/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 17:58:46,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 17:58:46,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 17:58:46,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 17:58:46,705 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 17:58:46,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 17:58:46,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 17:58:46,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 17:58:46,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 17:58:46,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 17:58:46,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 17:58:46,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 17:58:46,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 17:58:46,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 17:58:46,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 17:58:46,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 17:58:46,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 17:58:46,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 17:58:46,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 17:58:46,742 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 17:58:46,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 17:58:46,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 17:58:46,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 17:58:46,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 17:58:46,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 17:58:46,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 17:58:46,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 17:58:46,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 17:58:46,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 17:58:46,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 17:58:46,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 17:58:46,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 17:58:46,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 17:58:46,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 17:58:46,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 17:58:46,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 17:58:46,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 17:58:46,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 17:58:46,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 17:58:46,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 17:58:46,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 17:58:46,770 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 [2020-08-21 17:58:46,808 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 17:58:46,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 17:58:46,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 17:58:46,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 17:58:46,811 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 17:58:46,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 17:58:46,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 17:58:46,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 17:58:46,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 17:58:46,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 17:58:46,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 17:58:46,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 17:58:46,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 17:58:46,814 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 17:58:46,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 17:58:46,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 17:58:46,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 17:58:46,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 17:58:46,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 17:58:46,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 17:58:46,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 17:58:46,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 17:58:46,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 17:58:46,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 17:58:46,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 17:58:46,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 17:58:46,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 17:58:46,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 17:58:46,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 17:58:46,817 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-08-21 17:58:47,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 17:58:47,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 17:58:47,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 17:58:47,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 17:58:47,099 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 17:58:47,100 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-08-21 17:58:47,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9273abf4a/82369ce1760443abb72349916bc87477/FLAGccb850953 [2020-08-21 17:58:47,715 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 17:58:47,716 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-08-21 17:58:47,737 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9273abf4a/82369ce1760443abb72349916bc87477/FLAGccb850953 [2020-08-21 17:58:47,987 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9273abf4a/82369ce1760443abb72349916bc87477 [2020-08-21 17:58:47,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 17:58:47,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 17:58:48,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 17:58:48,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 17:58:48,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 17:58:48,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:58:47" (1/1) ... [2020-08-21 17:58:48,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48, skipping insertion in model container [2020-08-21 17:58:48,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:58:47" (1/1) ... [2020-08-21 17:58:48,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 17:58:48,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 17:58:48,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:58:48,541 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 17:58:48,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 17:58:48,677 INFO L208 MainTranslator]: Completed translation [2020-08-21 17:58:48,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48 WrapperNode [2020-08-21 17:58:48,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 17:58:48,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 17:58:48,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 17:58:48,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 17:58:48,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48" (1/1) ... [2020-08-21 17:58:48,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48" (1/1) ... [2020-08-21 17:58:48,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48" (1/1) ... [2020-08-21 17:58:48,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48" (1/1) ... [2020-08-21 17:58:48,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48" (1/1) ... [2020-08-21 17:58:48,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48" (1/1) ... [2020-08-21 17:58:48,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48" (1/1) ... [2020-08-21 17:58:48,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 17:58:48,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 17:58:48,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 17:58:48,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 17:58:48,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48" (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 [2020-08-21 17:58:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 17:58:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 17:58:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-21 17:58:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-21 17:58:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-21 17:58:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-21 17:58:48,880 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-21 17:58:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-21 17:58:48,881 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-21 17:58:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-21 17:58:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-21 17:58:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-21 17:58:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-21 17:58:48,882 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-21 17:58:48,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-21 17:58:48,883 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-21 17:58:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-21 17:58:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-21 17:58:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-21 17:58:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 17:58:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-21 17:58:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-21 17:58:48,884 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-21 17:58:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-21 17:58:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-21 17:58:48,885 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-21 17:58:48,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-21 17:58:48,886 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-21 17:58:48,886 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-21 17:58:48,886 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-21 17:58:48,886 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-21 17:58:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-21 17:58:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-21 17:58:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-21 17:58:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-21 17:58:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-21 17:58:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-21 17:58:48,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-21 17:58:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 17:58:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 17:58:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-21 17:58:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-21 17:58:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-21 17:58:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-21 17:58:48,888 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-21 17:58:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-21 17:58:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-21 17:58:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-21 17:58:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-21 17:58:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-21 17:58:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-21 17:58:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-21 17:58:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-21 17:58:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-21 17:58:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-21 17:58:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-21 17:58:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-21 17:58:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-21 17:58:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-21 17:58:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-21 17:58:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 17:58:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-21 17:58:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-21 17:58:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-21 17:58:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-21 17:58:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-21 17:58:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-21 17:58:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-21 17:58:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-21 17:58:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 17:58:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-21 17:58:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-21 17:58:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 17:58:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 17:58:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-21 17:58:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 17:58:48,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 17:58:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 17:58:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 17:58:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-21 17:58:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 17:58:48,896 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-21 17:58:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-21 17:58:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 17:58:48,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-21 17:58:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-21 17:58:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-21 17:58:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 17:58:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 17:58:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 17:58:49,850 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 17:58:49,850 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-21 17:58:49,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:58:49 BoogieIcfgContainer [2020-08-21 17:58:49,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 17:58:49,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 17:58:49,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 17:58:49,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 17:58:49,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:58:47" (1/3) ... [2020-08-21 17:58:49,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40274471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:58:49, skipping insertion in model container [2020-08-21 17:58:49,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:58:48" (2/3) ... [2020-08-21 17:58:49,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40274471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:58:49, skipping insertion in model container [2020-08-21 17:58:49,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:58:49" (3/3) ... [2020-08-21 17:58:49,864 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-08-21 17:58:49,875 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 17:58:49,883 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 17:58:49,896 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 17:58:49,920 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 17:58:49,921 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 17:58:49,921 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 17:58:49,921 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 17:58:49,921 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 17:58:49,921 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 17:58:49,922 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 17:58:49,922 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 17:58:49,943 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-08-21 17:58:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-21 17:58:49,954 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:58:49,955 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] [2020-08-21 17:58:49,956 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:58:49,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:58:49,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1153926417, now seen corresponding path program 1 times [2020-08-21 17:58:49,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:58:49,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428281574] [2020-08-21 17:58:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:58:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:50,624 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 17:58:50,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:58:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:50,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:58:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:50,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:58:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:50,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:58:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:50,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:58:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:50,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-21 17:58:50,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:50,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-21 17:58:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:50,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 17:58:50,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 17:58:50,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428281574] [2020-08-21 17:58:50,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:58:50,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-21 17:58:50,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357785363] [2020-08-21 17:58:50,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-21 17:58:50,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:58:50,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-21 17:58:50,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 17:58:50,755 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-08-21 17:58:51,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:58:51,777 INFO L93 Difference]: Finished difference Result 281 states and 368 transitions. [2020-08-21 17:58:51,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-21 17:58:51,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-21 17:58:51,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:58:51,792 INFO L225 Difference]: With dead ends: 281 [2020-08-21 17:58:51,793 INFO L226 Difference]: Without dead ends: 152 [2020-08-21 17:58:51,797 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-21 17:58:51,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-08-21 17:58:51,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-08-21 17:58:51,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-08-21 17:58:51,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-08-21 17:58:51,882 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2020-08-21 17:58:51,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:58:51,882 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-08-21 17:58:51,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-21 17:58:51,883 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-08-21 17:58:51,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-21 17:58:51,886 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:58:51,887 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] [2020-08-21 17:58:51,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 17:58:51,887 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:58:51,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:58:51,888 INFO L82 PathProgramCache]: Analyzing trace with hash -548767927, now seen corresponding path program 1 times [2020-08-21 17:58:51,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:58:51,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584834577] [2020-08-21 17:58:51,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:58:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:52,229 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 17:58:52,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:58:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:52,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:58:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:52,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:58:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:52,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:58:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:52,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:58:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:52,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 17:58:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:52,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-21 17:58:52,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:52,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-21 17:58:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:52,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 17:58:52,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584834577] [2020-08-21 17:58:52,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:58:52,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-21 17:58:52,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048059394] [2020-08-21 17:58:52,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-21 17:58:52,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:58:52,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-21 17:58:52,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-21 17:58:52,273 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2020-08-21 17:58:52,729 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:58:53,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:58:53,406 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2020-08-21 17:58:53,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 17:58:53,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-21 17:58:53,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:58:53,410 INFO L225 Difference]: With dead ends: 205 [2020-08-21 17:58:53,410 INFO L226 Difference]: Without dead ends: 136 [2020-08-21 17:58:53,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-21 17:58:53,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-08-21 17:58:53,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-08-21 17:58:53,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-08-21 17:58:53,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2020-08-21 17:58:53,448 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2020-08-21 17:58:53,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:58:53,449 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2020-08-21 17:58:53,449 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-21 17:58:53,449 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2020-08-21 17:58:53,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-21 17:58:53,451 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:58:53,451 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] [2020-08-21 17:58:53,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 17:58:53,452 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:58:53,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:58:53,452 INFO L82 PathProgramCache]: Analyzing trace with hash 196992317, now seen corresponding path program 1 times [2020-08-21 17:58:53,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:58:53,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184519712] [2020-08-21 17:58:53,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:58:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:53,773 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 17:58:53,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:58:53,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:53,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:58:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:53,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:58:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:53,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:58:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:53,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:58:53,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:53,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 17:58:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:53,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 17:58:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:53,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 17:58:53,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 17:58:53,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184519712] [2020-08-21 17:58:53,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:58:53,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 17:58:53,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999619966] [2020-08-21 17:58:53,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 17:58:53,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:58:53,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 17:58:53,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 17:58:53,867 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 8 states. [2020-08-21 17:58:54,212 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 17:58:54,503 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 17:58:54,782 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 17:58:55,003 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 17:58:55,711 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-21 17:58:57,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:58:57,130 INFO L93 Difference]: Finished difference Result 387 states and 477 transitions. [2020-08-21 17:58:57,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 17:58:57,131 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-21 17:58:57,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:58:57,135 INFO L225 Difference]: With dead ends: 387 [2020-08-21 17:58:57,135 INFO L226 Difference]: Without dead ends: 300 [2020-08-21 17:58:57,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-21 17:58:57,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-08-21 17:58:57,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 234. [2020-08-21 17:58:57,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-08-21 17:58:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 279 transitions. [2020-08-21 17:58:57,206 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 279 transitions. Word has length 57 [2020-08-21 17:58:57,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:58:57,207 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 279 transitions. [2020-08-21 17:58:57,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 17:58:57,207 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 279 transitions. [2020-08-21 17:58:57,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-21 17:58:57,210 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:58:57,210 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] [2020-08-21 17:58:57,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 17:58:57,210 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:58:57,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:58:57,211 INFO L82 PathProgramCache]: Analyzing trace with hash 925372224, now seen corresponding path program 1 times [2020-08-21 17:58:57,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:58:57,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1634903668] [2020-08-21 17:58:57,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:58:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,475 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-21 17:58:57,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 17:58:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 17:58:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 17:58:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 17:58:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-21 17:58:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-21 17:58:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-21 17:58:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-21 17:58:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-21 17:58:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 17:58:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 17:58:57,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1634903668] [2020-08-21 17:58:57,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 17:58:57,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-21 17:58:57,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133551496] [2020-08-21 17:58:57,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 17:58:57,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 17:58:57,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 17:58:57,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 17:58:57,599 INFO L87 Difference]: Start difference. First operand 234 states and 279 transitions. Second operand 8 states. [2020-08-21 17:58:57,967 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 17:58:59,180 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 17:58:59,466 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 17:58:59,724 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-21 17:58:59,942 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-21 17:59:00,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 17:59:00,543 INFO L93 Difference]: Finished difference Result 714 states and 935 transitions. [2020-08-21 17:59:00,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 17:59:00,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-21 17:59:00,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 17:59:00,549 INFO L225 Difference]: With dead ends: 714 [2020-08-21 17:59:00,550 INFO L226 Difference]: Without dead ends: 504 [2020-08-21 17:59:00,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-21 17:59:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-08-21 17:59:00,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 441. [2020-08-21 17:59:00,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-21 17:59:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 537 transitions. [2020-08-21 17:59:00,667 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 537 transitions. Word has length 63 [2020-08-21 17:59:00,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 17:59:00,667 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 537 transitions. [2020-08-21 17:59:00,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 17:59:00,667 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 537 transitions. [2020-08-21 17:59:00,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-21 17:59:00,671 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 17:59:00,671 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] [2020-08-21 17:59:00,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 17:59:00,672 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 17:59:00,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 17:59:00,672 INFO L82 PathProgramCache]: Analyzing trace with hash -910069242, now seen corresponding path program 1 times [2020-08-21 17:59:00,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 17:59:00,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618302580] [2020-08-21 17:59:00,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 17:59:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-21 17:59:00,728 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-21 17:59:00,728 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-21 17:59:00,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 17:59:00,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 05:59:00 BoogieIcfgContainer [2020-08-21 17:59:00,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 17:59:00,763 INFO L168 Benchmark]: Toolchain (without parser) took 12766.41 ms. Allocated memory was 141.0 MB in the beginning and 452.5 MB in the end (delta: 311.4 MB). Free memory was 101.8 MB in the beginning and 241.7 MB in the end (delta: -139.8 MB). Peak memory consumption was 171.6 MB. Max. memory is 7.1 GB. [2020-08-21 17:59:00,764 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 17:59:00,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.21 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 173.7 MB in the end (delta: -72.0 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2020-08-21 17:59:00,766 INFO L168 Benchmark]: Boogie Preprocessor took 120.12 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 169.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-08-21 17:59:00,767 INFO L168 Benchmark]: RCFGBuilder took 1057.28 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.8 MB in the beginning and 196.3 MB in the end (delta: -26.5 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-08-21 17:59:00,768 INFO L168 Benchmark]: TraceAbstraction took 10903.82 ms. Allocated memory was 234.9 MB in the beginning and 452.5 MB in the end (delta: 217.6 MB). Free memory was 196.3 MB in the beginning and 241.7 MB in the end (delta: -45.4 MB). Peak memory consumption was 172.2 MB. Max. memory is 7.1 GB. [2020-08-21 17:59:00,771 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 678.21 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.6 MB in the beginning and 173.7 MB in the end (delta: -72.0 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.12 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 169.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1057.28 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.8 MB in the beginning and 196.3 MB in the end (delta: -26.5 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10903.82 ms. Allocated memory was 234.9 MB in the beginning and 452.5 MB in the end (delta: 217.6 MB). Free memory was 196.3 MB in the beginning and 241.7 MB in the end (delta: -45.4 MB). Peak memory consumption was 172.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] 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() [L441] COND TRUE waterLevel < 2 [L442] 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 FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 451 SDtfs, 636 SDslu, 358 SDs, 0 SdLazy, 1778 SolverSat, 351 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=441occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 61524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...