/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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:31:27,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:31:27,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:31:27,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:31:27,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:31:27,759 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:31:27,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:31:27,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:31:27,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:31:27,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:31:27,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:31:27,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:31:27,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:31:27,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:31:27,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:31:27,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:31:27,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:31:27,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:31:27,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:31:27,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:31:27,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:31:27,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:31:27,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:31:27,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:31:27,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:31:27,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:31:27,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:31:27,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:31:27,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:31:27,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:31:27,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:31:27,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:31:27,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:31:27,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:31:27,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:31:27,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:31:27,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:31:27,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:31:27,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:31:27,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:31:27,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:31:27,793 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 [2020-07-17 11:31:27,808 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:31:27,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:31:27,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:31:27,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:31:27,810 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:31:27,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:31:27,810 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:31:27,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:31:27,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:31:27,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:31:27,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:31:27,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:31:27,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:31:27,812 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:31:27,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:31:27,812 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:31:27,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:31:27,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:31:27,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:31:27,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:31:27,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:31:27,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:31:27,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:31:27,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:31:27,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:31:27,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:31:27,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:31:27,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:31:27,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:31:27,814 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:31:28,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:31:28,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:31:28,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:31:28,108 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:31:28,108 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:31:28,109 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-07-17 11:31:28,185 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4234ae24f/00e63f45e1ef482195392b1f2e17a22a/FLAGfbe3dd6b2 [2020-07-17 11:31:28,752 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:31:28,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-07-17 11:31:28,762 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4234ae24f/00e63f45e1ef482195392b1f2e17a22a/FLAGfbe3dd6b2 [2020-07-17 11:31:29,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4234ae24f/00e63f45e1ef482195392b1f2e17a22a [2020-07-17 11:31:29,032 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:31:29,034 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:31:29,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:31:29,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:31:29,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:31:29,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:31:29" (1/1) ... [2020-07-17 11:31:29,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dbfec79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29, skipping insertion in model container [2020-07-17 11:31:29,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:31:29" (1/1) ... [2020-07-17 11:31:29,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:31:29,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:31:29,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:31:29,555 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:31:29,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:31:29,680 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:31:29,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29 WrapperNode [2020-07-17 11:31:29,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:31:29,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:31:29,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:31:29,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:31:29,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29" (1/1) ... [2020-07-17 11:31:29,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29" (1/1) ... [2020-07-17 11:31:29,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29" (1/1) ... [2020-07-17 11:31:29,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29" (1/1) ... [2020-07-17 11:31:29,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29" (1/1) ... [2020-07-17 11:31:29,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29" (1/1) ... [2020-07-17 11:31:29,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29" (1/1) ... [2020-07-17 11:31:29,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:31:29,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:31:29,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:31:29,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:31:29,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29" (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 [2020-07-17 11:31:29,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:31:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:31:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:31:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:31:29,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:31:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:31:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:31:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:31:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:31:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:31:29,839 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:31:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:31:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:31:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:31:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:31:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:31:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:31:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:31:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:31:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:31:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:31:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:31:29,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:31:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:31:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:31:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:31:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:31:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:31:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 11:31:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 11:31:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:31:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:31:29,844 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:31:29,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:31:29,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:31:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:31:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:31:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:31:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:31:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:31:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:31:29,847 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:31:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:31:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:31:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:31:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:31:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:31:29,848 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:31:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:31:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:31:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:31:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:31:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:31:29,849 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:31:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 11:31:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 11:31:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:31:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:31:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:31:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:31:29,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:31:30,879 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:31:30,879 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:31:30,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:31:30 BoogieIcfgContainer [2020-07-17 11:31:30,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:31:30,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:31:30,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:31:30,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:31:30,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:31:29" (1/3) ... [2020-07-17 11:31:30,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190ae8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:31:30, skipping insertion in model container [2020-07-17 11:31:30,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:31:29" (2/3) ... [2020-07-17 11:31:30,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190ae8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:31:30, skipping insertion in model container [2020-07-17 11:31:30,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:31:30" (3/3) ... [2020-07-17 11:31:30,892 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2020-07-17 11:31:30,902 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:31:30,910 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:31:30,924 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:31:30,946 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:31:30,946 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:31:30,946 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:31:30,947 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:31:30,947 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:31:30,947 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:31:30,947 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:31:30,947 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:31:30,970 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-07-17 11:31:30,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-17 11:31:30,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:30,980 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] [2020-07-17 11:31:30,981 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:30,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:30,987 INFO L82 PathProgramCache]: Analyzing trace with hash -403347124, now seen corresponding path program 1 times [2020-07-17 11:31:30,994 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:30,994 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678947306] [2020-07-17 11:31:30,995 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:31,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:31,618 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:31,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:31,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:31,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678947306] [2020-07-17 11:31:31,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:31,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:31:31,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348358530] [2020-07-17 11:31:31,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:31:31,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:31,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:31:31,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:31:31,722 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 3 states. [2020-07-17 11:31:32,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:32,707 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2020-07-17 11:31:32,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:31:32,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-17 11:31:32,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:32,724 INFO L225 Difference]: With dead ends: 240 [2020-07-17 11:31:32,724 INFO L226 Difference]: Without dead ends: 131 [2020-07-17 11:31:32,728 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 [2020-07-17 11:31:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-17 11:31:32,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2020-07-17 11:31:32,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-17 11:31:32,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-07-17 11:31:32,806 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2020-07-17 11:31:32,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:32,807 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-07-17 11:31:32,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:31:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-07-17 11:31:32,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-17 11:31:32,811 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:32,811 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] [2020-07-17 11:31:32,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:31:32,811 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:32,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1720191538, now seen corresponding path program 1 times [2020-07-17 11:31:32,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:32,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353600437] [2020-07-17 11:31:32,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:33,117 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:33,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:33,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:33,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353600437] [2020-07-17 11:31:33,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:33,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:31:33,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720161768] [2020-07-17 11:31:33,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:31:33,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:33,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:31:33,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:31:33,166 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 4 states. [2020-07-17 11:31:33,614 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:31:34,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:34,133 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2020-07-17 11:31:34,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:31:34,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-17 11:31:34,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:34,137 INFO L225 Difference]: With dead ends: 160 [2020-07-17 11:31:34,137 INFO L226 Difference]: Without dead ends: 115 [2020-07-17 11:31:34,139 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 [2020-07-17 11:31:34,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-07-17 11:31:34,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2020-07-17 11:31:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-17 11:31:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2020-07-17 11:31:34,176 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 53 [2020-07-17 11:31:34,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:34,176 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2020-07-17 11:31:34,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:31:34,176 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2020-07-17 11:31:34,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-17 11:31:34,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:34,179 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] [2020-07-17 11:31:34,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:31:34,179 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:34,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1933430427, now seen corresponding path program 1 times [2020-07-17 11:31:34,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:34,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433135759] [2020-07-17 11:31:34,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:34,499 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:34,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:34,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:34,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433135759] [2020-07-17 11:31:34,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:34,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:31:34,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230857238] [2020-07-17 11:31:34,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:31:34,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:34,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:31:34,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:31:34,598 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand 8 states. [2020-07-17 11:31:34,951 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:31:35,274 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:31:35,503 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:35,718 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:36,440 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:31:37,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:37,540 INFO L93 Difference]: Finished difference Result 326 states and 401 transitions. [2020-07-17 11:31:37,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 11:31:37,540 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-17 11:31:37,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:37,544 INFO L225 Difference]: With dead ends: 326 [2020-07-17 11:31:37,546 INFO L226 Difference]: Without dead ends: 259 [2020-07-17 11:31:37,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-17 11:31:37,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-17 11:31:37,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 190. [2020-07-17 11:31:37,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-17 11:31:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2020-07-17 11:31:37,643 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 58 [2020-07-17 11:31:37,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:37,644 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2020-07-17 11:31:37,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:31:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2020-07-17 11:31:37,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-17 11:31:37,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:37,654 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] [2020-07-17 11:31:37,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:31:37,654 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:37,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:37,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1944220283, now seen corresponding path program 1 times [2020-07-17 11:31:37,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:37,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174113452] [2020-07-17 11:31:37,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:37,991 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:38,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:38,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:38,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:38,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174113452] [2020-07-17 11:31:38,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:38,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 11:31:38,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302338857] [2020-07-17 11:31:38,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 11:31:38,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:38,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 11:31:38,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-17 11:31:38,108 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand 7 states. [2020-07-17 11:31:38,450 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:31:39,446 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:39,701 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:39,929 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:31:40,170 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:31:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:40,426 INFO L93 Difference]: Finished difference Result 537 states and 682 transitions. [2020-07-17 11:31:40,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 11:31:40,427 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-07-17 11:31:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:40,431 INFO L225 Difference]: With dead ends: 537 [2020-07-17 11:31:40,432 INFO L226 Difference]: Without dead ends: 371 [2020-07-17 11:31:40,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-17 11:31:40,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-07-17 11:31:40,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2020-07-17 11:31:40,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-07-17 11:31:40,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 425 transitions. [2020-07-17 11:31:40,507 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 425 transitions. Word has length 61 [2020-07-17 11:31:40,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:40,508 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 425 transitions. [2020-07-17 11:31:40,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 11:31:40,508 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 425 transitions. [2020-07-17 11:31:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-17 11:31:40,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:40,511 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] [2020-07-17 11:31:40,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:31:40,511 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:40,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:40,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1974146389, now seen corresponding path program 1 times [2020-07-17 11:31:40,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:40,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238411215] [2020-07-17 11:31:40,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,799 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:31:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:31:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:31:40,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238411215] [2020-07-17 11:31:40,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:31:40,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 11:31:40,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048275890] [2020-07-17 11:31:40,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 11:31:40,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:31:40,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 11:31:40,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:31:40,857 INFO L87 Difference]: Start difference. First operand 349 states and 425 transitions. Second operand 5 states. [2020-07-17 11:31:41,166 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:31:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:31:41,761 INFO L93 Difference]: Finished difference Result 642 states and 802 transitions. [2020-07-17 11:31:41,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 11:31:41,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-07-17 11:31:41,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:31:41,765 INFO L225 Difference]: With dead ends: 642 [2020-07-17 11:31:41,765 INFO L226 Difference]: Without dead ends: 317 [2020-07-17 11:31:41,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 11:31:41,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-17 11:31:41,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 303. [2020-07-17 11:31:41,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-07-17 11:31:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 354 transitions. [2020-07-17 11:31:41,835 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 354 transitions. Word has length 65 [2020-07-17 11:31:41,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:31:41,835 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 354 transitions. [2020-07-17 11:31:41,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 11:31:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 354 transitions. [2020-07-17 11:31:41,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-17 11:31:41,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:31:41,837 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] [2020-07-17 11:31:41,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:31:41,837 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:31:41,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:31:41,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1832330753, now seen corresponding path program 1 times [2020-07-17 11:31:41,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:31:41,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716211747] [2020-07-17 11:31:41,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:31:41,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:31:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:31:42,001 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:31:42,002 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:31:42,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 11:31:42,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:31:42 BoogieIcfgContainer [2020-07-17 11:31:42,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:31:42,129 INFO L168 Benchmark]: Toolchain (without parser) took 13095.17 ms. Allocated memory was 136.8 MB in the beginning and 452.5 MB in the end (delta: 315.6 MB). Free memory was 100.2 MB in the beginning and 208.4 MB in the end (delta: -108.2 MB). Peak memory consumption was 207.4 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:42,130 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 11:31:42,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.98 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 169.9 MB in the end (delta: -69.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:42,134 INFO L168 Benchmark]: Boogie Preprocessor took 89.64 ms. Allocated memory is still 201.3 MB. Free memory was 169.9 MB in the beginning and 165.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:42,134 INFO L168 Benchmark]: RCFGBuilder took 1112.96 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 165.7 MB in the beginning and 199.4 MB in the end (delta: -33.7 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:42,137 INFO L168 Benchmark]: TraceAbstraction took 11241.22 ms. Allocated memory was 231.2 MB in the beginning and 452.5 MB in the end (delta: 221.2 MB). Free memory was 198.0 MB in the beginning and 208.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 210.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:31:42,145 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 645.98 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 169.9 MB in the end (delta: -69.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.64 ms. Allocated memory is still 201.3 MB. Free memory was 169.9 MB in the beginning and 165.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1112.96 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 165.7 MB in the beginning and 199.4 MB in the end (delta: -33.7 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11241.22 ms. Allocated memory was 231.2 MB in the beginning and 452.5 MB in the end (delta: 221.2 MB). Free memory was 198.0 MB in the beginning and 208.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 210.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 633]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L530] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=141, \old(pumpRunning)=130, \old(systemActive)=129, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int retValue_acc ; [L607] 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] [L611] 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] [L612] 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] [L613] 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] [L521] int retValue_acc ; [L524] retValue_acc = 1 [L525] 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] [L613] 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] [L613] tmp = valid_product() [L615] 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] [L617] 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] [L618] 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] [L600] 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] [L808] int splverifierCounter ; [L809] int tmp ; [L810] int tmp___0 ; [L811] int tmp___1 ; [L812] int tmp___2 ; [L815] 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] [L817] 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] [L819] 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] [L825] tmp = __VERIFIER_nondet_int() [L827] 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] [L829] 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] [L64] COND TRUE waterLevel < 2 [L65] 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] [L829] 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] [L835] tmp___0 = __VERIFIER_nondet_int() [L837] 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] [L845] tmp___2 = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp___2)) [L853] tmp___1 = __VERIFIER_nondet_int() [L855] COND FALSE !(\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=0, tmp___2=0, waterLevel=2] [L864] 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=1, waterLevel=2] [L684] 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=1, waterLevel=2] [L691] COND TRUE \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=1, waterLevel=2] [L693] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L699] 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=1, waterLevel=2] [L640] int tmp ; [L641] int tmp___0 ; [L642] 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=1, waterLevel=2] [L646] 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=1, waterLevel=2] [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] 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=1, waterLevel=2] [L646] 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=1, waterLevel=2] [L646] tmp = isMethaneLevelCritical() [L648] 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=1, tmp=0, waterLevel=2] [L652] 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=1, waterLevel=2] [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] 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=1, waterLevel=2] [L652] 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=1, tmp=0, waterLevel=2] [L652] tmp___0 = getWaterLevel() [L654] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L656] 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=1, waterLevel=2] [L739] int retValue_acc ; [L742] retValue_acc = pumpRunning [L743] 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=1, waterLevel=2] [L656] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L656] tmp___1 = isPumpRunning() [L658] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L662] 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=1, waterLevel=2] [L633] __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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 439 SDtfs, 641 SDslu, 330 SDs, 0 SdLazy, 1334 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 160 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 80396 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...