/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:26:01,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:26:01,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:26:01,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:26:01,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:26:01,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:26:01,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:26:01,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:26:01,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:26:01,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:26:01,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:26:01,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:26:01,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:26:01,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:26:01,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:26:01,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:26:01,766 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:26:01,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:26:01,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:26:01,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:26:01,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:26:01,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:26:01,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:26:01,777 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:26:01,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:26:01,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:26:01,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:26:01,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:26:01,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:26:01,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:26:01,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:26:01,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:26:01,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:26:01,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:26:01,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:26:01,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:26:01,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:26:01,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:26:01,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:26:01,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:26:01,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:26:01,792 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:26:01,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:26:01,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:26:01,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:26:01,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:26:01,820 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:26:01,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:26:01,821 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:26:01,821 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:26:01,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:26:01,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:26:01,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:26:01,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:26:01,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:26:01,822 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:26:01,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:26:01,823 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:26:01,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:26:01,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:26:01,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:26:01,824 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:26:01,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:26:01,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:26:01,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:26:01,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:26:01,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:26:01,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:26:01,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:26:01,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:26:01,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:26:01,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:26:02,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:26:02,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:26:02,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:26:02,310 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:26:02,311 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:26:02,312 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-24 21:26:02,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2046addb9/2ad48089eb6d4545b17f067f42e39334/FLAG3a44428c6 [2020-09-24 21:26:03,055 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:26:03,056 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-09-24 21:26:03,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2046addb9/2ad48089eb6d4545b17f067f42e39334/FLAG3a44428c6 [2020-09-24 21:26:03,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2046addb9/2ad48089eb6d4545b17f067f42e39334 [2020-09-24 21:26:03,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:26:03,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:26:03,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:26:03,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:26:03,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:26:03,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:26:03" (1/1) ... [2020-09-24 21:26:03,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:03, skipping insertion in model container [2020-09-24 21:26:03,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:26:03" (1/1) ... [2020-09-24 21:26:03,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:26:03,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:26:03,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:26:03,773 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:26:03,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:26:04,008 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:26:04,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04 WrapperNode [2020-09-24 21:26:04,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:26:04,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:26:04,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:26:04,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:26:04,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04" (1/1) ... [2020-09-24 21:26:04,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04" (1/1) ... [2020-09-24 21:26:04,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04" (1/1) ... [2020-09-24 21:26:04,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04" (1/1) ... [2020-09-24 21:26:04,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04" (1/1) ... [2020-09-24 21:26:04,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04" (1/1) ... [2020-09-24 21:26:04,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04" (1/1) ... [2020-09-24 21:26:04,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:26:04,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:26:04,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:26:04,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:26:04,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:26:04,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:26:04,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:26:04,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:26:04,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:26:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:26:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:26:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:26:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:26:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:26:04,197 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:26:04,197 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:26:04,197 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:26:04,197 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:26:04,197 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:26:04,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:26:04,198 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:26:04,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:26:04,198 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:26:04,198 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:26:04,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:26:04,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:26:04,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:26:04,199 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:26:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:26:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:26:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:26:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:26:04,200 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:26:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:26:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:26:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:26:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:26:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:26:04,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:26:04,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:26:04,202 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:26:04,202 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:26:04,202 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:26:04,202 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:26:04,202 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:26:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:26:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:26:04,203 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:26:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:26:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:26:04,203 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:26:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:26:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:26:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:26:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:26:04,204 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:26:04,205 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:26:04,205 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:26:04,205 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:26:04,205 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:26:04,205 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:26:04,205 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:26:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:26:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:26:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:26:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:26:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:26:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 21:26:04,206 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:26:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:26:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:26:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:26:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:26:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:26:04,207 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:26:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:26:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:26:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:26:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:26:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:26:04,208 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:26:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:26:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:26:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:26:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:26:04,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:26:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:26:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:26:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:26:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:26:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:26:04,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:26:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:26:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:26:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:26:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:26:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:26:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:26:04,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:26:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:26:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:26:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:26:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:26:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:26:04,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:26:05,426 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:26:05,426 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:26:05,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:26:05 BoogieIcfgContainer [2020-09-24 21:26:05,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:26:05,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:26:05,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:26:05,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:26:05,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:26:03" (1/3) ... [2020-09-24 21:26:05,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661bc952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:26:05, skipping insertion in model container [2020-09-24 21:26:05,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:26:04" (2/3) ... [2020-09-24 21:26:05,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661bc952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:26:05, skipping insertion in model container [2020-09-24 21:26:05,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:26:05" (3/3) ... [2020-09-24 21:26:05,446 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2020-09-24 21:26:05,459 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:26:05,471 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:26:05,499 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:26:05,547 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:26:05,548 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:26:05,549 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:26:05,550 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:26:05,550 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:26:05,550 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:26:05,550 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:26:05,551 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:26:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states. [2020-09-24 21:26:05,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:26:05,628 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:26:05,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:26:05,633 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:26:05,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:26:05,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1052921660, now seen corresponding path program 1 times [2020-09-24 21:26:05,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:26:05,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1286398955] [2020-09-24 21:26:05,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:26:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:06,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:07,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:08,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:11,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:11,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:26:11,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:26:11,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-09-24 21:26:11,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:26:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:26:11,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 21:26:11,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:26:11,742 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:26:11,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:26:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:11,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:12,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:12,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:26:12,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:12,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-09-24 21:26:12,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:12,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:12,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:26:12,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:12,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:26:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:12,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:12,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:12,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:12,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:12,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:26:12,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:12,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:12,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:12,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:12,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:26:12,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:26:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:12,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:12,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:12,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:12,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:12,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:26:12,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:12,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:12,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:12,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:26:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:12,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:12,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:12,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:12,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:12,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 21:26:12,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:12,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:12,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:12,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:12,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:26:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:12,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:12,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:12,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:12,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:12,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:26:12,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:12,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:12,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:12,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:12,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:26:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:12,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:12,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:12,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:12,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:12,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:12,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:12,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:12,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:12,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:12,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:26:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:12,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:12,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:12,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:12,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:12,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:12,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:12,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:12,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:12,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:12,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:12,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:26:12,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1286398955] [2020-09-24 21:26:12,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:26:12,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 21:26:12,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284716602] [2020-09-24 21:26:12,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 21:26:12,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:26:12,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 21:26:12,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 21:26:12,517 INFO L87 Difference]: Start difference. First operand 350 states. Second operand 4 states. [2020-09-24 21:26:13,183 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:14,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:26:14,668 INFO L93 Difference]: Finished difference Result 570 states and 675 transitions. [2020-09-24 21:26:14,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 21:26:14,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-24 21:26:14,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:26:14,707 INFO L225 Difference]: With dead ends: 570 [2020-09-24 21:26:14,708 INFO L226 Difference]: Without dead ends: 345 [2020-09-24 21:26:14,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:26:14,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-09-24 21:26:14,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 299. [2020-09-24 21:26:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-09-24 21:26:14,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 326 transitions. [2020-09-24 21:26:14,950 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 326 transitions. Word has length 142 [2020-09-24 21:26:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:26:14,952 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 326 transitions. [2020-09-24 21:26:14,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 21:26:14,952 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 326 transitions. [2020-09-24 21:26:14,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-24 21:26:14,959 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:26:14,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:26:14,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:26:14,961 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:26:14,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:26:14,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1152669890, now seen corresponding path program 1 times [2020-09-24 21:26:14,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:26:14,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [365609573] [2020-09-24 21:26:14,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:26:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:15,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:15,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:15,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:15,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:18,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:19,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-24 21:26:20,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 21:26:20,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-09-24 21:26:20,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:26:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:26:20,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-24 21:26:20,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:20,408 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:26:20,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:26:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:26:20,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-24 21:26:20,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:20,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:26:20,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:20,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:26:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:20,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:20,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:20,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:20,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:20,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:20,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:26:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:20,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:20,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:20,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:20,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:20,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:26:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:20,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:26:20,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:20,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:20,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:26:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:20,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:20,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:20,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:20,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:20,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 21:26:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:26:20,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:26:20,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:20,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:20,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:26:20,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:20,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 21:26:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:26:20,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:26:20,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 21:26:20,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:26:20,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:26:20,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-24 21:26:20,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:20,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:26:20,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:26:20,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:26:20,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 21:26:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:26:20,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 21:26:20,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:20,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:26:20,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:26:20,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:26:20,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:26:20,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:26:20,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:20,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:20,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:20,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:26:20,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:20,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:20,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:20,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 21:26:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:20,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:26:20,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:20,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:20,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:20,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:20,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-24 21:26:20,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:20,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:20,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:20,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:20,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:20,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:20,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:20,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:20,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:26:21,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [365609573] [2020-09-24 21:26:21,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:26:21,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:26:21,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419705349] [2020-09-24 21:26:21,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:26:21,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:26:21,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:26:21,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:26:21,032 INFO L87 Difference]: Start difference. First operand 299 states and 326 transitions. Second operand 8 states. [2020-09-24 21:26:21,552 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:23,175 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:26:25,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:26:25,066 INFO L93 Difference]: Finished difference Result 792 states and 970 transitions. [2020-09-24 21:26:25,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:26:25,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-09-24 21:26:25,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:26:25,078 INFO L225 Difference]: With dead ends: 792 [2020-09-24 21:26:25,078 INFO L226 Difference]: Without dead ends: 603 [2020-09-24 21:26:25,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:26:25,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2020-09-24 21:26:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 449. [2020-09-24 21:26:25,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2020-09-24 21:26:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 495 transitions. [2020-09-24 21:26:25,199 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 495 transitions. Word has length 174 [2020-09-24 21:26:25,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:26:25,200 INFO L479 AbstractCegarLoop]: Abstraction has 449 states and 495 transitions. [2020-09-24 21:26:25,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:26:25,200 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 495 transitions. [2020-09-24 21:26:25,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-24 21:26:25,202 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:26:25,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:26:25,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:26:25,203 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:26:25,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:26:25,203 INFO L82 PathProgramCache]: Analyzing trace with hash -312072508, now seen corresponding path program 1 times [2020-09-24 21:26:25,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:26:25,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714136463] [2020-09-24 21:26:25,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:26:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:25,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:25,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:26,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:30,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:30,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-24 21:26:30,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:26:30,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-24 21:26:30,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:26:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:26:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-09-24 21:26:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:30,610 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:26:30,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:26:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:30,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:30,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:30,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:26:30,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:30,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-24 21:26:30,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:30,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:30,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:30,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:26:30,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:30,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:26:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:30,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:30,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:30,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:30,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:30,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:30,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:30,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:30,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:26:30,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:26:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:30,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:30,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:30,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:30,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:30,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:30,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:30,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:30,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:30,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:26:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:30,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:30,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:30,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:30,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:30,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:26:30,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:30,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:30,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:30,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:30,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:30,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:26:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:30,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:30,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:30,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:30,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:30,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:30,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:30,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:30,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:30,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:30,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 21:26:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:30,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:31,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:31,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 21:26:31,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:31,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:26:31,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:31,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:31,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-24 21:26:31,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:31,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:31,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:31,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:31,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:26:31,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:31,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:26:31,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:31,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:31,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:31,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:31,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:31,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:31,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:31,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:26:31,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:31,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:26:31,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:31,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:31,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:31,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:31,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:31,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:31,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:26:31,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:31,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:26:31,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:31,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:31,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:31,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:26:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:31,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:31,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:31,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:26:31,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:31,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:26:31,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:31,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:31,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:31,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:31,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:26:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:31,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:31,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:31,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:31,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:31,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:31,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:31,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:31,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:31,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:31,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 21:26:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:31,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:31,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:31,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:31,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:31,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:26:31,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:26:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:31,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 21:26:31,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:31,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:31,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:31,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:31,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:31,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:31,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:31,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:31,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:26:31,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:31,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:31,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:26:31,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714136463] [2020-09-24 21:26:31,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:26:31,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:26:31,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651584123] [2020-09-24 21:26:31,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:26:31,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:26:31,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:26:31,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:26:31,289 INFO L87 Difference]: Start difference. First operand 449 states and 495 transitions. Second operand 9 states. [2020-09-24 21:26:31,955 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:33,223 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:26:34,209 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 21:26:34,825 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 21:26:35,157 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:35,484 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:35,812 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:26:36,499 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:26:38,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:26:38,265 INFO L93 Difference]: Finished difference Result 1094 states and 1307 transitions. [2020-09-24 21:26:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:26:38,266 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2020-09-24 21:26:38,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:26:38,273 INFO L225 Difference]: With dead ends: 1094 [2020-09-24 21:26:38,273 INFO L226 Difference]: Without dead ends: 755 [2020-09-24 21:26:38,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:26:38,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2020-09-24 21:26:38,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 663. [2020-09-24 21:26:38,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 663 states. [2020-09-24 21:26:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 747 transitions. [2020-09-24 21:26:38,361 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 747 transitions. Word has length 185 [2020-09-24 21:26:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:26:38,369 INFO L479 AbstractCegarLoop]: Abstraction has 663 states and 747 transitions. [2020-09-24 21:26:38,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:26:38,370 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 747 transitions. [2020-09-24 21:26:38,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 21:26:38,373 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:26:38,373 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:26:38,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:26:38,374 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:26:38,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:26:38,374 INFO L82 PathProgramCache]: Analyzing trace with hash 3424835, now seen corresponding path program 1 times [2020-09-24 21:26:38,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:26:38,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897065369] [2020-09-24 21:26:38,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:26:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:38,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:38,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:38,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:39,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:41,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:43,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:43,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-09-24 21:26:43,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:26:43,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 21:26:43,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:43,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 21:26:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:26:43,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-09-24 21:26:43,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:43,790 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:26:43,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:26:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:43,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:26:44,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-09-24 21:26:44,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:26:44,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:26:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:44,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:44,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:44,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:44,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:26:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:44,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:26:44,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:44,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:26:44,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:26:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:44,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:26:44,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:44,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:26:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:44,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:44,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:44,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 21:26:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:26:44,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:26:44,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:26:44,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:26:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:26:44,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:26:44,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:26:44,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:26:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-24 21:26:44,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:26:44,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-24 21:26:44,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:26:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:26:44,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 21:26:44,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:44,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 21:26:44,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:26:44,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-09-24 21:26:44,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:26:44,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:26:44,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 21:26:44,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 21:26:44,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 21:26:44,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 21:26:44,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 21:26:44,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:26:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:26:44,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:26:44,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 21:26:44,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:26:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:26:44,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:26:44,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:26:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:26:44,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:26:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:26:44,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:44,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:26:44,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 21:26:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:44,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:26:44,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:26:44,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:44,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:44,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 21:26:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:26:44,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:26:44,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:26:44,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:26:44,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:26:44,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 21:26:44,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:26:44,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:26:44,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:26:44,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:26:44,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:26:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:26:45,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897065369] [2020-09-24 21:26:45,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:26:45,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 21:26:45,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652689848] [2020-09-24 21:26:45,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 21:26:45,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:26:45,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 21:26:45,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 21:26:45,027 INFO L87 Difference]: Start difference. First operand 663 states and 747 transitions. Second operand 12 states. [2020-09-24 21:26:45,873 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-24 21:26:48,163 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-09-24 21:26:48,832 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-09-24 21:26:49,439 WARN L193 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-09-24 21:26:50,051 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-09-24 21:26:50,575 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-09-24 21:26:51,097 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:26:51,408 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188