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:00,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:46:00,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:00,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:00,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:46:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:00,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:00,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:46:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:00,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:00,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:00,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:46:00,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:00,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:46:00,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:00,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:00,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:46:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:00,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:46:00,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300849151] [2020-09-25 01:46:00,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:46:00,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:46:00,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109044831] [2020-09-25 01:46:00,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:46:00,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:46:00,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:46:00,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:46:00,525 INFO L87 Difference]: Start difference. First operand 284 states and 310 transitions. Second operand 5 states. [2020-09-25 01:46:01,066 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:46:02,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:46:02,414 INFO L93 Difference]: Finished difference Result 519 states and 600 transitions. [2020-09-25 01:46:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:46:02,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:46:02,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:46:02,419 INFO L225 Difference]: With dead ends: 519 [2020-09-25 01:46:02,419 INFO L226 Difference]: Without dead ends: 345 [2020-09-25 01:46:02,421 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 [2020-09-25 01:46:02,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-25 01:46:02,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 284. [2020-09-25 01:46:02,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 284 states. [2020-09-25 01:46:02,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 309 transitions. [2020-09-25 01:46:02,467 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 309 transitions. Word has length 156 [2020-09-25 01:46:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:46:02,468 INFO L479 AbstractCegarLoop]: Abstraction has 284 states and 309 transitions. [2020-09-25 01:46:02,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:46:02,469 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 309 transitions. [2020-09-25 01:46:02,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 01:46:02,471 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:46:02,471 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:46:02,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:46:02,472 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:46:02,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:46:02,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1643670934, now seen corresponding path program 1 times [2020-09-25 01:46:02,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:46:02,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998983952] [2020-09-25 01:46:02,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:46:02,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:02,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:02,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:02,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:03,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:05,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:06,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:07,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:07,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:07,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:07,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 01:46:07,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 01:46:07,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 01:46:07,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:46:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 01:46:07,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:46:07,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:07,862 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:46:07,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:46:07,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:07,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:07,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:07,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:46:08,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 01:46:08,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:08,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:08,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:08,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:46:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:08,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:46:08,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:08,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:08,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:46:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:08,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:46:08,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:08,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:46:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:46:08,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:46:08,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:08,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:08,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:08,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:46:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:08,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:46:08,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:08,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:46:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:46:08,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:46:08,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:08,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:46:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 01:46:08,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:46:08,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 01:46:08,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:46:08,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-25 01:46:08,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:46:08,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:46:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:46:08,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:46:08,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:46:08,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 01:46:08,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:46:08,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:46:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:46:08,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:46:08,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:46:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:46:08,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:46:08,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 01:46:08,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:46:08,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:08,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:46:08,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:46:08,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:08,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:46:08,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:08,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 01:46:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:46:08,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:46:08,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:08,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:46:08,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:08,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-25 01:46:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:08,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:08,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:08,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:46:08,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:46:08,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:46:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:46:08,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998983952] [2020-09-25 01:46:08,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:46:08,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:46:08,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206915557] [2020-09-25 01:46:08,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:46:08,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:46:08,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:46:08,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:46:08,285 INFO L87 Difference]: Start difference. First operand 284 states and 309 transitions. Second operand 8 states. [2020-09-25 01:46:08,801 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:46:10,443 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:46:11,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:46:11,775 INFO L93 Difference]: Finished difference Result 713 states and 845 transitions. [2020-09-25 01:46:11,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 01:46:11,776 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-09-25 01:46:11,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:46:11,781 INFO L225 Difference]: With dead ends: 713 [2020-09-25 01:46:11,781 INFO L226 Difference]: Without dead ends: 539 [2020-09-25 01:46:11,783 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:46:11,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-09-25 01:46:11,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 412. [2020-09-25 01:46:11,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-09-25 01:46:11,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 444 transitions. [2020-09-25 01:46:11,848 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 444 transitions. Word has length 174 [2020-09-25 01:46:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:46:11,849 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 444 transitions. [2020-09-25 01:46:11,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:46:11,849 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 444 transitions. [2020-09-25 01:46:11,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 01:46:11,851 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:46:11,852 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:46:11,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:46:11,852 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:46:11,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:46:11,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1767633038, now seen corresponding path program 1 times [2020-09-25 01:46:11,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:46:11,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383482723] [2020-09-25 01:46:11,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:46:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:11,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:12,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:12,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:13,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:13,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:13,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:16,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:16,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-25 01:46:16,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 01:46:16,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 01:46:16,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:46:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 168 [2020-09-25 01:46:16,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 01:46:16,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:17,309 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:46:17,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:46:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:17,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:17,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:46:17,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:17,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-25 01:46:17,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:17,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:17,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:17,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:17,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:46:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:17,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:17,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:17,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:17,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:46:17,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:17,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:17,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:17,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:17,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:17,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:46:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:17,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:17,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:17,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:17,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:46:17,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:17,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:17,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:17,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:17,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:17,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:46:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:17,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:17,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:46:17,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:17,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:46:17,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:17,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:17,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:17,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:17,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:17,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:46:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:17,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:17,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:17,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:46:17,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:17,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:17,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:17,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:17,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:46:17,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:17,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:17,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:46:17,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:17,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:46:17,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:17,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:17,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:17,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:17,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:46:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:17,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:17,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 01:46:17,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:46:17,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-25 01:46:17,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:46:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:17,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 01:46:17,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:17,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:46:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:17,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:17,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:18,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:18,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 01:46:18,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:46:18,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-25 01:46:18,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:18,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:46:18,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:18,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:46:18,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:18,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:46:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:18,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:18,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:18,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:18,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:46:18,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:46:18,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-25 01:46:18,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:46:18,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:18,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:46:18,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:18,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:46:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:18,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:18,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:18,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:46:18,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:18,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 01:46:18,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:46:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:18,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 01:46:18,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:18,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:46:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:18,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:18,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:18,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:46:18,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:18,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:46:18,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:18,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:46:18,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:18,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:46:18,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:18,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:46:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:18,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:18,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:18,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:46:18,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:18,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:46:18,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:18,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:46:18,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:18,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:46:18,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:18,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2020-09-25 01:46:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:18,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:18,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:18,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:46:18,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:18,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:46:18,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:18,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:46:18,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:18,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:46:18,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:46:18,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 01:46:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:46:18,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:46:18,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:46:18,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:46:18,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:46:18,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:46:18,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:46:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:46:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:46:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:46:18,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:46:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:46:18,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383482723] [2020-09-25 01:46:18,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:46:18,321 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:46:18,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924945533] [2020-09-25 01:46:18,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:46:18,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:46:18,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:46:18,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:46:18,323 INFO L87 Difference]: Start difference. First operand 412 states and 444 transitions. Second operand 10 states. [2020-09-25 01:46:18,835 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:46:20,589 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190