/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=HIGHLEXORDER -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 19:19:20,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 19:19:20,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 19:19:20,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 19:19:20,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 19:19:20,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 19:19:20,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 19:19:20,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 19:19:20,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 19:19:20,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 19:19:20,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 19:19:20,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 19:19:20,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 19:19:20,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 19:19:20,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 19:19:20,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 19:19:20,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 19:19:20,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 19:19:20,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 19:19:20,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 19:19:20,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 19:19:20,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 19:19:20,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 19:19:20,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 19:19:20,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 19:19:20,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 19:19:20,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 19:19:20,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 19:19:20,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 19:19:20,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 19:19:20,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 19:19:20,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 19:19:20,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 19:19:20,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 19:19:20,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 19:19:20,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 19:19:20,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 19:19:20,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 19:19:20,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 19:19:20,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 19:19:20,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 19:19:20,773 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 19:19:20,812 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 19:19:20,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 19:19:20,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 19:19:20,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 19:19:20,815 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 19:19:20,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 19:19:20,815 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 19:19:20,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 19:19:20,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 19:19:20,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 19:19:20,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 19:19:20,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 19:19:20,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 19:19:20,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 19:19:20,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 19:19:20,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 19:19:20,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 19:19:20,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 19:19:20,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 19:19:20,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 19:19:20,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 19:19:20,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 19:19:20,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 19:19:20,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 19:19:20,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 19:19:20,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 19:19:20,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 19:19:20,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 19:19:20,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 19:19:20,822 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=HIGHLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER; [2020-08-18 19:19:21,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 19:19:21,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 19:19:21,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 19:19:21,121 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 19:19:21,122 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 19:19:21,123 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c [2020-08-18 19:19:21,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d73d1bbc5/d4945f69e68a44c890e9f4a1daeaffec/FLAG344164c7f [2020-08-18 19:19:21,716 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 19:19:21,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product09.cil.c [2020-08-18 19:19:21,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d73d1bbc5/d4945f69e68a44c890e9f4a1daeaffec/FLAG344164c7f [2020-08-18 19:19:22,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d73d1bbc5/d4945f69e68a44c890e9f4a1daeaffec [2020-08-18 19:19:22,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 19:19:22,040 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 19:19:22,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 19:19:22,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 19:19:22,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 19:19:22,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:22" (1/1) ... [2020-08-18 19:19:22,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22, skipping insertion in model container [2020-08-18 19:19:22,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:22" (1/1) ... [2020-08-18 19:19:22,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 19:19:22,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 19:19:22,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:19:22,531 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 19:19:22,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:19:22,655 INFO L208 MainTranslator]: Completed translation [2020-08-18 19:19:22,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22 WrapperNode [2020-08-18 19:19:22,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 19:19:22,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 19:19:22,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 19:19:22,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 19:19:22,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22" (1/1) ... [2020-08-18 19:19:22,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22" (1/1) ... [2020-08-18 19:19:22,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22" (1/1) ... [2020-08-18 19:19:22,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22" (1/1) ... [2020-08-18 19:19:22,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22" (1/1) ... [2020-08-18 19:19:22,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22" (1/1) ... [2020-08-18 19:19:22,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22" (1/1) ... [2020-08-18 19:19:22,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 19:19:22,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 19:19:22,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 19:19:22,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 19:19:22,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22" (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 19:19:22,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 19:19:22,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 19:19:22,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 19:19:22,846 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 19:19:22,846 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 19:19:22,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 19:19:22,846 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 19:19:22,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 19:19:22,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 19:19:22,846 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 19:19:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 19:19:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 19:19:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-08-18 19:19:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 19:19:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 19:19:22,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 19:19:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 19:19:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 19:19:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 19:19:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 19:19:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 19:19:22,848 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 19:19:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 19:19:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 19:19:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 19:19:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 19:19:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 19:19:22,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 19:19:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 19:19:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 19:19:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 19:19:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 19:19:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 19:19:22,850 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 19:19:22,851 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 19:19:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 19:19:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 19:19:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 19:19:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 19:19:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 19:19:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 19:19:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 19:19:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 19:19:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 19:19:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 19:19:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 19:19:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 19:19:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 19:19:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 19:19:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 19:19:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 19:19:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 19:19:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 19:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 19:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 19:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 19:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 19:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 19:19:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 19:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 19:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-08-18 19:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 19:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 19:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 19:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 19:19:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 19:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 19:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 19:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 19:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 19:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 19:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 19:19:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 19:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 19:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 19:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 19:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 19:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 19:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 19:19:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 19:19:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 19:19:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 19:19:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 19:19:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 19:19:23,976 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 19:19:23,977 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 19:19:23,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:23 BoogieIcfgContainer [2020-08-18 19:19:23,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 19:19:23,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 19:19:23,989 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 19:19:23,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 19:19:23,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 07:19:22" (1/3) ... [2020-08-18 19:19:23,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a26ba6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:19:23, skipping insertion in model container [2020-08-18 19:19:23,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:22" (2/3) ... [2020-08-18 19:19:23,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a26ba6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:19:23, skipping insertion in model container [2020-08-18 19:19:23,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:23" (3/3) ... [2020-08-18 19:19:23,996 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product09.cil.c [2020-08-18 19:19:24,007 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 19:19:24,019 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 19:19:24,033 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 19:19:24,058 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 19:19:24,058 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 19:19:24,058 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 19:19:24,058 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 19:19:24,058 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 19:19:24,059 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 19:19:24,059 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 19:19:24,059 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 19:19:24,080 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2020-08-18 19:19:24,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 19:19:24,090 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:24,091 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 19:19:24,091 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:24,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:24,097 INFO L82 PathProgramCache]: Analyzing trace with hash -243884949, now seen corresponding path program 1 times [2020-08-18 19:19:24,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:24,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1082702621] [2020-08-18 19:19:24,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:24,712 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 19:19:24,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:19:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:24,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:19:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:24,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:19:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:24,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:19:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:24,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:19:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:24,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 19:19:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:24,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 19:19:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:24,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 19:19:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:24,862 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 19:19:24,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1082702621] [2020-08-18 19:19:24,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:19:24,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 19:19:24,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834800113] [2020-08-18 19:19:24,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 19:19:24,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:19:24,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 19:19:24,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 19:19:24,910 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 3 states. [2020-08-18 19:19:25,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:19:25,811 INFO L93 Difference]: Finished difference Result 211 states and 284 transitions. [2020-08-18 19:19:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 19:19:25,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 19:19:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:19:25,827 INFO L225 Difference]: With dead ends: 211 [2020-08-18 19:19:25,828 INFO L226 Difference]: Without dead ends: 115 [2020-08-18 19:19:25,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 19:19:25,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-08-18 19:19:25,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 87. [2020-08-18 19:19:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-08-18 19:19:25,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2020-08-18 19:19:25,909 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 52 [2020-08-18 19:19:25,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:19:25,909 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2020-08-18 19:19:25,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 19:19:25,910 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2020-08-18 19:19:25,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 19:19:25,913 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:25,913 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 19:19:25,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 19:19:25,914 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:25,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:25,914 INFO L82 PathProgramCache]: Analyzing trace with hash -665178200, now seen corresponding path program 1 times [2020-08-18 19:19:25,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:25,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565829840] [2020-08-18 19:19:25,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,258 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 19:19:26,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:19:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:19:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:19:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:19:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:19:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 19:19:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 19:19:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 19:19:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,312 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 19:19:26,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565829840] [2020-08-18 19:19:26,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:19:26,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 19:19:26,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279909757] [2020-08-18 19:19:26,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 19:19:26,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:19:26,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 19:19:26,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 19:19:26,317 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand 4 states. [2020-08-18 19:19:26,740 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 19:19:27,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:19:27,249 INFO L93 Difference]: Finished difference Result 144 states and 175 transitions. [2020-08-18 19:19:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 19:19:27,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 19:19:27,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:19:27,252 INFO L225 Difference]: With dead ends: 144 [2020-08-18 19:19:27,252 INFO L226 Difference]: Without dead ends: 99 [2020-08-18 19:19:27,253 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 19:19:27,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-08-18 19:19:27,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 78. [2020-08-18 19:19:27,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-18 19:19:27,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2020-08-18 19:19:27,306 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 53 [2020-08-18 19:19:27,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:19:27,307 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2020-08-18 19:19:27,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 19:19:27,307 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2020-08-18 19:19:27,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-18 19:19:27,309 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:27,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 19:19:27,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 19:19:27,310 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:27,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:27,310 INFO L82 PathProgramCache]: Analyzing trace with hash 884065604, now seen corresponding path program 1 times [2020-08-18 19:19:27,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:27,311 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962742407] [2020-08-18 19:19:27,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:27,608 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 19:19:27,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:19:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:27,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:19:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:27,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:19:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:27,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:19:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:27,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:19:27,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:27,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 19:19:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:27,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 19:19:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:27,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 19:19:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:27,711 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 19:19:27,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962742407] [2020-08-18 19:19:27,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:19:27,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 19:19:27,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421079240] [2020-08-18 19:19:27,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 19:19:27,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:19:27,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 19:19:27,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 19:19:27,714 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 8 states. [2020-08-18 19:19:28,071 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 19:19:28,412 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:28,652 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:28,903 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:29,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:19:29,579 INFO L93 Difference]: Finished difference Result 153 states and 189 transitions. [2020-08-18 19:19:29,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 19:19:29,579 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-18 19:19:29,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:19:29,582 INFO L225 Difference]: With dead ends: 153 [2020-08-18 19:19:29,582 INFO L226 Difference]: Without dead ends: 99 [2020-08-18 19:19:29,583 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 19:19:29,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-08-18 19:19:29,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 78. [2020-08-18 19:19:29,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-18 19:19:29,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions. [2020-08-18 19:19:29,608 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 57 [2020-08-18 19:19:29,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:19:29,608 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 88 transitions. [2020-08-18 19:19:29,608 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 19:19:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions. [2020-08-18 19:19:29,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-08-18 19:19:29,610 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:29,611 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] [2020-08-18 19:19:29,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 19:19:29,611 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:29,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:29,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1049632545, now seen corresponding path program 1 times [2020-08-18 19:19:29,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:29,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861462838] [2020-08-18 19:19:29,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,909 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 19:19:29,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:19:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:19:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:19:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:19:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:19:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-18 19:19:29,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 19:19:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 19:19:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-08-18 19:19:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:29,980 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 19:19:29,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861462838] [2020-08-18 19:19:29,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:19:29,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 19:19:29,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046580989] [2020-08-18 19:19:29,981 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 19:19:29,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:19:29,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 19:19:29,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 19:19:29,982 INFO L87 Difference]: Start difference. First operand 78 states and 88 transitions. Second operand 7 states. [2020-08-18 19:19:30,324 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 19:19:31,222 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:31,508 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:31,748 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:32,018 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 19:19:32,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:19:32,271 INFO L93 Difference]: Finished difference Result 196 states and 245 transitions. [2020-08-18 19:19:32,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 19:19:32,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 60 [2020-08-18 19:19:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:19:32,275 INFO L225 Difference]: With dead ends: 196 [2020-08-18 19:19:32,275 INFO L226 Difference]: Without dead ends: 142 [2020-08-18 19:19:32,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-08-18 19:19:32,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-08-18 19:19:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 128. [2020-08-18 19:19:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-08-18 19:19:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2020-08-18 19:19:32,309 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 60 [2020-08-18 19:19:32,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:19:32,310 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2020-08-18 19:19:32,310 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 19:19:32,310 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2020-08-18 19:19:32,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 19:19:32,312 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:32,312 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] [2020-08-18 19:19:32,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 19:19:32,313 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:32,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:32,313 INFO L82 PathProgramCache]: Analyzing trace with hash -509227045, now seen corresponding path program 1 times [2020-08-18 19:19:32,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:32,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7583637] [2020-08-18 19:19:32,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 19:19:32,365 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 19:19:32,366 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 19:19:32,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 19:19:32,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 07:19:32 BoogieIcfgContainer [2020-08-18 19:19:32,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 19:19:32,390 INFO L168 Benchmark]: Toolchain (without parser) took 10350.35 ms. Allocated memory was 141.0 MB in the beginning and 394.3 MB in the end (delta: 253.2 MB). Free memory was 103.5 MB in the beginning and 273.6 MB in the end (delta: -170.1 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:32,391 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 122.2 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-08-18 19:19:32,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.89 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 103.1 MB in the beginning and 175.5 MB in the end (delta: -72.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:32,393 INFO L168 Benchmark]: Boogie Preprocessor took 102.15 ms. Allocated memory is still 205.0 MB. Free memory was 175.5 MB in the beginning and 171.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:32,394 INFO L168 Benchmark]: RCFGBuilder took 1224.65 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 171.5 MB in the beginning and 201.7 MB in the end (delta: -30.3 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:32,395 INFO L168 Benchmark]: TraceAbstraction took 8400.39 ms. Allocated memory was 235.9 MB in the beginning and 394.3 MB in the end (delta: 158.3 MB). Free memory was 201.7 MB in the beginning and 273.6 MB in the end (delta: -71.9 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:32,398 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 122.2 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 615.89 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 103.1 MB in the beginning and 175.5 MB in the end (delta: -72.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.15 ms. Allocated memory is still 205.0 MB. Free memory was 175.5 MB in the beginning and 171.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1224.65 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 171.5 MB in the beginning and 201.7 MB in the end (delta: -30.3 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 8400.39 ms. Allocated memory was 235.9 MB in the beginning and 394.3 MB in the end (delta: 158.3 MB). Free memory was 201.7 MB in the beginning and 273.6 MB in the end (delta: -71.9 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L224] int pumpRunning = 0; [L225] int systemActive = 1; [L589] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L786] int waterLevel = 1; [L787] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L411] int retValue_acc ; [L414] retValue_acc = 1 [L415] 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() [L154] int splverifierCounter ; [L155] int tmp ; [L156] int tmp___0 ; [L157] int tmp___1 ; [L158] int tmp___2 ; [L161] splverifierCounter = 0 [L163] COND TRUE 1 [L165] COND TRUE splverifierCounter < 4 [L171] tmp = __VERIFIER_nondet_int() [L173] COND TRUE \read(tmp) [L175] CALL waterRise() [L804] COND TRUE waterLevel < 2 [L805] waterLevel = waterLevel + 1 [L175] RET waterRise() [L181] tmp___0 = __VERIFIER_nondet_int() [L183] COND FALSE !(\read(tmp___0)) [L191] tmp___2 = __VERIFIER_nondet_int() [L193] COND TRUE \read(tmp___2) [L206] CALL timeShift() [L232] COND FALSE !(\read(pumpRunning)) [L239] COND TRUE \read(systemActive) [L241] FCALL processEnvironment() [L247] CALL __utac_acc__Specification3_spec__1() [L352] int tmp ; [L353] int tmp___0 ; [L354] int tmp___1 ; [L358] CALL, EXPR isMethaneLevelCritical() [L825] int retValue_acc ; [L828] retValue_acc = methaneLevelCritical [L829] return (retValue_acc); [L358] RET, EXPR isMethaneLevelCritical() [L358] tmp = isMethaneLevelCritical() [L360] COND FALSE !(\read(tmp)) [L364] CALL, EXPR getWaterLevel() [L857] int retValue_acc ; [L860] retValue_acc = waterLevel [L861] return (retValue_acc); [L364] RET, EXPR getWaterLevel() [L364] tmp___0 = getWaterLevel() [L366] COND TRUE tmp___0 == 2 [L368] CALL, EXPR isPumpRunning() [L305] int retValue_acc ; [L308] retValue_acc = pumpRunning [L309] return (retValue_acc); [L368] RET, EXPR isPumpRunning() [L368] tmp___1 = isPumpRunning() [L370] COND FALSE !(\read(tmp___1)) [L374] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 204 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 302 SDtfs, 404 SDslu, 175 SDs, 0 SdLazy, 882 SolverSat, 230 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=0, 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, 84 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 286 NumberOfCodeBlocks, 286 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 59906 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...