/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -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-d623d84 [2020-07-20 10:42:15,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:42:15,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:42:15,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:42:15,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:42:15,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:42:15,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:42:15,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:42:15,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:42:15,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:42:15,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:42:15,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:42:15,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:42:15,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:42:15,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:42:15,808 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:42:15,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:42:15,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:42:15,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:42:15,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:42:15,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:42:15,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:42:15,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:42:15,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:42:15,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 10:42:15,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 10:42:15,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 10:42:15,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 10:42:15,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 10:42:15,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 10:42:15,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 10:42:15,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 10:42:15,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 10:42:15,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 10:42:15,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 10:42:15,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 10:42:15,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 10:42:15,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 10:42:15,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:42:15,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:42:15,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:42:15,846 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 10:42:15,866 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:42:15,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:42:15,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:42:15,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:42:15,869 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:42:15,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:42:15,870 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:42:15,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:42:15,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:42:15,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:42:15,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:42:15,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:42:15,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:42:15,872 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:42:15,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:42:15,873 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:42:15,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:42:15,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:42:15,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:42:15,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:42:15,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:42:15,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:42:15,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:42:15,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:42:15,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:42:15,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:42:15,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:15,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:42:15,875 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:42:15,875 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:42:16,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:42:16,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:42:16,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:42:16,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:42:16,156 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:42:16,157 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-07-20 10:42:16,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c22032416/a9417755e77c457d9ee298cfdba636a9/FLAGc23e08dcd [2020-07-20 10:42:16,758 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:42:16,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product40.cil.c [2020-07-20 10:42:16,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c22032416/a9417755e77c457d9ee298cfdba636a9/FLAGc23e08dcd [2020-07-20 10:42:17,052 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c22032416/a9417755e77c457d9ee298cfdba636a9 [2020-07-20 10:42:17,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:42:17,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:42:17,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:17,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:42:17,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:42:17,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:17" (1/1) ... [2020-07-20 10:42:17,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4f6707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17, skipping insertion in model container [2020-07-20 10:42:17,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:17" (1/1) ... [2020-07-20 10:42:17,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:42:17,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:42:17,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:17,643 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:42:17,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:17,757 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:42:17,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17 WrapperNode [2020-07-20 10:42:17,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:17,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:42:17,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:42:17,759 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:42:17,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17" (1/1) ... [2020-07-20 10:42:17,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17" (1/1) ... [2020-07-20 10:42:17,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17" (1/1) ... [2020-07-20 10:42:17,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17" (1/1) ... [2020-07-20 10:42:17,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17" (1/1) ... [2020-07-20 10:42:17,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17" (1/1) ... [2020-07-20 10:42:17,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17" (1/1) ... [2020-07-20 10:42:17,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:42:17,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:42:17,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:42:17,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:42:17,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-20 10:42:17,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:42:17,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:42:17,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:17,974 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 10:42:17,974 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 10:42:17,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 10:42:17,974 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 10:42:17,975 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:42:17,975 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 10:42:17,975 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 10:42:17,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 10:42:17,976 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 10:42:17,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:17,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 10:42:17,977 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 10:42:17,978 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 10:42:17,978 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 10:42:17,978 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 10:42:17,978 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 10:42:17,979 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 10:42:17,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 10:42:17,979 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 10:42:17,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 10:42:17,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 10:42:17,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 10:42:17,980 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 10:42:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 10:42:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 10:42:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 10:42:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 10:42:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 10:42:17,981 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 10:42:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 10:42:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 10:42:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 10:42:17,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 10:42:17,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 10:42:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:42:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 10:42:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 10:42:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 10:42:17,983 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 10:42:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 10:42:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 10:42:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 10:42:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 10:42:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 10:42:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 10:42:17,985 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 10:42:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 10:42:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 10:42:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 10:42:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:42:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 10:42:17,986 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 10:42:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 10:42:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 10:42:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 10:42:17,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 10:42:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 10:42:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 10:42:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:42:17,988 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 10:42:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 10:42:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 10:42:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 10:42:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 10:42:17,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 10:42:17,990 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 10:42:17,990 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 10:42:17,990 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 10:42:17,991 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 10:42:17,991 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 10:42:17,991 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 10:42:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 10:42:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 10:42:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:42:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 10:42:17,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:17,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:42:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:17,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:42:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 10:42:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 10:42:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 10:42:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:42:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 10:42:17,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:42:19,116 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:42:19,117 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 10:42:19,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:19 BoogieIcfgContainer [2020-07-20 10:42:19,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:42:19,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:42:19,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:42:19,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:42:19,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:42:17" (1/3) ... [2020-07-20 10:42:19,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40815685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:19, skipping insertion in model container [2020-07-20 10:42:19,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:17" (2/3) ... [2020-07-20 10:42:19,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40815685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:19, skipping insertion in model container [2020-07-20 10:42:19,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:19" (3/3) ... [2020-07-20 10:42:19,131 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40.cil.c [2020-07-20 10:42:19,141 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:42:19,150 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:42:19,164 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:42:19,190 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:42:19,190 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:42:19,191 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:42:19,191 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:42:19,191 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:42:19,191 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:42:19,191 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:42:19,192 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:42:19,216 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-07-20 10:42:19,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 10:42:19,227 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:19,228 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] [2020-07-20 10:42:19,229 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:19,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:19,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1613949641, now seen corresponding path program 1 times [2020-07-20 10:42:19,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:19,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721196238] [2020-07-20 10:42:19,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:19,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 10:42:19,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:19,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:19,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721196238] [2020-07-20 10:42:19,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:19,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 10:42:19,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162259343] [2020-07-20 10:42:19,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 10:42:19,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:19,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 10:42:19,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:42:19,553 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 2 states. [2020-07-20 10:42:19,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:19,593 INFO L93 Difference]: Finished difference Result 278 states and 345 transitions. [2020-07-20 10:42:19,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 10:42:19,595 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 10:42:19,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:19,609 INFO L225 Difference]: With dead ends: 278 [2020-07-20 10:42:19,609 INFO L226 Difference]: Without dead ends: 139 [2020-07-20 10:42:19,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:42:19,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-07-20 10:42:19,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-07-20 10:42:19,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-07-20 10:42:19,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2020-07-20 10:42:19,676 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 52 [2020-07-20 10:42:19,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:19,677 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2020-07-20 10:42:19,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 10:42:19,677 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2020-07-20 10:42:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 10:42:19,682 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:19,682 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] [2020-07-20 10:42:19,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:19,898 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:19,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:19,899 INFO L82 PathProgramCache]: Analyzing trace with hash -404683850, now seen corresponding path program 1 times [2020-07-20 10:42:19,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:19,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750956500] [2020-07-20 10:42:19,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:20,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:20,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 10:42:20,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:20,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:20,181 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:20,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750956500] [2020-07-20 10:42:20,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:20,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:20,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663853] [2020-07-20 10:42:20,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:20,188 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:20,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:20,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:20,189 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 3 states. [2020-07-20 10:42:20,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:20,228 INFO L93 Difference]: Finished difference Result 217 states and 255 transitions. [2020-07-20 10:42:20,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:20,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 10:42:20,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:20,232 INFO L225 Difference]: With dead ends: 217 [2020-07-20 10:42:20,233 INFO L226 Difference]: Without dead ends: 130 [2020-07-20 10:42:20,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:20,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-07-20 10:42:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-07-20 10:42:20,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-07-20 10:42:20,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2020-07-20 10:42:20,269 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 53 [2020-07-20 10:42:20,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:20,270 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2020-07-20 10:42:20,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:20,270 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2020-07-20 10:42:20,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 10:42:20,278 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:20,279 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] [2020-07-20 10:42:20,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:20,494 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:20,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:20,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1069064851, now seen corresponding path program 1 times [2020-07-20 10:42:20,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:20,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638466001] [2020-07-20 10:42:20,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:20,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 10:42:20,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:20,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:20,720 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638466001] [2020-07-20 10:42:20,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:20,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:20,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963403574] [2020-07-20 10:42:20,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:20,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:20,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:20,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:20,722 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 3 states. [2020-07-20 10:42:20,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:20,752 INFO L93 Difference]: Finished difference Result 338 states and 407 transitions. [2020-07-20 10:42:20,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:20,753 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-20 10:42:20,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:20,757 INFO L225 Difference]: With dead ends: 338 [2020-07-20 10:42:20,758 INFO L226 Difference]: Without dead ends: 232 [2020-07-20 10:42:20,759 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:20,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-07-20 10:42:20,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 226. [2020-07-20 10:42:20,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-20 10:42:20,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 271 transitions. [2020-07-20 10:42:20,785 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 271 transitions. Word has length 58 [2020-07-20 10:42:20,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:20,786 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 271 transitions. [2020-07-20 10:42:20,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:20,786 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 271 transitions. [2020-07-20 10:42:20,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 10:42:20,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:20,789 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] [2020-07-20 10:42:21,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:21,002 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:21,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:21,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1575246874, now seen corresponding path program 1 times [2020-07-20 10:42:21,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:21,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268861404] [2020-07-20 10:42:21,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:21,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 10:42:21,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:21,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:21,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268861404] [2020-07-20 10:42:21,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:21,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:42:21,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087588860] [2020-07-20 10:42:21,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:42:21,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:21,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:42:21,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:42:21,267 INFO L87 Difference]: Start difference. First operand 226 states and 271 transitions. Second operand 6 states. [2020-07-20 10:42:21,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:21,603 INFO L93 Difference]: Finished difference Result 615 states and 783 transitions. [2020-07-20 10:42:21,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:42:21,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 10:42:21,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:21,609 INFO L225 Difference]: With dead ends: 615 [2020-07-20 10:42:21,609 INFO L226 Difference]: Without dead ends: 413 [2020-07-20 10:42:21,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 10:42:21,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-07-20 10:42:21,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 409. [2020-07-20 10:42:21,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-07-20 10:42:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 508 transitions. [2020-07-20 10:42:21,647 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 508 transitions. Word has length 63 [2020-07-20 10:42:21,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:21,648 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 508 transitions. [2020-07-20 10:42:21,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:42:21,648 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 508 transitions. [2020-07-20 10:42:21,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 10:42:21,651 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:21,651 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] [2020-07-20 10:42:21,865 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:21,866 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:21,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:21,867 INFO L82 PathProgramCache]: Analyzing trace with hash 730381356, now seen corresponding path program 1 times [2020-07-20 10:42:21,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:21,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [937522785] [2020-07-20 10:42:21,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:22,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:22,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:22,449 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:42:22,449 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:42:22,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:22,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:42:22 BoogieIcfgContainer [2020-07-20 10:42:22,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:42:22,845 INFO L168 Benchmark]: Toolchain (without parser) took 5781.58 ms. Allocated memory was 138.9 MB in the beginning and 282.6 MB in the end (delta: 143.7 MB). Free memory was 101.4 MB in the beginning and 241.1 MB in the end (delta: -139.7 MB). Peak memory consumption was 118.2 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:22,846 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 10:42:22,847 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.06 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 172.3 MB in the end (delta: -71.3 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:22,848 INFO L168 Benchmark]: Boogie Preprocessor took 119.16 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 168.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:22,849 INFO L168 Benchmark]: RCFGBuilder took 1244.20 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 167.6 MB in the beginning and 197.9 MB in the end (delta: -30.2 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:22,850 INFO L168 Benchmark]: TraceAbstraction took 3718.95 ms. Allocated memory was 237.0 MB in the beginning and 282.6 MB in the end (delta: 45.6 MB). Free memory was 197.9 MB in the beginning and 241.1 MB in the end (delta: -43.3 MB). Peak memory consumption was 116.6 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:22,853 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.06 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 172.3 MB in the end (delta: -71.3 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.16 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 168.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1244.20 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 167.6 MB in the beginning and 197.9 MB in the end (delta: -30.2 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3718.95 ms. Allocated memory was 237.0 MB in the beginning and 282.6 MB in the end (delta: 45.6 MB). Free memory was 197.9 MB in the beginning and 241.1 MB in the end (delta: -43.3 MB). Peak memory consumption was 116.6 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; VAL [\old(cleanupTimeShifts)=96, \old(head)=87, \old(head)=91, \old(methaneLevelCritical)=48, \old(pumpRunning)=38, \old(systemActive)=93, \old(waterLevel)=31, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L538] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L540] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L550] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L578] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L515] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L578] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L585] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L341] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L349] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L190] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L190] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L196] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L196] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L200] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L200] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L206] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 697 SDtfs, 218 SDslu, 802 SDs, 0 SdLazy, 100 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 23550 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2709 ConjunctsInSsa, 25 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...