/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 21:45:06,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 21:45:06,601 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 21:45:06,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 21:45:06,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 21:45:06,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 21:45:06,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 21:45:06,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 21:45:06,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 21:45:06,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 21:45:06,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 21:45:06,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 21:45:06,670 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 21:45:06,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 21:45:06,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 21:45:06,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 21:45:06,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 21:45:06,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 21:45:06,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 21:45:06,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 21:45:06,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 21:45:06,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 21:45:06,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 21:45:06,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 21:45:06,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 21:45:06,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 21:45:06,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 21:45:06,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 21:45:06,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 21:45:06,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 21:45:06,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 21:45:06,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 21:45:06,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 21:45:06,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 21:45:06,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 21:45:06,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 21:45:06,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 21:45:06,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 21:45:06,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 21:45:06,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 21:45:06,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 21:45:06,715 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 [2020-08-18 21:45:06,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 21:45:06,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 21:45:06,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 21:45:06,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 21:45:06,760 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 21:45:06,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 21:45:06,761 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 21:45:06,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 21:45:06,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 21:45:06,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 21:45:06,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 21:45:06,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 21:45:06,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 21:45:06,764 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 21:45:06,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 21:45:06,764 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 21:45:06,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 21:45:06,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 21:45:06,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 21:45:06,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 21:45:06,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 21:45:06,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:45:06,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 21:45:06,766 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 21:45:06,766 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 21:45:06,766 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 21:45:06,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 21:45:06,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 21:45:06,767 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 21:45:06,767 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=5;interpolation-heuristic=NARROWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=NARROWEST; [2020-08-18 21:45:07,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 21:45:07,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 21:45:07,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 21:45:07,075 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 21:45:07,075 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 21:45:07,076 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-08-18 21:45:07,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/344fc7d3a/3bb2bf138b144024808a5d24e05e6b0d/FLAG022f126c9 [2020-08-18 21:45:07,688 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 21:45:07,689 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-08-18 21:45:07,703 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/344fc7d3a/3bb2bf138b144024808a5d24e05e6b0d/FLAG022f126c9 [2020-08-18 21:45:08,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/344fc7d3a/3bb2bf138b144024808a5d24e05e6b0d [2020-08-18 21:45:08,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 21:45:08,018 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 21:45:08,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 21:45:08,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 21:45:08,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 21:45:08,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:45:08" (1/1) ... [2020-08-18 21:45:08,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21046f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08, skipping insertion in model container [2020-08-18 21:45:08,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:45:08" (1/1) ... [2020-08-18 21:45:08,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 21:45:08,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 21:45:08,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:45:08,548 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 21:45:08,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:45:08,684 INFO L208 MainTranslator]: Completed translation [2020-08-18 21:45:08,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08 WrapperNode [2020-08-18 21:45:08,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 21:45:08,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 21:45:08,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 21:45:08,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 21:45:08,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08" (1/1) ... [2020-08-18 21:45:08,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08" (1/1) ... [2020-08-18 21:45:08,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08" (1/1) ... [2020-08-18 21:45:08,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08" (1/1) ... [2020-08-18 21:45:08,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08" (1/1) ... [2020-08-18 21:45:08,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08" (1/1) ... [2020-08-18 21:45:08,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08" (1/1) ... [2020-08-18 21:45:08,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 21:45:08,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 21:45:08,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 21:45:08,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 21:45:08,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08" (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 [2020-08-18 21:45:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 21:45:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 21:45:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 21:45:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 21:45:08,865 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 21:45:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 21:45:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 21:45:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 21:45:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 21:45:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 21:45:08,866 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 21:45:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 21:45:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 21:45:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 21:45:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 21:45:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 21:45:08,867 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 21:45:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 21:45:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 21:45:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 21:45:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 21:45:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 21:45:08,868 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 21:45:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 21:45:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 21:45:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 21:45:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 21:45:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 21:45:08,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 21:45:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 21:45:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 21:45:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 21:45:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-18 21:45:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 21:45:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 21:45:08,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 21:45:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 21:45:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 21:45:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 21:45:08,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 21:45:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 21:45:08,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 21:45:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 21:45:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 21:45:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 21:45:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 21:45:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 21:45:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 21:45:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 21:45:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 21:45:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 21:45:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 21:45:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 21:45:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 21:45:08,873 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 21:45:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 21:45:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 21:45:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 21:45:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 21:45:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 21:45:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 21:45:08,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 21:45:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 21:45:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 21:45:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 21:45:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 21:45:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 21:45:08,875 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 21:45:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 21:45:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-18 21:45:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 21:45:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 21:45:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 21:45:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 21:45:08,876 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 21:45:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 21:45:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 21:45:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 21:45:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 21:45:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 21:45:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 21:45:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 21:45:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 21:45:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 21:45:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 21:45:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 21:45:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 21:45:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 21:45:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 21:45:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 21:45:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 21:45:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 21:45:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 21:45:08,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 21:45:09,972 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 21:45:09,972 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 21:45:09,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:45:09 BoogieIcfgContainer [2020-08-18 21:45:09,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 21:45:09,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 21:45:09,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 21:45:09,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 21:45:09,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 09:45:08" (1/3) ... [2020-08-18 21:45:09,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3950dc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:45:09, skipping insertion in model container [2020-08-18 21:45:09,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:45:08" (2/3) ... [2020-08-18 21:45:09,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3950dc7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:45:09, skipping insertion in model container [2020-08-18 21:45:09,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:45:09" (3/3) ... [2020-08-18 21:45:09,987 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-08-18 21:45:09,997 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 21:45:10,006 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 21:45:10,021 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 21:45:10,046 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 21:45:10,047 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 21:45:10,047 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 21:45:10,047 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 21:45:10,047 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 21:45:10,048 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 21:45:10,048 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 21:45:10,048 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 21:45:10,078 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-08-18 21:45:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 21:45:10,090 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:45:10,091 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] [2020-08-18 21:45:10,092 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:45:10,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:45:10,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1613949641, now seen corresponding path program 1 times [2020-08-18 21:45:10,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:45:10,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625442607] [2020-08-18 21:45:10,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:45:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:10,801 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:45:10,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:45:10,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:10,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:45:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:10,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:45:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:10,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:45:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:10,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:45:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:10,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 21:45:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:10,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:45:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:10,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 21:45:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:10,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:45:10,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625442607] [2020-08-18 21:45:10,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:45:10,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 21:45:10,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168043182] [2020-08-18 21:45:10,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 21:45:10,980 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:45:10,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 21:45:10,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:45:10,999 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 3 states. [2020-08-18 21:45:12,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:45:12,272 INFO L93 Difference]: Finished difference Result 322 states and 421 transitions. [2020-08-18 21:45:12,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 21:45:12,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 21:45:12,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:45:12,290 INFO L225 Difference]: With dead ends: 322 [2020-08-18 21:45:12,291 INFO L226 Difference]: Without dead ends: 174 [2020-08-18 21:45:12,296 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 [2020-08-18 21:45:12,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-08-18 21:45:12,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 139. [2020-08-18 21:45:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-08-18 21:45:12,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2020-08-18 21:45:12,401 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 52 [2020-08-18 21:45:12,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:45:12,401 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2020-08-18 21:45:12,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 21:45:12,402 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2020-08-18 21:45:12,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 21:45:12,408 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:45:12,408 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] [2020-08-18 21:45:12,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 21:45:12,408 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:45:12,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:45:12,409 INFO L82 PathProgramCache]: Analyzing trace with hash -404683850, now seen corresponding path program 1 times [2020-08-18 21:45:12,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:45:12,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1375904016] [2020-08-18 21:45:12,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:45:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:12,735 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:45:12,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:45:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:12,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:45:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:12,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:45:12,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:12,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:45:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:12,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:45:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:12,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 21:45:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:12,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 21:45:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:12,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 21:45:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:12,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:45:12,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1375904016] [2020-08-18 21:45:12,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:45:12,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 21:45:12,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83641029] [2020-08-18 21:45:12,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 21:45:12,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:45:12,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 21:45:12,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 21:45:12,786 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 4 states. [2020-08-18 21:45:13,238 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:45:14,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:45:14,155 INFO L93 Difference]: Finished difference Result 245 states and 300 transitions. [2020-08-18 21:45:14,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 21:45:14,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 21:45:14,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:45:14,159 INFO L225 Difference]: With dead ends: 245 [2020-08-18 21:45:14,160 INFO L226 Difference]: Without dead ends: 158 [2020-08-18 21:45:14,161 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 [2020-08-18 21:45:14,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-08-18 21:45:14,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 130. [2020-08-18 21:45:14,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-08-18 21:45:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2020-08-18 21:45:14,203 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 53 [2020-08-18 21:45:14,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:45:14,204 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2020-08-18 21:45:14,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 21:45:14,204 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2020-08-18 21:45:14,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-08-18 21:45:14,207 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:45:14,207 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] [2020-08-18 21:45:14,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 21:45:14,208 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:45:14,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:45:14,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1069064851, now seen corresponding path program 1 times [2020-08-18 21:45:14,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:45:14,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351508243] [2020-08-18 21:45:14,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:45:14,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:14,565 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:45:14,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:45:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:14,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:45:14,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:14,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:45:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:14,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:45:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:14,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:45:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:14,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:45:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:14,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 21:45:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:14,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 21:45:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:14,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:45:14,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351508243] [2020-08-18 21:45:14,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:45:14,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 21:45:14,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672550222] [2020-08-18 21:45:14,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 21:45:14,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:45:14,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 21:45:14,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:45:14,684 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 8 states. [2020-08-18 21:45:15,058 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:45:15,382 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:45:15,629 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:45:15,858 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:45:16,571 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:45:18,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:45:18,490 INFO L93 Difference]: Finished difference Result 451 states and 560 transitions. [2020-08-18 21:45:18,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 21:45:18,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-08-18 21:45:18,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:45:18,497 INFO L225 Difference]: With dead ends: 451 [2020-08-18 21:45:18,497 INFO L226 Difference]: Without dead ends: 345 [2020-08-18 21:45:18,498 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 [2020-08-18 21:45:18,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2020-08-18 21:45:18,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 280. [2020-08-18 21:45:18,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-08-18 21:45:18,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 339 transitions. [2020-08-18 21:45:18,571 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 339 transitions. Word has length 58 [2020-08-18 21:45:18,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:45:18,571 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 339 transitions. [2020-08-18 21:45:18,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 21:45:18,571 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 339 transitions. [2020-08-18 21:45:18,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 21:45:18,575 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:45:18,575 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] [2020-08-18 21:45:18,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 21:45:18,575 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:45:18,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:45:18,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1575246874, now seen corresponding path program 1 times [2020-08-18 21:45:18,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:45:18,576 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949189869] [2020-08-18 21:45:18,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:45:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,902 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:45:18,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:45:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:45:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:45:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:45:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:45:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 21:45:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 21:45:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 21:45:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 21:45:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:45:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:45:18,992 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949189869] [2020-08-18 21:45:18,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:45:18,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 21:45:18,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689786689] [2020-08-18 21:45:18,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 21:45:18,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:45:18,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 21:45:18,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:45:18,994 INFO L87 Difference]: Start difference. First operand 280 states and 339 transitions. Second operand 8 states. [2020-08-18 21:45:19,338 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:45:20,723 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:45:21,119 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:45:21,374 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:45:21,627 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:45:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:45:22,458 INFO L93 Difference]: Finished difference Result 863 states and 1137 transitions. [2020-08-18 21:45:22,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 21:45:22,459 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-18 21:45:22,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:45:22,465 INFO L225 Difference]: With dead ends: 863 [2020-08-18 21:45:22,465 INFO L226 Difference]: Without dead ends: 607 [2020-08-18 21:45:22,468 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 [2020-08-18 21:45:22,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-08-18 21:45:22,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 537. [2020-08-18 21:45:22,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-08-18 21:45:22,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 663 transitions. [2020-08-18 21:45:22,590 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 663 transitions. Word has length 63 [2020-08-18 21:45:22,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:45:22,591 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 663 transitions. [2020-08-18 21:45:22,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 21:45:22,591 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 663 transitions. [2020-08-18 21:45:22,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 21:45:22,595 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:45:22,596 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] [2020-08-18 21:45:22,596 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 21:45:22,596 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:45:22,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:45:22,597 INFO L82 PathProgramCache]: Analyzing trace with hash 730381356, now seen corresponding path program 1 times [2020-08-18 21:45:22,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:45:22,597 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911586411] [2020-08-18 21:45:22,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:45:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 21:45:22,657 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 21:45:22,657 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 21:45:22,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 21:45:22,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 09:45:22 BoogieIcfgContainer [2020-08-18 21:45:22,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 21:45:22,685 INFO L168 Benchmark]: Toolchain (without parser) took 14667.42 ms. Allocated memory was 141.0 MB in the beginning and 470.3 MB in the end (delta: 329.3 MB). Free memory was 103.3 MB in the beginning and 355.0 MB in the end (delta: -251.7 MB). Peak memory consumption was 77.5 MB. Max. memory is 7.1 GB. [2020-08-18 21:45:22,686 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 21:45:22,687 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.79 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.1 MB in the beginning and 172.4 MB in the end (delta: -69.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-08-18 21:45:22,688 INFO L168 Benchmark]: Boogie Preprocessor took 110.75 ms. Allocated memory is still 204.5 MB. Free memory was 172.4 MB in the beginning and 167.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-08-18 21:45:22,689 INFO L168 Benchmark]: RCFGBuilder took 1181.49 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 167.7 MB in the beginning and 194.5 MB in the end (delta: -26.8 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-08-18 21:45:22,689 INFO L168 Benchmark]: TraceAbstraction took 12704.26 ms. Allocated memory was 236.5 MB in the beginning and 470.3 MB in the end (delta: 233.8 MB). Free memory was 194.5 MB in the beginning and 355.0 MB in the end (delta: -160.6 MB). Peak memory consumption was 73.3 MB. Max. memory is 7.1 GB. [2020-08-18 21:45:22,693 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.79 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 103.1 MB in the beginning and 172.4 MB in the end (delta: -69.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.75 ms. Allocated memory is still 204.5 MB. Free memory was 172.4 MB in the beginning and 167.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1181.49 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 167.7 MB in the beginning and 194.5 MB in the end (delta: -26.8 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12704.26 ms. Allocated memory was 236.5 MB in the beginning and 470.3 MB in the end (delta: 233.8 MB). Free memory was 194.5 MB in the beginning and 355.0 MB in the end (delta: -160.6 MB). Peak memory consumption was 73.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 [L538] COND TRUE 1 [L540] COND TRUE splverifierCounter < 4 [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) [L550] CALL waterRise() [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 [L550] RET waterRise() [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) [L578] CALL stopSystem() [L508] COND FALSE !(\read(pumpRunning)) [L515] systemActive = 0 [L578] RET stopSystem() [L585] CALL timeShift() [L334] COND FALSE !(\read(pumpRunning)) [L341] COND FALSE !(\read(systemActive)) [L349] CALL __utac_acc__Specification3_spec__1() [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L190] CALL, EXPR isMethaneLevelCritical() [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); [L190] RET, EXPR isMethaneLevelCritical() [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L196] CALL, EXPR getWaterLevel() [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); [L196] RET, EXPR getWaterLevel() [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L200] CALL, EXPR isPumpRunning() [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); [L200] RET, EXPR isPumpRunning() [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) [L206] CALL __automaton_fail() [L221] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 531 SDtfs, 757 SDslu, 420 SDs, 0 SdLazy, 2075 SolverSat, 445 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s 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=537occurred 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: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 198 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 62058 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...