/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:07:37,666 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:07:37,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:07:37,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:07:37,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:07:37,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:07:37,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:07:37,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:07:37,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:07:37,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:07:37,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:07:37,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:07:37,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:07:37,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:07:37,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:07:37,753 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:07:37,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:07:37,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:07:37,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:07:37,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:07:37,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:07:37,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:07:37,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:07:37,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:07:37,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:07:37,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:07:37,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:07:37,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:07:37,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:07:37,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:07:37,783 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:07:37,784 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:07:37,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:07:37,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:07:37,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:07:37,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:07:37,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:07:37,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:07:37,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:07:37,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:07:37,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:07:37,792 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 19:07:37,844 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:07:37,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:07:37,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:07:37,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:07:37,847 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:07:37,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:07:37,848 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:07:37,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:07:37,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:07:37,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:07:37,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:07:37,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:07:37,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:07:37,851 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:07:37,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:07:37,851 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:07:37,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:07:37,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:07:37,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:07:37,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:07:37,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:07:37,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:37,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:07:37,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:07:37,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:07:37,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:07:37,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:07:37,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:07:37,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:07:37,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:07:38,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:07:38,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:07:38,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:07:38,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:07:38,304 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:07:38,305 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-24 19:07:38,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/548b1e60f/44294ca5f2d1432c97a50821639b6e49/FLAGf771d8d7a [2020-09-24 19:07:38,968 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:07:38,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product03.cil.c [2020-09-24 19:07:38,997 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/548b1e60f/44294ca5f2d1432c97a50821639b6e49/FLAGf771d8d7a [2020-09-24 19:07:39,217 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/548b1e60f/44294ca5f2d1432c97a50821639b6e49 [2020-09-24 19:07:39,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:07:39,237 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:07:39,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:39,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:07:39,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:07:39,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:39" (1/1) ... [2020-09-24 19:07:39,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39, skipping insertion in model container [2020-09-24 19:07:39,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:07:39" (1/1) ... [2020-09-24 19:07:39,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:07:39,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:07:39,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:39,678 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:07:39,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:07:39,909 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:07:39,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39 WrapperNode [2020-09-24 19:07:39,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:07:39,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:07:39,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:07:39,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:07:39,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39" (1/1) ... [2020-09-24 19:07:39,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39" (1/1) ... [2020-09-24 19:07:39,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39" (1/1) ... [2020-09-24 19:07:39,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39" (1/1) ... [2020-09-24 19:07:39,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39" (1/1) ... [2020-09-24 19:07:39,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39" (1/1) ... [2020-09-24 19:07:39,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39" (1/1) ... [2020-09-24 19:07:40,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:07:40,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:07:40,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:07:40,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:07:40,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:07:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:07:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:07:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:07:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:07:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:07:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:07:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:07:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:07:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:07:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:07:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:07:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:07:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:07:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:07:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:07:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:07:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:07:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:07:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:07:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:07:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:07:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:07:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:07:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:07:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:07:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:07:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:07:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:07:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:07:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:07:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:07:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:07:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:07:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:07:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:07:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:07:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:07:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:07:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:07:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:07:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:07:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:07:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:07:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:07:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:07:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:07:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:07:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:07:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:07:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:07:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:07:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:07:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:07:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:07:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:07:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:07:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:07:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:07:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:07:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:07:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:07:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:07:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:07:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:07:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:07:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:07:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:07:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:07:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:07:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:07:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:07:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:07:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:07:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:07:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:07:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:07:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:07:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:07:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:07:40,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:07:41,240 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:07:41,240 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:07:41,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:41 BoogieIcfgContainer [2020-09-24 19:07:41,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:07:41,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:07:41,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:07:41,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:07:41,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:07:39" (1/3) ... [2020-09-24 19:07:41,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666edfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:41, skipping insertion in model container [2020-09-24 19:07:41,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:07:39" (2/3) ... [2020-09-24 19:07:41,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@666edfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:07:41, skipping insertion in model container [2020-09-24 19:07:41,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:07:41" (3/3) ... [2020-09-24 19:07:41,256 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product03.cil.c [2020-09-24 19:07:41,268 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:07:41,278 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:07:41,301 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:07:41,331 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:07:41,331 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:07:41,332 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:07:41,332 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:07:41,332 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:07:41,332 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:07:41,332 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:07:41,332 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:07:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states. [2020-09-24 19:07:41,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 19:07:41,376 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:41,378 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] [2020-09-24 19:07:41,378 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:41,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:41,385 INFO L82 PathProgramCache]: Analyzing trace with hash -995917748, now seen corresponding path program 1 times [2020-09-24 19:07:41,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:41,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845048895] [2020-09-24 19:07:41,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:41,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:42,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:42,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 19:07:42,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:42,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-09-24 19:07:42,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:42,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:42,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:07:42,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:42,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 19:07:43,125 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:07:43,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:43,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:43,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:43,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:07:43,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 19:07:43,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:43,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:43,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:07:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:43,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:43,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:43,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:43,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:43,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:43,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:43,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:43,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:07:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:43,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:43,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:43,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:43,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:43,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:43,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:43,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:07:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:43,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:43,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:43,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:43,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:43,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:43,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:43,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:43,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:07:43,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:43,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:43,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:43,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:43,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:43,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:43,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:43,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:07:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:43,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:43,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:43,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:43,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:43,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:07:43,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:43,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:43,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:43,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:43,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:07:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:43,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:43,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:43,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:43,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:43,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:43,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:43,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:43,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:07:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:43,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:43,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:43,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:43,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:43,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:43,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:43,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:43,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:43,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:43,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:43,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:43,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845048895] [2020-09-24 19:07:43,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:43,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:07:43,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548736049] [2020-09-24 19:07:43,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:07:43,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:43,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:07:43,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:07:43,538 INFO L87 Difference]: Start difference. First operand 267 states. Second operand 3 states. [2020-09-24 19:07:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:44,717 INFO L93 Difference]: Finished difference Result 385 states and 461 transitions. [2020-09-24 19:07:44,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:07:44,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 19:07:44,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:44,750 INFO L225 Difference]: With dead ends: 385 [2020-09-24 19:07:44,751 INFO L226 Difference]: Without dead ends: 249 [2020-09-24 19:07:44,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:07:44,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-24 19:07:44,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 210. [2020-09-24 19:07:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-09-24 19:07:44,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 225 transitions. [2020-09-24 19:07:44,866 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 225 transitions. Word has length 153 [2020-09-24 19:07:44,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:44,868 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 225 transitions. [2020-09-24 19:07:44,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:07:44,869 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 225 transitions. [2020-09-24 19:07:44,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 19:07:44,878 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:44,880 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] [2020-09-24 19:07:44,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:07:44,904 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:44,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:44,905 INFO L82 PathProgramCache]: Analyzing trace with hash -580992356, now seen corresponding path program 1 times [2020-09-24 19:07:44,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:44,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150185913] [2020-09-24 19:07:44,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:45,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:45,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:45,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:07:45,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-09-24 19:07:45,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:45,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:45,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:07:45,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:07:45,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:46,304 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:07:46,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:07:46,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 19:07:46,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:07:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:46,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:46,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:07:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:46,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:46,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:07:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:46,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:46,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:07:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:46,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:46,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:46,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 19:07:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:46,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:46,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:46,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:07:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:46,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:46,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:46,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 19:07:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:46,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:46,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:46,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:46,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:46,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:46,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:46,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:46,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:46,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:46,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:46,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:46,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150185913] [2020-09-24 19:07:46,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:46,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:07:46,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291665813] [2020-09-24 19:07:46,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:07:46,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:46,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:07:46,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:07:46,552 INFO L87 Difference]: Start difference. First operand 210 states and 225 transitions. Second operand 4 states. [2020-09-24 19:07:47,307 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:07:47,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:47,968 INFO L93 Difference]: Finished difference Result 293 states and 326 transitions. [2020-09-24 19:07:47,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:07:47,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 19:07:47,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:47,973 INFO L225 Difference]: With dead ends: 293 [2020-09-24 19:07:47,973 INFO L226 Difference]: Without dead ends: 232 [2020-09-24 19:07:47,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:07:47,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-09-24 19:07:48,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 200. [2020-09-24 19:07:48,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-09-24 19:07:48,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 212 transitions. [2020-09-24 19:07:48,009 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 212 transitions. Word has length 154 [2020-09-24 19:07:48,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:48,010 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 212 transitions. [2020-09-24 19:07:48,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:07:48,010 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 212 transitions. [2020-09-24 19:07:48,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 19:07:48,013 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:48,014 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] [2020-09-24 19:07:48,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:07:48,014 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:48,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:48,014 INFO L82 PathProgramCache]: Analyzing trace with hash 229202311, now seen corresponding path program 1 times [2020-09-24 19:07:48,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:48,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913365091] [2020-09-24 19:07:48,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:48,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 19:07:49,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:49,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1060 [2020-09-24 19:07:49,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:07:49,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:07:49,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 19:07:49,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:49,441 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:07:49,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:49,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:07:49,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:49,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-24 19:07:49,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:49,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:49,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:07:49,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:49,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:07:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:49,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:49,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:49,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:49,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:49,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:49,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 19:07:49,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:07:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:49,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:49,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:49,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:49,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:49,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:49,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:49,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:49,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:07:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:49,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:49,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:49,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 19:07:49,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:49,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:49,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:49,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:49,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:07:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:49,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:49,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:49,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:49,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:49,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:49,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:49,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:49,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:07:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:49,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:49,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:49,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:49,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:49,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:07:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:49,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:49,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:49,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:49,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:49,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:49,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:49,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 19:07:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:49,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:49,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:49,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:49,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:49,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:49,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:49,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:49,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:49,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:49,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:49,965 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913365091] [2020-09-24 19:07:49,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:49,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:07:49,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029856145] [2020-09-24 19:07:49,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:07:49,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:49,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:07:49,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:07:49,968 INFO L87 Difference]: Start difference. First operand 200 states and 212 transitions. Second operand 4 states. [2020-09-24 19:07:50,659 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:07:52,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:52,216 INFO L93 Difference]: Finished difference Result 420 states and 475 transitions. [2020-09-24 19:07:52,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:07:52,217 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 19:07:52,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:52,221 INFO L225 Difference]: With dead ends: 420 [2020-09-24 19:07:52,222 INFO L226 Difference]: Without dead ends: 330 [2020-09-24 19:07:52,223 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:07:52,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-09-24 19:07:52,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 278. [2020-09-24 19:07:52,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-09-24 19:07:52,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 301 transitions. [2020-09-24 19:07:52,283 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 301 transitions. Word has length 163 [2020-09-24 19:07:52,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:52,284 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 301 transitions. [2020-09-24 19:07:52,284 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:07:52,284 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 301 transitions. [2020-09-24 19:07:52,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 19:07:52,287 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:52,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:07:52,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:07:52,288 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:52,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:52,289 INFO L82 PathProgramCache]: Analyzing trace with hash -63137044, now seen corresponding path program 1 times [2020-09-24 19:07:52,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:52,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [304409725] [2020-09-24 19:07:52,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:52,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:53,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:53,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:07:53,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:53,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1008 [2020-09-24 19:07:53,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:53,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 19:07:53,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 19:07:53,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 19:07:53,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:53,732 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:07:53,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:53,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:53,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:54,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:54,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:07:54,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:54,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 247 [2020-09-24 19:07:54,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:54,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 19:07:54,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:54,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:07:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:54,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:54,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:54,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:54,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:54,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:54,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:54,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:54,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:07:54,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:07:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:54,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:54,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:54,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:54,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:54,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:54,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:54,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:54,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:54,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:54,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:07:54,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:54,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:54,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:54,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:54,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:54,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:07:54,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:54,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:54,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:54,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:07:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:54,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:54,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:54,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:54,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:54,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:07:54,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:54,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:54,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:54,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:54,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:54,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:07:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:54,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:54,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:54,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:07:54,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:54,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:07:54,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:07:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:54,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 19:07:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:54,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:54,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:54,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:54,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:54,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:07:54,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:07:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:54,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:54,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:54,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:07:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:54,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:54,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:54,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:54,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:54,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:07:54,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:54,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:07:54,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:07:54,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:07:54,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:54,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 19:07:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:54,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:54,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:54,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:07:54,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:07:54,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:07:54,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:07:54,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:07:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:07:54,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:54,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:07:54,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [304409725] [2020-09-24 19:07:54,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:07:54,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:07:54,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649703549] [2020-09-24 19:07:54,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:07:54,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:07:54,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:07:54,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:07:54,207 INFO L87 Difference]: Start difference. First operand 278 states and 301 transitions. Second operand 8 states. [2020-09-24 19:07:54,693 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:07:56,105 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:07:56,442 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:56,828 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:07:57,138 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:07:57,439 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:07:57,766 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:07:58,053 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:07:58,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:07:58,363 INFO L93 Difference]: Finished difference Result 629 states and 727 transitions. [2020-09-24 19:07:58,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:07:58,365 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-24 19:07:58,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:07:58,371 INFO L225 Difference]: With dead ends: 629 [2020-09-24 19:07:58,373 INFO L226 Difference]: Without dead ends: 461 [2020-09-24 19:07:58,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 19:07:58,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2020-09-24 19:07:58,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 429. [2020-09-24 19:07:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-09-24 19:07:58,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 479 transitions. [2020-09-24 19:07:58,457 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 479 transitions. Word has length 166 [2020-09-24 19:07:58,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:07:58,458 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 479 transitions. [2020-09-24 19:07:58,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:07:58,458 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 479 transitions. [2020-09-24 19:07:58,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 19:07:58,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:07:58,462 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] [2020-09-24 19:07:58,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:07:58,462 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:07:58,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:07:58,463 INFO L82 PathProgramCache]: Analyzing trace with hash 585626603, now seen corresponding path program 1 times [2020-09-24 19:07:58,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:07:58,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369307809] [2020-09-24 19:07:58,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:07:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:58,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:59,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:07:59,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:07:59,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 19:07:59,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:07:59,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-09-24 19:07:59,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:07:59,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:07:59,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:07:59,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 19:07:59,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:07:59,893 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:07:59,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:07:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:07:59,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:00,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 19:08:00,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:00,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:00,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:00,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:00,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:00,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:00,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:00,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 19:08:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:08:00,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:08:00,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 19:08:00,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:08:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:00,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:00,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:00,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:08:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:08:00,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:00,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:08:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:08:00,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:00,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:08:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:00,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:00,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:00,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:00,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:00,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:08:00,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:08:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:00,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:00,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:00,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:00,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369307809] [2020-09-24 19:08:00,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:00,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:08:00,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869760178] [2020-09-24 19:08:00,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:08:00,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:00,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:08:00,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:08:00,211 INFO L87 Difference]: Start difference. First operand 429 states and 479 transitions. Second operand 9 states. [2020-09-24 19:08:01,574 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:08:02,771 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:03,057 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:08:03,372 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:08:03,639 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:08:03,932 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:08:04,292 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-24 19:08:04,621 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 19:08:04,905 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:08:05,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:05,168 INFO L93 Difference]: Finished difference Result 799 states and 918 transitions. [2020-09-24 19:08:05,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:08:05,169 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-24 19:08:05,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:05,173 INFO L225 Difference]: With dead ends: 799 [2020-09-24 19:08:05,174 INFO L226 Difference]: Without dead ends: 613 [2020-09-24 19:08:05,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 19:08:05,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2020-09-24 19:08:05,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 577. [2020-09-24 19:08:05,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2020-09-24 19:08:05,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 649 transitions. [2020-09-24 19:08:05,282 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 649 transitions. Word has length 171 [2020-09-24 19:08:05,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:05,283 INFO L479 AbstractCegarLoop]: Abstraction has 577 states and 649 transitions. [2020-09-24 19:08:05,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:08:05,283 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 649 transitions. [2020-09-24 19:08:05,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 19:08:05,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:05,287 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] [2020-09-24 19:08:05,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:08:05,287 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:05,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:05,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1257129521, now seen corresponding path program 1 times [2020-09-24 19:08:05,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:05,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1271021285] [2020-09-24 19:08:05,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 19:08:05,350 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 19:08:05,351 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 19:08:05,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:08:05,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:08:05 BoogieIcfgContainer [2020-09-24 19:08:05,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:08:05,388 INFO L168 Benchmark]: Toolchain (without parser) took 26154.27 ms. Allocated memory was 141.0 MB in the beginning and 587.2 MB in the end (delta: 446.2 MB). Free memory was 103.7 MB in the beginning and 507.2 MB in the end (delta: -403.4 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:05,389 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 19:08:05,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.73 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 103.1 MB in the beginning and 177.3 MB in the end (delta: -74.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:05,391 INFO L168 Benchmark]: Boogie Preprocessor took 96.04 ms. Allocated memory is still 206.6 MB. Free memory was 177.3 MB in the beginning and 173.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:05,391 INFO L168 Benchmark]: RCFGBuilder took 1240.06 ms. Allocated memory was 206.6 MB in the beginning and 234.4 MB in the end (delta: 27.8 MB). Free memory was 173.3 MB in the beginning and 180.5 MB in the end (delta: -7.2 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:05,392 INFO L168 Benchmark]: TraceAbstraction took 24137.25 ms. Allocated memory was 234.4 MB in the beginning and 587.2 MB in the end (delta: 352.8 MB). Free memory was 179.2 MB in the beginning and 507.2 MB in the end (delta: -328.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2020-09-24 19:08:05,396 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.73 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 103.1 MB in the beginning and 177.3 MB in the end (delta: -74.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.04 ms. Allocated memory is still 206.6 MB. Free memory was 177.3 MB in the beginning and 173.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1240.06 ms. Allocated memory was 206.6 MB in the beginning and 234.4 MB in the end (delta: 27.8 MB). Free memory was 173.3 MB in the beginning and 180.5 MB in the end (delta: -7.2 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24137.25 ms. Allocated memory was 234.4 MB in the beginning and 587.2 MB in the end (delta: 352.8 MB). Free memory was 179.2 MB in the beginning and 507.2 MB in the end (delta: -328.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 650]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L119] int pumpRunning = 0; [L120] int systemActive = 1; [L411] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L690] int cleanupTimeShifts = 4; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L763] int retValue_acc ; [L764] int tmp ; [L768] FCALL select_helpers() [L769] FCALL select_features() [L770] CALL, EXPR valid_product() [L637] int retValue_acc ; [L640] retValue_acc = 1 [L641] return (retValue_acc); [L770] RET, EXPR valid_product() [L770] tmp = valid_product() [L772] COND TRUE \read(tmp) [L774] FCALL setup() [L775] CALL runTest() [L757] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) [L100] CALL timeShift() [L127] COND FALSE !(\read(pumpRunning)) [L134] COND TRUE \read(systemActive) [L136] FCALL processEnvironment() [L142] CALL __utac_acc__Specification3_spec__1() [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L663] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L663] RET, EXPR isMethaneLevelCritical() [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L669] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L669] RET, EXPR getWaterLevel() [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L673] CALL, EXPR isPumpRunning() [L182] int retValue_acc ; [L185] retValue_acc = pumpRunning [L186] return (retValue_acc); [L673] RET, EXPR isPumpRunning() [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) [L679] CALL __automaton_fail() [L650] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 584 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1041 SDtfs, 919 SDslu, 1419 SDs, 0 SdLazy, 2604 SolverSat, 256 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=577occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 191 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 978 NumberOfCodeBlocks, 978 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 802 ConstructedInterpolants, 0 QuantifiedInterpolants, 339958 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...