/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 20:59:44,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 20:59:44,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 20:59:44,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 20:59:44,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 20:59:44,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 20:59:44,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 20:59:44,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 20:59:44,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 20:59:44,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 20:59:44,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 20:59:44,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 20:59:44,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 20:59:44,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 20:59:44,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 20:59:44,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 20:59:44,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 20:59:44,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 20:59:44,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 20:59:44,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 20:59:44,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 20:59:44,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 20:59:44,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 20:59:44,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 20:59:44,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 20:59:44,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 20:59:44,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 20:59:44,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 20:59:44,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 20:59:44,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 20:59:44,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 20:59:44,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 20:59:44,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 20:59:44,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 20:59:44,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 20:59:44,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 20:59:44,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 20:59:44,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 20:59:44,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 20:59:44,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 20:59:44,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 20:59:44,764 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 [2020-07-19 20:59:44,802 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 20:59:44,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 20:59:44,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 20:59:44,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 20:59:44,807 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 20:59:44,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 20:59:44,808 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 20:59:44,808 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 20:59:44,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 20:59:44,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 20:59:44,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 20:59:44,809 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 20:59:44,809 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 20:59:44,809 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 20:59:44,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 20:59:44,809 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 20:59:44,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 20:59:44,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 20:59:44,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 20:59:44,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 20:59:44,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 20:59:44,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 20:59:44,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 20:59:44,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 20:59:44,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 20:59:44,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 20:59:44,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 20:59:44,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 20:59:44,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 20:59:44,812 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 20:59:45,129 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 20:59:45,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 20:59:45,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 20:59:45,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 20:59:45,154 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 20:59:45,155 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-07-19 20:59:45,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/391e25dab/d708c61284d54b74a5d82e2ee843bec4/FLAGbd603a5cd [2020-07-19 20:59:45,721 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 20:59:45,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-07-19 20:59:45,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/391e25dab/d708c61284d54b74a5d82e2ee843bec4/FLAGbd603a5cd [2020-07-19 20:59:46,042 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/391e25dab/d708c61284d54b74a5d82e2ee843bec4 [2020-07-19 20:59:46,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 20:59:46,053 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 20:59:46,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 20:59:46,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 20:59:46,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 20:59:46,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:59:46" (1/1) ... [2020-07-19 20:59:46,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d4188c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46, skipping insertion in model container [2020-07-19 20:59:46,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:59:46" (1/1) ... [2020-07-19 20:59:46,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 20:59:46,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 20:59:46,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:59:46,592 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 20:59:46,727 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:59:46,762 INFO L208 MainTranslator]: Completed translation [2020-07-19 20:59:46,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46 WrapperNode [2020-07-19 20:59:46,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 20:59:46,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 20:59:46,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 20:59:46,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 20:59:46,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46" (1/1) ... [2020-07-19 20:59:46,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46" (1/1) ... [2020-07-19 20:59:46,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46" (1/1) ... [2020-07-19 20:59:46,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46" (1/1) ... [2020-07-19 20:59:46,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46" (1/1) ... [2020-07-19 20:59:46,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46" (1/1) ... [2020-07-19 20:59:46,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46" (1/1) ... [2020-07-19 20:59:46,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 20:59:46,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 20:59:46,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 20:59:46,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 20:59:46,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46" (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 [2020-07-19 20:59:46,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 20:59:46,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 20:59:46,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 20:59:46,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 20:59:46,916 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 20:59:46,916 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 20:59:46,916 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 20:59:46,916 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 20:59:46,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 20:59:46,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 20:59:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 20:59:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 20:59:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 20:59:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 20:59:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 20:59:46,917 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 20:59:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 20:59:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-19 20:59:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 20:59:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-19 20:59:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 20:59:46,918 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 20:59:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 20:59:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 20:59:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 20:59:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 20:59:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 20:59:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 20:59:46,920 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 20:59:46,920 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 20:59:46,920 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 20:59:46,920 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 20:59:46,920 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 20:59:46,920 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 20:59:46,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 20:59:46,921 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 20:59:46,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 20:59:46,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-19 20:59:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 20:59:46,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 20:59:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 20:59:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 20:59:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 20:59:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 20:59:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 20:59:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 20:59:46,922 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 20:59:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 20:59:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 20:59:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 20:59:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 20:59:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 20:59:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 20:59:46,923 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 20:59:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 20:59:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 20:59:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 20:59:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 20:59:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 20:59:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 20:59:46,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 20:59:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 20:59:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 20:59:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 20:59:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 20:59:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 20:59:46,925 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 20:59:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 20:59:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 20:59:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 20:59:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 20:59:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 20:59:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 20:59:46,926 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 20:59:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 20:59:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 20:59:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 20:59:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 20:59:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 20:59:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 20:59:46,927 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-19 20:59:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 20:59:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-19 20:59:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 20:59:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-19 20:59:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 20:59:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 20:59:46,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 20:59:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 20:59:46,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 20:59:48,041 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 20:59:48,042 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 20:59:48,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:59:48 BoogieIcfgContainer [2020-07-19 20:59:48,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 20:59:48,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 20:59:48,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 20:59:48,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 20:59:48,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:59:46" (1/3) ... [2020-07-19 20:59:48,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b8dc46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:59:48, skipping insertion in model container [2020-07-19 20:59:48,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:46" (2/3) ... [2020-07-19 20:59:48,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b8dc46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:59:48, skipping insertion in model container [2020-07-19 20:59:48,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:59:48" (3/3) ... [2020-07-19 20:59:48,056 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-07-19 20:59:48,064 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 20:59:48,072 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 20:59:48,084 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 20:59:48,105 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 20:59:48,105 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 20:59:48,105 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 20:59:48,105 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 20:59:48,106 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 20:59:48,106 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 20:59:48,106 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 20:59:48,106 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 20:59:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-07-19 20:59:48,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 20:59:48,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:48,141 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] [2020-07-19 20:59:48,142 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:48,148 INFO L82 PathProgramCache]: Analyzing trace with hash -490913979, now seen corresponding path program 1 times [2020-07-19 20:59:48,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:48,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885204177] [2020-07-19 20:59:48,158 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@647b008b [2020-07-19 20:59:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:48,807 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:59:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:59:48,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885204177] [2020-07-19 20:59:48,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:59:48,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 20:59:48,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652562326] [2020-07-19 20:59:48,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 20:59:48,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:59:48,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 20:59:48,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 20:59:48,926 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-07-19 20:59:50,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:59:50,069 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-07-19 20:59:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 20:59:50,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-19 20:59:50,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:59:50,087 INFO L225 Difference]: With dead ends: 272 [2020-07-19 20:59:50,087 INFO L226 Difference]: Without dead ends: 148 [2020-07-19 20:59:50,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 20:59:50,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-07-19 20:59:50,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-07-19 20:59:50,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-07-19 20:59:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-07-19 20:59:50,185 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-07-19 20:59:50,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:59:50,186 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-07-19 20:59:50,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 20:59:50,186 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-07-19 20:59:50,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 20:59:50,189 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:50,190 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] [2020-07-19 20:59:50,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 20:59:50,190 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:50,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:50,191 INFO L82 PathProgramCache]: Analyzing trace with hash 30555541, now seen corresponding path program 1 times [2020-07-19 20:59:50,191 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:50,191 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754705253] [2020-07-19 20:59:50,192 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@647b008b [2020-07-19 20:59:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:50,607 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:59:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:59:50,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754705253] [2020-07-19 20:59:50,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:59:50,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 20:59:50,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941206917] [2020-07-19 20:59:50,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 20:59:50,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:59:50,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 20:59:50,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:59:50,654 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-07-19 20:59:51,101 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:59:51,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:59:51,819 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-07-19 20:59:51,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 20:59:51,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-19 20:59:51,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:59:51,824 INFO L225 Difference]: With dead ends: 195 [2020-07-19 20:59:51,824 INFO L226 Difference]: Without dead ends: 132 [2020-07-19 20:59:51,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 20:59:51,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-19 20:59:51,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-07-19 20:59:51,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-07-19 20:59:51,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-07-19 20:59:51,870 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-07-19 20:59:51,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:59:51,870 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-07-19 20:59:51,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 20:59:51,872 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-07-19 20:59:51,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-19 20:59:51,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:51,882 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] [2020-07-19 20:59:51,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 20:59:51,883 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:51,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:51,885 INFO L82 PathProgramCache]: Analyzing trace with hash -150591273, now seen corresponding path program 1 times [2020-07-19 20:59:51,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:51,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65274118] [2020-07-19 20:59:51,886 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@647b008b [2020-07-19 20:59:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:52,246 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:59:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:59:52,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65274118] [2020-07-19 20:59:52,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:59:52,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:59:52,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920277691] [2020-07-19 20:59:52,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:59:52,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:59:52,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:59:52,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:59:52,327 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 8 states. [2020-07-19 20:59:52,709 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:59:53,021 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:53,278 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:53,502 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:54,267 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:59:55,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:59:55,802 INFO L93 Difference]: Finished difference Result 375 states and 467 transitions. [2020-07-19 20:59:55,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 20:59:55,803 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-19 20:59:55,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:59:55,807 INFO L225 Difference]: With dead ends: 375 [2020-07-19 20:59:55,807 INFO L226 Difference]: Without dead ends: 293 [2020-07-19 20:59:55,809 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 [2020-07-19 20:59:55,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-07-19 20:59:55,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 232. [2020-07-19 20:59:55,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-07-19 20:59:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 281 transitions. [2020-07-19 20:59:55,877 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 281 transitions. Word has length 58 [2020-07-19 20:59:55,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:59:55,878 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 281 transitions. [2020-07-19 20:59:55,878 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:59:55,878 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 281 transitions. [2020-07-19 20:59:55,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-19 20:59:55,881 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:55,881 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] [2020-07-19 20:59:55,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 20:59:55,881 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:55,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:55,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1860592830, now seen corresponding path program 1 times [2020-07-19 20:59:55,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:55,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133545919] [2020-07-19 20:59:55,883 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@647b008b [2020-07-19 20:59:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,186 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:59:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:56,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:59:56,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133545919] [2020-07-19 20:59:56,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:59:56,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:59:56,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825440229] [2020-07-19 20:59:56,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:59:56,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:59:56,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:59:56,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:59:56,297 INFO L87 Difference]: Start difference. First operand 232 states and 281 transitions. Second operand 8 states. [2020-07-19 20:59:56,694 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:59:57,946 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:58,238 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:58,497 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:58,752 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:59:59,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:59:59,337 INFO L93 Difference]: Finished difference Result 711 states and 941 transitions. [2020-07-19 20:59:59,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-19 20:59:59,339 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-19 20:59:59,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:59:59,348 INFO L225 Difference]: With dead ends: 711 [2020-07-19 20:59:59,348 INFO L226 Difference]: Without dead ends: 503 [2020-07-19 20:59:59,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-19 20:59:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-07-19 20:59:59,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 437. [2020-07-19 20:59:59,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-19 20:59:59,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 543 transitions. [2020-07-19 20:59:59,478 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 543 transitions. Word has length 63 [2020-07-19 20:59:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:59:59,478 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 543 transitions. [2020-07-19 20:59:59,478 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:59:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 543 transitions. [2020-07-19 20:59:59,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-19 20:59:59,481 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:59,482 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] [2020-07-19 20:59:59,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 20:59:59,482 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:59,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:59,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1880541084, now seen corresponding path program 1 times [2020-07-19 20:59:59,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:59,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845480493] [2020-07-19 20:59:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@647b008b [2020-07-19 20:59:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:59:59,543 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:59:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:59:59,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:59:59,670 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 20:59:59,670 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 20:59:59,670 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 20:59:59,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:59:59 BoogieIcfgContainer [2020-07-19 20:59:59,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 20:59:59,843 INFO L168 Benchmark]: Toolchain (without parser) took 13790.97 ms. Allocated memory was 138.4 MB in the beginning and 425.7 MB in the end (delta: 287.3 MB). Free memory was 102.4 MB in the beginning and 136.2 MB in the end (delta: -33.8 MB). Peak memory consumption was 253.5 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:59,844 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 20:59:59,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.48 ms. Allocated memory was 138.4 MB in the beginning and 206.6 MB in the end (delta: 68.2 MB). Free memory was 102.0 MB in the beginning and 176.0 MB in the end (delta: -74.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:59,847 INFO L168 Benchmark]: Boogie Preprocessor took 89.55 ms. Allocated memory is still 206.6 MB. Free memory was 176.0 MB in the beginning and 171.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:59,848 INFO L168 Benchmark]: RCFGBuilder took 1194.15 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 171.8 MB in the beginning and 200.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:59,850 INFO L168 Benchmark]: TraceAbstraction took 11789.26 ms. Allocated memory was 237.0 MB in the beginning and 425.7 MB in the end (delta: 188.7 MB). Free memory was 200.7 MB in the beginning and 136.2 MB in the end (delta: 64.5 MB). Peak memory consumption was 253.2 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:59,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.48 ms. Allocated memory was 138.4 MB in the beginning and 206.6 MB in the end (delta: 68.2 MB). Free memory was 102.0 MB in the beginning and 176.0 MB in the end (delta: -74.1 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.55 ms. Allocated memory is still 206.6 MB. Free memory was 176.0 MB in the beginning and 171.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1194.15 ms. Allocated memory was 206.6 MB in the beginning and 237.0 MB in the end (delta: 30.4 MB). Free memory was 171.8 MB in the beginning and 200.7 MB in the end (delta: -28.9 MB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11789.26 ms. Allocated memory was 237.0 MB in the beginning and 425.7 MB in the end (delta: 188.7 MB). Free memory was 200.7 MB in the beginning and 136.2 MB in the end (delta: 64.5 MB). Peak memory consumption was 253.2 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: [L49] int cleanupTimeShifts = 4; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=170, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=140, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] int retValue_acc ; [L131] 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] [L135] 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] [L136] 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] [L137] 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] [L796] int retValue_acc ; [L799] retValue_acc = 1 [L800] 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] [L137] 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] [L137] tmp = valid_product() [L139] 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] [L141] 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] [L142] 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] [L121] 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] [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] 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] [L531] 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] [L533] 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] [L539] tmp = __VERIFIER_nondet_int() [L541] 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] [L543] 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] [L824] COND TRUE waterLevel < 2 [L825] 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] [L543] 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] [L549] tmp___0 = __VERIFIER_nondet_int() [L551] 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] [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___2)) [L567] tmp___1 = __VERIFIER_nondet_int() [L569] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L571] 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] [L750] 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] [L757] 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] [L571] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L578] 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] [L604] 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] [L611] 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] [L619] 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] [L887] int tmp ; [L888] int tmp___0 ; [L889] 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] [L893] 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] [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] 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] [L893] 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] [L893] tmp = isMethaneLevelCritical() [L895] 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] [L899] 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] [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] 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] [L899] 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] [L899] tmp___0 = getWaterLevel() [L901] 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] [L903] 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] [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] 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] [L903] 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] [L903] tmp___1 = isPumpRunning() [L905] 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] [L909] 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 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 443 SDtfs, 645 SDslu, 347 SDs, 0 SdLazy, 1677 SolverSat, 433 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=437occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 186 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 62058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...