/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 17:48:37,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 17:48:37,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 17:48:37,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 17:48:37,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 17:48:37,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 17:48:37,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 17:48:37,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 17:48:37,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 17:48:37,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 17:48:37,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 17:48:37,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 17:48:37,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 17:48:37,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 17:48:37,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 17:48:37,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 17:48:37,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 17:48:37,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 17:48:37,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 17:48:37,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 17:48:37,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 17:48:37,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 17:48:37,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 17:48:37,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 17:48:37,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 17:48:37,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 17:48:37,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 17:48:37,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 17:48:37,764 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 17:48:37,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 17:48:37,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 17:48:37,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 17:48:37,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 17:48:37,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 17:48:37,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 17:48:37,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 17:48:37,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 17:48:37,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 17:48:37,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 17:48:37,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 17:48:37,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 17:48:37,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-12 17:48:37,794 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 17:48:37,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 17:48:37,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 17:48:37,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 17:48:37,796 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 17:48:37,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 17:48:37,796 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 17:48:37,796 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 17:48:37,796 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 17:48:37,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 17:48:37,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 17:48:37,797 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 17:48:37,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 17:48:37,797 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 17:48:37,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 17:48:37,798 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 17:48:37,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 17:48:37,798 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 17:48:37,798 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 17:48:37,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 17:48:37,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 17:48:37,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:48:37,799 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 17:48:37,799 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 17:48:37,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 17:48:37,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 17:48:37,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 17:48:37,800 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 17:48:37,800 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 17:48:37,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 17:48:38,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 17:48:38,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 17:48:38,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 17:48:38,113 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 17:48:38,113 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 17:48:38,114 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-12 17:48:38,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9a5628ca/bcca67c46add4e4b979abf5ad2dff271/FLAGd8e086058 [2020-10-12 17:48:38,727 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 17:48:38,728 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product55.cil.c [2020-10-12 17:48:38,743 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9a5628ca/bcca67c46add4e4b979abf5ad2dff271/FLAGd8e086058 [2020-10-12 17:48:39,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b9a5628ca/bcca67c46add4e4b979abf5ad2dff271 [2020-10-12 17:48:39,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 17:48:39,089 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 17:48:39,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 17:48:39,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 17:48:39,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 17:48:39,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:48:39" (1/1) ... [2020-10-12 17:48:39,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6faa959a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39, skipping insertion in model container [2020-10-12 17:48:39,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:48:39" (1/1) ... [2020-10-12 17:48:39,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 17:48:39,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 17:48:39,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:48:39,671 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 17:48:39,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 17:48:39,788 INFO L208 MainTranslator]: Completed translation [2020-10-12 17:48:39,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39 WrapperNode [2020-10-12 17:48:39,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 17:48:39,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 17:48:39,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 17:48:39,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 17:48:39,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39" (1/1) ... [2020-10-12 17:48:39,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39" (1/1) ... [2020-10-12 17:48:39,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39" (1/1) ... [2020-10-12 17:48:39,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39" (1/1) ... [2020-10-12 17:48:39,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39" (1/1) ... [2020-10-12 17:48:39,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39" (1/1) ... [2020-10-12 17:48:39,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39" (1/1) ... [2020-10-12 17:48:39,916 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 17:48:39,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 17:48:39,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 17:48:39,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 17:48:39,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 17:48:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 17:48:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 17:48:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-12 17:48:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-12 17:48:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-12 17:48:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-12 17:48:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-12 17:48:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-12 17:48:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-12 17:48:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-12 17:48:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-12 17:48:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-12 17:48:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-12 17:48:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-12 17:48:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-12 17:48:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-12 17:48:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-12 17:48:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-12 17:48:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-12 17:48:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-12 17:48:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-12 17:48:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-12 17:48:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-12 17:48:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-12 17:48:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-12 17:48:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-12 17:48:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-12 17:48:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-12 17:48:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-12 17:48:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-12 17:48:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-12 17:48:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-12 17:48:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-12 17:48:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-12 17:48:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 17:48:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-12 17:48:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-12 17:48:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-12 17:48:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-12 17:48:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-12 17:48:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-12 17:48:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-12 17:48:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 17:48:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 17:48:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-12 17:48:39,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-12 17:48:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-12 17:48:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-12 17:48:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-12 17:48:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-12 17:48:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-12 17:48:39,996 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-12 17:48:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-12 17:48:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-12 17:48:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-12 17:48:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-12 17:48:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-12 17:48:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-12 17:48:39,997 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-12 17:48:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-12 17:48:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-12 17:48:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-12 17:48:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-12 17:48:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-12 17:48:39,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-12 17:48:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-12 17:48:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-12 17:48:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-12 17:48:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-12 17:48:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-12 17:48:39,999 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-12 17:48:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-12 17:48:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-12 17:48:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-12 17:48:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-12 17:48:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-12 17:48:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-12 17:48:40,000 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-12 17:48:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 17:48:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-12 17:48:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-12 17:48:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-12 17:48:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-12 17:48:40,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-12 17:48:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-12 17:48:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-12 17:48:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-12 17:48:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-12 17:48:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-12 17:48:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-12 17:48:40,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-12 17:48:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-12 17:48:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-12 17:48:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-12 17:48:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-12 17:48:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 17:48:40,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-12 17:48:40,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 17:48:41,071 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 17:48:41,071 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-12 17:48:41,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:48:41 BoogieIcfgContainer [2020-10-12 17:48:41,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 17:48:41,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 17:48:41,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 17:48:41,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 17:48:41,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:48:39" (1/3) ... [2020-10-12 17:48:41,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4d209c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:48:41, skipping insertion in model container [2020-10-12 17:48:41,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:48:39" (2/3) ... [2020-10-12 17:48:41,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4d209c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:48:41, skipping insertion in model container [2020-10-12 17:48:41,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:48:41" (3/3) ... [2020-10-12 17:48:41,086 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2020-10-12 17:48:41,097 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 17:48:41,106 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 17:48:41,121 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 17:48:41,149 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 17:48:41,149 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 17:48:41,150 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 17:48:41,150 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 17:48:41,150 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 17:48:41,150 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 17:48:41,150 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 17:48:41,150 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 17:48:41,178 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states. [2020-10-12 17:48:41,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-12 17:48:41,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:41,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:48:41,199 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:41,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:41,209 INFO L82 PathProgramCache]: Analyzing trace with hash 616057763, now seen corresponding path program 1 times [2020-10-12 17:48:41,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:41,216 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280569931] [2020-10-12 17:48:41,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:41,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:41,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:42,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:42,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:43,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:46,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:46,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-12 17:48:46,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 17:48:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-12 17:48:46,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-12 17:48:46,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:46,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-12 17:48:46,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-10-12 17:48:46,944 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:46,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:46,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:47,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:47,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:47,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:47,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 17:48:47,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:47,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:47,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:48:47,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:47,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:47,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:47,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:47,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:47,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:47,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 17:48:47,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:47,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:47,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:47,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:47,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:47,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:47,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:47,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:47,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:47,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:47,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:47,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:47,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:47,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:47,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:47,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:47,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:47,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:47,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:47,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:47,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:47,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:48:47,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:47,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:47,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:47,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:47,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:47,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:47,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:47,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:47,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:47,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:48:47,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:47,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:47,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-12 17:48:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:47,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:47,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:47,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:47,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:47,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:47,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:47,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:47,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:47,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-12 17:48:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:47,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:47,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:47,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:47,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 17:48:47,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:47,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:47,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:47,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:47,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:48:47,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280569931] [2020-10-12 17:48:47,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:48:47,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 17:48:47,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745826937] [2020-10-12 17:48:47,244 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 17:48:47,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:47,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 17:48:47,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:48:47,292 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 7 states. [2020-10-12 17:48:47,798 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:48,931 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-10-12 17:48:49,219 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:49,467 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:48:50,156 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 17:48:50,456 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:48:52,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:48:52,004 INFO L93 Difference]: Finished difference Result 452 states and 640 transitions. [2020-10-12 17:48:52,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 17:48:52,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2020-10-12 17:48:52,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:48:52,022 INFO L225 Difference]: With dead ends: 452 [2020-10-12 17:48:52,023 INFO L226 Difference]: Without dead ends: 281 [2020-10-12 17:48:52,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2020-10-12 17:48:52,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-12 17:48:52,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 229. [2020-10-12 17:48:52,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-10-12 17:48:52,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 285 transitions. [2020-10-12 17:48:52,185 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 285 transitions. Word has length 46 [2020-10-12 17:48:52,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:48:52,186 INFO L479 AbstractCegarLoop]: Abstraction has 229 states and 285 transitions. [2020-10-12 17:48:52,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 17:48:52,186 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 285 transitions. [2020-10-12 17:48:52,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-12 17:48:52,191 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:48:52,191 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] [2020-10-12 17:48:52,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 17:48:52,192 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:48:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:48:52,192 INFO L82 PathProgramCache]: Analyzing trace with hash -719745665, now seen corresponding path program 1 times [2020-10-12 17:48:52,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:48:52,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [268363314] [2020-10-12 17:48:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:48:52,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:52,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:52,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:52,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-12 17:48:57,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 17:48:57,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-12 17:48:57,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 17:48:57,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:57,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-12 17:48:57,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,477 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:48:57,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:48:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 17:48:57,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:48:57,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:57,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:48:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:57,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:57,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:48:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:57,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:57,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:57,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:48:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:57,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:57,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:48:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:48:57,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:57,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:48:57,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:48:57,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-12 17:48:57,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 17:48:57,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:48:57,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 17:48:57,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:57,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-12 17:48:57,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:57,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:48:57,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-12 17:48:57,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-12 17:48:57,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:57,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:48:57,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 17:48:57,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-12 17:48:57,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-12 17:48:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 17:48:57,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:57,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:48:57,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:48:57,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-12 17:48:57,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-12 17:48:57,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:48:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:48:57,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:57,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:57,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:48:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:48:57,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:57,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:57,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:48:57,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-12 17:48:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:48:57,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:48:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:48:57,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:48:57,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 17:48:57,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-12 17:48:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:48:57,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:48:57,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:48:57,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:48:57,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:48:57,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:48:57,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:48:57,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:48:57,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:48:57,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:48:57,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:48:57,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:48:57,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [268363314] [2020-10-12 17:48:57,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:48:57,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-12 17:48:57,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562621953] [2020-10-12 17:48:57,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 17:48:57,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:48:57,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 17:48:57,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-12 17:48:57,972 INFO L87 Difference]: Start difference. First operand 229 states and 285 transitions. Second operand 12 states. [2020-10-12 17:48:58,657 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:48:59,625 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-10-12 17:48:59,971 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:00,251 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:00,680 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:49:01,032 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:49:01,300 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:49:01,592 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-10-12 17:49:01,921 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:02,188 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 17:49:02,569 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:02,850 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-12 17:49:03,194 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-12 17:49:03,487 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-12 17:49:05,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:49:05,444 INFO L93 Difference]: Finished difference Result 776 states and 1123 transitions. [2020-10-12 17:49:05,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-12 17:49:05,450 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 80 [2020-10-12 17:49:05,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:49:05,458 INFO L225 Difference]: With dead ends: 776 [2020-10-12 17:49:05,458 INFO L226 Difference]: Without dead ends: 527 [2020-10-12 17:49:05,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=135, Invalid=621, Unknown=0, NotChecked=0, Total=756 [2020-10-12 17:49:05,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-10-12 17:49:05,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 417. [2020-10-12 17:49:05,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-10-12 17:49:05,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 513 transitions. [2020-10-12 17:49:05,639 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 513 transitions. Word has length 80 [2020-10-12 17:49:05,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:49:05,640 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 513 transitions. [2020-10-12 17:49:05,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 17:49:05,640 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 513 transitions. [2020-10-12 17:49:05,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-12 17:49:05,653 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:49:05,654 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 17:49:05,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 17:49:05,654 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:49:05,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:49:05,655 INFO L82 PathProgramCache]: Analyzing trace with hash -688360950, now seen corresponding path program 1 times [2020-10-12 17:49:05,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:49:05,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934129885] [2020-10-12 17:49:05,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:49:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:05,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:05,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:06,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:06,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:06,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:06,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:06,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:07,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:10,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:10,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-12 17:49:10,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-12 17:49:10,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 17:49:10,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 17:49:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:10,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-12 17:49:10,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:10,963 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:49:10,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:49:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:10,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:11,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 17:49:11,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:11,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:49:11,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:49:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:11,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:11,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:11,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:49:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:11,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:11,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:11,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:49:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:11,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:11,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:11,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:49:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:11,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:11,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:11,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:11,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:49:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:11,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:11,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:11,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:11,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-12 17:49:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 17:49:11,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 17:49:11,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:11,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-12 17:49:11,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-12 17:49:11,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:49:11,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 17:49:11,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:11,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 17:49:11,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:49:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:11,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:11,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-12 17:49:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 17:49:11,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:49:11,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-12 17:49:11,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:11,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-12 17:49:11,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:11,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:11,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:49:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:11,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:11,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:11,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:11,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-12 17:49:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 17:49:11,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 17:49:11,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 17:49:11,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:49:11,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 17:49:11,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:11,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:49:11,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-12 17:49:11,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:49:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-12 17:49:11,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:11,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:49:11,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 17:49:11,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:49:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 17:49:11,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:11,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:49:11,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 17:49:11,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 17:49:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-12 17:49:11,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:11,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:11,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:49:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:49:11,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 17:49:11,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 17:49:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:11,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:11,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:49:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:11,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:11,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:11,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:11,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:11,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-10-12 17:49:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:11,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:11,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:11,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:11,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:11,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-12 17:49:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:11,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:11,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:11,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:11,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:11,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:11,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:11,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:11,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-12 17:49:11,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934129885] [2020-10-12 17:49:11,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 17:49:11,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 17:49:11,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995196146] [2020-10-12 17:49:11,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-12 17:49:11,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:49:11,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-12 17:49:11,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-12 17:49:11,368 INFO L87 Difference]: Start difference. First operand 417 states and 513 transitions. Second operand 11 states. [2020-10-12 17:49:11,994 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:49:12,718 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:49:13,150 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:13,428 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:13,720 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-12 17:49:14,048 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:49:14,368 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:49:14,683 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-12 17:49:18,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:49:18,184 INFO L93 Difference]: Finished difference Result 1567 states and 2300 transitions. [2020-10-12 17:49:18,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 17:49:18,185 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 126 [2020-10-12 17:49:18,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:49:18,197 INFO L225 Difference]: With dead ends: 1567 [2020-10-12 17:49:18,197 INFO L226 Difference]: Without dead ends: 1174 [2020-10-12 17:49:18,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=179, Invalid=577, Unknown=0, NotChecked=0, Total=756 [2020-10-12 17:49:18,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2020-10-12 17:49:18,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 807. [2020-10-12 17:49:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-10-12 17:49:18,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 998 transitions. [2020-10-12 17:49:18,360 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 998 transitions. Word has length 126 [2020-10-12 17:49:18,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:49:18,360 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 998 transitions. [2020-10-12 17:49:18,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-12 17:49:18,361 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 998 transitions. [2020-10-12 17:49:18,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-12 17:49:18,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:49:18,364 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] [2020-10-12 17:49:18,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 17:49:18,364 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:49:18,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:49:18,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1039639525, now seen corresponding path program 1 times [2020-10-12 17:49:18,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:49:18,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881989843] [2020-10-12 17:49:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:49:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:18,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:18,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:18,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 17:49:18,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:18,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-10-12 17:49:18,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:18,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 17:49:18,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:18,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-12 17:49:18,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,143 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-12 17:49:19,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 17:49:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:19,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-12 17:49:19,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 17:49:19,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-12 17:49:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:19,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:19,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:19,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:19,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-12 17:49:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:19,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:19,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:19,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-12 17:49:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:19,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:19,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:19,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-12 17:49:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-12 17:49:19,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:19,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-12 17:49:19,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-12 17:49:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:19,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:19,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:19,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:19,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-12 17:49:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-12 17:49:19,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 17:49:19,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-12 17:49:19,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-12 17:49:19,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-12 17:49:19,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 17:49:19,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-12 17:49:19,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-12 17:49:19,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-12 17:49:19,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-12 17:49:19,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:19,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-12 17:49:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-12 17:49:19,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 17:49:19,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 17:49:19,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-12 17:49:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-12 17:49:19,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:19,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-12 17:49:19,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-12 17:49:19,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:19,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 17:49:19,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 17:49:19,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 17:49:19,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-12 17:49:19,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 17:49:19,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-12 17:49:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:19,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:19,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:19,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:19,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:19,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-12 17:49:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 17:49:19,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 17:49:19,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 17:49:19,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 17:49:19,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 17:49:19,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 17:49:19,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 17:49:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 17:49:19,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 17:49:19,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 17:49:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 17:49:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 17:49:19,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881989843] [2020-10-12 17:49:19,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 17:49:19,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-12 17:49:19,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643482093] [2020-10-12 17:49:19,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 17:49:19,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 17:49:19,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 17:49:19,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-12 17:49:19,495 INFO L87 Difference]: Start difference. First operand 807 states and 998 transitions. Second operand 7 states. [2020-10-12 17:49:19,921 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:49:20,484 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-12 17:49:23,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 17:49:23,846 INFO L93 Difference]: Finished difference Result 2730 states and 3832 transitions. [2020-10-12 17:49:23,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 17:49:23,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-12 17:49:23,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 17:49:23,865 INFO L225 Difference]: With dead ends: 2730 [2020-10-12 17:49:23,866 INFO L226 Difference]: Without dead ends: 1929 [2020-10-12 17:49:23,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-12 17:49:23,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1929 states. [2020-10-12 17:49:24,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1929 to 1629. [2020-10-12 17:49:24,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1629 states. [2020-10-12 17:49:24,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2090 transitions. [2020-10-12 17:49:24,252 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2090 transitions. Word has length 88 [2020-10-12 17:49:24,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 17:49:24,252 INFO L479 AbstractCegarLoop]: Abstraction has 1629 states and 2090 transitions. [2020-10-12 17:49:24,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 17:49:24,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2090 transitions. [2020-10-12 17:49:24,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-12 17:49:24,261 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 17:49:24,262 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] [2020-10-12 17:49:24,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 17:49:24,262 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 17:49:24,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 17:49:24,262 INFO L82 PathProgramCache]: Analyzing trace with hash 745790239, now seen corresponding path program 1 times [2020-10-12 17:49:24,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 17:49:24,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047228813] [2020-10-12 17:49:24,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 17:49:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-12 17:49:24,297 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-12 17:49:24,298 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-12 17:49:24,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 17:49:24,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:49:24 BoogieIcfgContainer [2020-10-12 17:49:24,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 17:49:24,343 INFO L168 Benchmark]: Toolchain (without parser) took 45253.71 ms. Allocated memory was 140.0 MB in the beginning and 767.0 MB in the end (delta: 627.0 MB). Free memory was 101.9 MB in the beginning and 237.9 MB in the end (delta: -136.1 MB). Peak memory consumption was 491.0 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:24,350 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-12 17:49:24,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.44 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 168.1 MB in the end (delta: -66.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:24,352 INFO L168 Benchmark]: Boogie Preprocessor took 126.78 ms. Allocated memory is still 202.9 MB. Free memory was 168.1 MB in the beginning and 164.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:24,353 INFO L168 Benchmark]: RCFGBuilder took 1160.08 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 164.0 MB in the beginning and 189.1 MB in the end (delta: -25.1 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:24,355 INFO L168 Benchmark]: TraceAbstraction took 43261.85 ms. Allocated memory was 235.4 MB in the beginning and 767.0 MB in the end (delta: 531.6 MB). Free memory was 189.1 MB in the beginning and 237.9 MB in the end (delta: -48.8 MB). Peak memory consumption was 482.8 MB. Max. memory is 7.1 GB. [2020-10-12 17:49:24,366 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.44 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 101.5 MB in the beginning and 168.1 MB in the end (delta: -66.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 126.78 ms. Allocated memory is still 202.9 MB. Free memory was 168.1 MB in the beginning and 164.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1160.08 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 164.0 MB in the beginning and 189.1 MB in the end (delta: -25.1 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 43261.85 ms. Allocated memory was 235.4 MB in the beginning and 767.0 MB in the end (delta: 531.6 MB). Free memory was 189.1 MB in the beginning and 237.9 MB in the end (delta: -48.8 MB). Peak memory consumption was 482.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L159] int pumpRunning = 0; [L160] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L802] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L584] int retValue_acc ; [L585] int tmp ; [L589] FCALL select_helpers() [L590] FCALL select_features() [L591] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L591] RET, EXPR valid_product() [L591] tmp = valid_product() [L593] COND TRUE \read(tmp) [L595] FCALL setup() [L596] CALL runTest() [L578] CALL test() [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] splverifierCounter = 0 [L93] COND TRUE 1 [L95] COND TRUE splverifierCounter < 4 [L101] tmp = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp) [L105] CALL waterRise() [L417] COND TRUE waterLevel < 2 [L418] waterLevel = waterLevel + 1 [L105] RET waterRise() [L111] tmp___0 = __VERIFIER_nondet_int() [L113] COND TRUE \read(tmp___0) [L115] CALL changeMethaneLevel() [L429] COND FALSE !(\read(methaneLevelCritical)) [L432] methaneLevelCritical = 1 [L115] RET changeMethaneLevel() [L121] tmp___2 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___2) [L138] CALL timeShift() [L167] COND FALSE !(\read(pumpRunning)) [L174] COND TRUE \read(systemActive) [L176] CALL processEnvironment() [L248] int tmp ; [L251] COND FALSE !(\read(pumpRunning)) [L266] CALL processEnvironment__wrappee__lowWaterSensor() [L222] int tmp ; [L225] COND FALSE !(\read(pumpRunning)) [L240] CALL processEnvironment__wrappee__highWaterSensor() [L196] int tmp ; [L199] COND TRUE ! pumpRunning [L201] CALL, EXPR isHighWaterLevel() [L345] int retValue_acc ; [L346] int tmp ; [L347] int tmp___0 ; [L351] CALL, EXPR isHighWaterSensorDry() [L479] int retValue_acc ; [L482] COND FALSE !(waterLevel < 2) [L486] retValue_acc = 0 [L487] return (retValue_acc); [L351] RET, EXPR isHighWaterSensorDry() [L351] tmp = isHighWaterSensorDry() [L353] COND FALSE !(\read(tmp)) [L356] tmp___0 = 1 [L358] retValue_acc = tmp___0 [L359] return (retValue_acc); [L201] RET, EXPR isHighWaterLevel() [L201] tmp = isHighWaterLevel() [L203] COND TRUE \read(tmp) [L205] CALL activatePump() [L276] pumpRunning = 1 [L205] RET activatePump() [L240] RET processEnvironment__wrappee__highWaterSensor() [L266] RET processEnvironment__wrappee__lowWaterSensor() [L176] RET processEnvironment() [L182] CALL __utac_acc__Specification1_spec__1() [L608] int tmp ; [L609] int tmp___0 ; [L613] CALL, EXPR isMethaneLevelCritical() [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] return (retValue_acc); [L613] RET, EXPR isMethaneLevelCritical() [L613] tmp = isMethaneLevelCritical() [L615] COND TRUE \read(tmp) [L617] CALL, EXPR isPumpRunning() [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); [L617] RET, EXPR isPumpRunning() [L617] tmp___0 = isPumpRunning() [L619] COND TRUE \read(tmp___0) [L621] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 251 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 43.1s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 23.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 762 SDtfs, 1850 SDslu, 1189 SDs, 0 SdLazy, 5543 SolverSat, 1265 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 218 GetRequests, 135 SyntacticMatches, 6 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1629occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 829 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 18.1s InterpolantComputationTime, 432 NumberOfCodeBlocks, 432 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 336 ConstructedInterpolants, 0 QuantifiedInterpolants, 122854 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 33/36 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...