/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:44:03,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:44:03,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:44:03,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:44:03,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:44:03,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:44:03,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:44:03,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:44:03,710 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:44:03,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:44:03,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:44:03,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:44:03,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:44:03,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:44:03,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:44:03,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:44:03,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:44:03,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:44:03,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:44:03,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:44:03,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:44:03,741 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:44:03,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:44:03,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:44:03,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:44:03,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:44:03,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:44:03,748 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:44:03,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:44:03,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:44:03,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:44:03,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:44:03,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:44:03,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:44:03,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:44:03,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:44:03,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:44:03,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:44:03,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:44:03,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:44:03,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:44:03,759 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 [2020-07-07 10:44:03,789 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:44:03,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:44:03,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:44:03,794 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:44:03,794 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:44:03,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:44:03,794 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:44:03,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:44:03,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:44:03,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:44:03,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:44:03,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:44:03,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:44:03,798 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:44:03,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:44:03,799 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:44:03,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:44:03,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:44:03,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:44:03,799 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:44:03,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:44:03,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:44:03,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:44:03,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:44:03,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:44:03,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:44:03,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:44:03,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:44:03,801 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:44:03,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:44:04,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:44:04,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:44:04,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:44:04,091 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:44:04,091 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:44:04,092 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-07-07 10:44:04,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e686a761/b5285bd3d7754220ad5fb8720574fa19/FLAG01ce1488a [2020-07-07 10:44:04,698 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:44:04,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product24.cil.c [2020-07-07 10:44:04,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e686a761/b5285bd3d7754220ad5fb8720574fa19/FLAG01ce1488a [2020-07-07 10:44:05,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e686a761/b5285bd3d7754220ad5fb8720574fa19 [2020-07-07 10:44:05,015 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:44:05,016 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:44:05,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:44:05,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:44:05,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:44:05,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:44:05" (1/1) ... [2020-07-07 10:44:05,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce259d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05, skipping insertion in model container [2020-07-07 10:44:05,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:44:05" (1/1) ... [2020-07-07 10:44:05,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:44:05,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:44:05,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:44:05,561 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:44:05,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:44:05,732 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:44:05,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05 WrapperNode [2020-07-07 10:44:05,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:44:05,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:44:05,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:44:05,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:44:05,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05" (1/1) ... [2020-07-07 10:44:05,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05" (1/1) ... [2020-07-07 10:44:05,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05" (1/1) ... [2020-07-07 10:44:05,765 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05" (1/1) ... [2020-07-07 10:44:05,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05" (1/1) ... [2020-07-07 10:44:05,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05" (1/1) ... [2020-07-07 10:44:05,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05" (1/1) ... [2020-07-07 10:44:05,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:44:05,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:44:05,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:44:05,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:44:05,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05" (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 [2020-07-07 10:44:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:44:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:44:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:44:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:44:05,886 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:44:05,886 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:44:05,886 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-07 10:44:05,886 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:44:05,886 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:44:05,886 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:44:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:44:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:44:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:44:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 10:44:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 10:44:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 10:44:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:44:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 10:44:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:44:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:44:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:44:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:44:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:44:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:44:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:44:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:44:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:44:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:44:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:44:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:44:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:44:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:44:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:44:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:44:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:44:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 10:44:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:44:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:44:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:44:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:44:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:44:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:44:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:44:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:44:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:44:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:44:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:44:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 10:44:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:44:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:44:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:44:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:44:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:44:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 10:44:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 10:44:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 10:44:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:44:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:44:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 10:44:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-07 10:44:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:44:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:44:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:44:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:44:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:44:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:44:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:44:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:44:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:44:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:44:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:44:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:44:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:44:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:44:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:44:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:44:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:44:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:44:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:44:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:44:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:44:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:44:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:44:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:44:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:44:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:44:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:44:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:44:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:44:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:44:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:44:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:44:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:44:05,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:44:06,926 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:44:06,926 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:44:06,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:44:06 BoogieIcfgContainer [2020-07-07 10:44:06,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:44:06,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:44:06,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:44:06,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:44:06,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:44:05" (1/3) ... [2020-07-07 10:44:06,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6362fd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:44:06, skipping insertion in model container [2020-07-07 10:44:06,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:44:05" (2/3) ... [2020-07-07 10:44:06,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6362fd38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:44:06, skipping insertion in model container [2020-07-07 10:44:06,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:44:06" (3/3) ... [2020-07-07 10:44:06,945 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2020-07-07 10:44:06,955 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:44:06,962 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:44:06,973 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:44:06,993 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:44:06,994 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:44:06,994 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:44:06,994 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:44:06,994 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:44:06,994 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:44:06,994 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:44:06,994 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:44:07,018 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states. [2020-07-07 10:44:07,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 10:44:07,029 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:44:07,030 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] [2020-07-07 10:44:07,030 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:44:07,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:44:07,036 INFO L82 PathProgramCache]: Analyzing trace with hash -586231627, now seen corresponding path program 1 times [2020-07-07 10:44:07,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:44:07,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324562805] [2020-07-07 10:44:07,045 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:44:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:07,705 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:44:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:44:07,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324562805] [2020-07-07 10:44:07,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:44:07,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:44:07,792 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835253277] [2020-07-07 10:44:07,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:44:07,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:44:07,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:44:07,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:44:07,815 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 3 states. [2020-07-07 10:44:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:44:08,971 INFO L93 Difference]: Finished difference Result 314 states and 413 transitions. [2020-07-07 10:44:08,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:44:08,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-07 10:44:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:44:08,988 INFO L225 Difference]: With dead ends: 314 [2020-07-07 10:44:08,989 INFO L226 Difference]: Without dead ends: 170 [2020-07-07 10:44:08,994 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 [2020-07-07 10:44:09,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-07 10:44:09,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 135. [2020-07-07 10:44:09,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-07-07 10:44:09,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2020-07-07 10:44:09,084 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 52 [2020-07-07 10:44:09,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:44:09,085 INFO L479 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2020-07-07 10:44:09,085 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:44:09,085 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2020-07-07 10:44:09,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-07 10:44:09,089 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:44:09,090 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] [2020-07-07 10:44:09,090 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:44:09,090 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:44:09,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:44:09,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1405243585, now seen corresponding path program 1 times [2020-07-07 10:44:09,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:44:09,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875940732] [2020-07-07 10:44:09,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:44:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:09,444 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:44:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:09,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:44:09,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875940732] [2020-07-07 10:44:09,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:44:09,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:44:09,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113342936] [2020-07-07 10:44:09,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:44:09,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:44:09,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:44:09,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:44:09,494 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 4 states. [2020-07-07 10:44:09,940 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:44:10,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:44:10,861 INFO L93 Difference]: Finished difference Result 237 states and 292 transitions. [2020-07-07 10:44:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:44:10,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-07 10:44:10,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:44:10,865 INFO L225 Difference]: With dead ends: 237 [2020-07-07 10:44:10,865 INFO L226 Difference]: Without dead ends: 154 [2020-07-07 10:44:10,867 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 [2020-07-07 10:44:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-07 10:44:10,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 126. [2020-07-07 10:44:10,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-07 10:44:10,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 148 transitions. [2020-07-07 10:44:10,908 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 148 transitions. Word has length 53 [2020-07-07 10:44:10,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:44:10,908 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 148 transitions. [2020-07-07 10:44:10,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:44:10,908 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 148 transitions. [2020-07-07 10:44:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-07 10:44:10,911 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:44:10,911 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] [2020-07-07 10:44:10,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:44:10,912 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:44:10,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:44:10,912 INFO L82 PathProgramCache]: Analyzing trace with hash 340068721, now seen corresponding path program 1 times [2020-07-07 10:44:10,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:44:10,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898905272] [2020-07-07 10:44:10,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:44:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:11,242 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:44:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:11,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:11,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:11,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:44:11,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898905272] [2020-07-07 10:44:11,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:44:11,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:44:11,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195532434] [2020-07-07 10:44:11,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:44:11,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:44:11,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:44:11,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:44:11,377 INFO L87 Difference]: Start difference. First operand 126 states and 148 transitions. Second operand 8 states. [2020-07-07 10:44:11,781 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:44:12,140 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:12,404 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:12,625 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:13,417 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:44:15,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:44:15,397 INFO L93 Difference]: Finished difference Result 439 states and 548 transitions. [2020-07-07 10:44:15,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:44:15,398 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-07 10:44:15,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:44:15,427 INFO L225 Difference]: With dead ends: 439 [2020-07-07 10:44:15,427 INFO L226 Difference]: Without dead ends: 337 [2020-07-07 10:44:15,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-07 10:44:15,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-07-07 10:44:15,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 272. [2020-07-07 10:44:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-07-07 10:44:15,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 331 transitions. [2020-07-07 10:44:15,508 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 331 transitions. Word has length 58 [2020-07-07 10:44:15,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:44:15,508 INFO L479 AbstractCegarLoop]: Abstraction has 272 states and 331 transitions. [2020-07-07 10:44:15,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:44:15,508 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 331 transitions. [2020-07-07 10:44:15,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-07 10:44:15,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:44:15,512 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] [2020-07-07 10:44:15,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:44:15,513 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:44:15,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:44:15,513 INFO L82 PathProgramCache]: Analyzing trace with hash -805179876, now seen corresponding path program 1 times [2020-07-07 10:44:15,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:44:15,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389900825] [2020-07-07 10:44:15,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:44:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,837 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:44:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:44:15,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389900825] [2020-07-07 10:44:15,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:44:15,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:44:15,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310466170] [2020-07-07 10:44:15,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:44:15,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:44:15,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:44:15,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:44:15,934 INFO L87 Difference]: Start difference. First operand 272 states and 331 transitions. Second operand 8 states. [2020-07-07 10:44:16,378 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:44:17,782 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:18,133 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:18,443 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:44:18,711 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:44:19,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:44:19,496 INFO L93 Difference]: Finished difference Result 839 states and 1103 transitions. [2020-07-07 10:44:19,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 10:44:19,499 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-07 10:44:19,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:44:19,505 INFO L225 Difference]: With dead ends: 839 [2020-07-07 10:44:19,506 INFO L226 Difference]: Without dead ends: 591 [2020-07-07 10:44:19,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:44:19,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2020-07-07 10:44:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 521. [2020-07-07 10:44:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-07-07 10:44:19,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 649 transitions. [2020-07-07 10:44:19,683 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 649 transitions. Word has length 63 [2020-07-07 10:44:19,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:44:19,683 INFO L479 AbstractCegarLoop]: Abstraction has 521 states and 649 transitions. [2020-07-07 10:44:19,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:44:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 649 transitions. [2020-07-07 10:44:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-07 10:44:19,688 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:44:19,689 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] [2020-07-07 10:44:19,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:44:19,689 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:44:19,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:44:19,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1401738146, now seen corresponding path program 1 times [2020-07-07 10:44:19,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:44:19,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500445050] [2020-07-07 10:44:19,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:44:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:19,976 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:44:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:44:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:44:20,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500445050] [2020-07-07 10:44:20,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:44:20,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:44:20,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338027819] [2020-07-07 10:44:20,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:44:20,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:44:20,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:44:20,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:44:20,106 INFO L87 Difference]: Start difference. First operand 521 states and 649 transitions. Second operand 6 states. [2020-07-07 10:44:20,456 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:44:21,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:44:21,289 INFO L93 Difference]: Finished difference Result 890 states and 1163 transitions. [2020-07-07 10:44:21,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:44:21,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-07-07 10:44:21,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:44:21,293 INFO L225 Difference]: With dead ends: 890 [2020-07-07 10:44:21,294 INFO L226 Difference]: Without dead ends: 393 [2020-07-07 10:44:21,296 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:44:21,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2020-07-07 10:44:21,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 343. [2020-07-07 10:44:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-07-07 10:44:21,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 394 transitions. [2020-07-07 10:44:21,358 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 394 transitions. Word has length 67 [2020-07-07 10:44:21,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:44:21,359 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 394 transitions. [2020-07-07 10:44:21,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:44:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 394 transitions. [2020-07-07 10:44:21,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-07 10:44:21,361 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:44:21,361 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] [2020-07-07 10:44:21,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:44:21,361 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:44:21,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:44:21,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1293290686, now seen corresponding path program 1 times [2020-07-07 10:44:21,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:44:21,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671337642] [2020-07-07 10:44:21,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:44:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:44:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:44:21,521 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:44:21,522 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:44:21,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 10:44:21,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:44:21 BoogieIcfgContainer [2020-07-07 10:44:21,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:44:21,669 INFO L168 Benchmark]: Toolchain (without parser) took 16652.71 ms. Allocated memory was 146.8 MB in the beginning and 513.3 MB in the end (delta: 366.5 MB). Free memory was 103.2 MB in the beginning and 365.5 MB in the end (delta: -262.3 MB). Peak memory consumption was 104.2 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:21,670 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 146.8 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 10:44:21,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.32 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 103.2 MB in the beginning and 174.3 MB in the end (delta: -71.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:21,671 INFO L168 Benchmark]: Boogie Preprocessor took 87.53 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 169.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:21,672 INFO L168 Benchmark]: RCFGBuilder took 1113.65 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.5 MB in the beginning and 194.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:21,673 INFO L168 Benchmark]: TraceAbstraction took 14729.93 ms. Allocated memory was 234.9 MB in the beginning and 513.3 MB in the end (delta: 278.4 MB). Free memory was 194.0 MB in the beginning and 365.5 MB in the end (delta: -171.5 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. [2020-07-07 10:44:21,677 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 146.8 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.32 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 103.2 MB in the beginning and 174.3 MB in the end (delta: -71.1 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.53 ms. Allocated memory is still 204.5 MB. Free memory was 174.3 MB in the beginning and 169.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1113.65 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 169.5 MB in the beginning and 194.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14729.93 ms. Allocated memory was 234.9 MB in the beginning and 513.3 MB in the end (delta: 278.4 MB). Free memory was 194.0 MB in the beginning and 365.5 MB in the end (delta: -171.5 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L369] int cleanupTimeShifts = 4; [L637] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=173, \old(head)=166, \old(head)=176, \old(methaneLevelCritical)=147, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] int retValue_acc ; [L446] 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] [L450] 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] [L451] 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] [L452] 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] [L949] int retValue_acc ; [L952] retValue_acc = 1 [L953] 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] [L452] 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] [L452] tmp = valid_product() [L454] 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] [L456] 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] [L457] 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] [L436] 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] [L266] int splverifierCounter ; [L267] int tmp ; [L268] int tmp___0 ; [L269] int tmp___1 ; [L270] int tmp___2 ; [L273] 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] [L275] 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] [L277] 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] [L283] tmp = __VERIFIER_nondet_int() [L285] 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] [L287] 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] [L852] COND TRUE waterLevel < 2 [L853] 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] [L287] 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] [L293] tmp___0 = __VERIFIER_nondet_int() [L295] 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] [L303] tmp___2 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___2)) [L311] tmp___1 = __VERIFIER_nondet_int() [L313] 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=-2, tmp___2=0, waterLevel=2] [L315] 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] [L242] 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] [L249] 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] [L315] 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=-2, tmp___2=0, waterLevel=2] [L322] 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] [L68] 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] [L75] 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] [L83] 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] [L336] int tmp ; [L337] int tmp___0 ; [L338] 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] [L342] 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] [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] 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] [L342] 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] [L342] tmp = isMethaneLevelCritical() [L344] 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] [L348] 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] [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] 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] [L348] 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] [L348] tmp___0 = getWaterLevel() [L350] 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] [L352] 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] [L175] int retValue_acc ; [L178] retValue_acc = pumpRunning [L179] 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] [L352] 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] [L352] tmp___1 = isPumpRunning() [L354] 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] [L358] 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] [L44] __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, 237 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 593 SDtfs, 897 SDslu, 441 SDs, 0 SdLazy, 2178 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=521occurred 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: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 248 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 82716 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...