/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.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 16:34:08,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 16:34:08,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 16:34:08,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 16:34:08,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 16:34:08,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 16:34:08,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 16:34:08,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 16:34:08,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 16:34:08,769 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 16:34:08,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 16:34:08,771 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 16:34:08,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 16:34:08,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 16:34:08,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 16:34:08,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 16:34:08,775 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 16:34:08,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 16:34:08,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 16:34:08,780 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 16:34:08,782 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 16:34:08,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 16:34:08,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 16:34:08,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 16:34:08,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 16:34:08,787 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 16:34:08,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 16:34:08,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 16:34:08,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 16:34:08,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 16:34:08,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 16:34:08,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 16:34:08,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 16:34:08,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 16:34:08,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 16:34:08,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 16:34:08,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 16:34:08,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 16:34:08,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 16:34:08,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 16:34:08,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 16:34:08,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 16:34:08,804 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 16:34:08,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 16:34:08,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 16:34:08,806 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 16:34:08,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 16:34:08,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 16:34:08,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 16:34:08,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 16:34:08,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 16:34:08,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 16:34:08,807 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 16:34:08,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 16:34:08,808 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 16:34:08,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 16:34:08,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 16:34:08,808 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 16:34:08,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 16:34:08,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 16:34:08,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 16:34:08,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 16:34:08,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 16:34:08,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 16:34:08,809 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 16:34:09,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 16:34:09,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 16:34:09,103 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 16:34:09,105 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 16:34:09,106 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 16:34:09,106 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-07-17 16:34:09,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/922dee7f9/7815a92f29924f7a8e2edd33daf0199c/FLAG966cd6937 [2020-07-17 16:34:09,644 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 16:34:09,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-07-17 16:34:09,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/922dee7f9/7815a92f29924f7a8e2edd33daf0199c/FLAG966cd6937 [2020-07-17 16:34:10,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/922dee7f9/7815a92f29924f7a8e2edd33daf0199c [2020-07-17 16:34:10,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 16:34:10,016 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 16:34:10,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 16:34:10,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 16:34:10,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 16:34:10,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:34:10" (1/1) ... [2020-07-17 16:34:10,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17da9069 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10, skipping insertion in model container [2020-07-17 16:34:10,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 04:34:10" (1/1) ... [2020-07-17 16:34:10,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 16:34:10,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 16:34:10,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:34:10,499 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 16:34:10,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 16:34:10,646 INFO L208 MainTranslator]: Completed translation [2020-07-17 16:34:10,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10 WrapperNode [2020-07-17 16:34:10,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 16:34:10,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 16:34:10,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 16:34:10,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 16:34:10,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10" (1/1) ... [2020-07-17 16:34:10,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10" (1/1) ... [2020-07-17 16:34:10,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10" (1/1) ... [2020-07-17 16:34:10,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10" (1/1) ... [2020-07-17 16:34:10,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10" (1/1) ... [2020-07-17 16:34:10,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10" (1/1) ... [2020-07-17 16:34:10,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10" (1/1) ... [2020-07-17 16:34:10,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 16:34:10,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 16:34:10,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 16:34:10,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 16:34:10,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10" (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 16:34:10,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 16:34:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 16:34:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 16:34:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 16:34:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 16:34:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 16:34:10,798 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 16:34:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 16:34:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 16:34:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 16:34:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 16:34:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 16:34:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 16:34:10,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 16:34:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 16:34:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 16:34:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 16:34:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 16:34:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 16:34:10,800 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 16:34:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 16:34:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 16:34:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-17 16:34:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 16:34:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 16:34:10,801 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 16:34:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 16:34:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 16:34:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 16:34:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 16:34:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 16:34:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 16:34:10,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 16:34:10,803 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 16:34:10,803 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 16:34:10,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 16:34:10,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 16:34:10,803 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 16:34:10,803 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 16:34:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 16:34:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 16:34:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 16:34:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 16:34:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 16:34:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 16:34:10,804 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 16:34:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 16:34:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 16:34:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 16:34:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 16:34:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 16:34:10,805 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 16:34:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 16:34:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 16:34:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 16:34:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 16:34:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 16:34:10,806 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 16:34:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 16:34:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 16:34:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 16:34:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 16:34:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 16:34:10,807 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 16:34:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 16:34:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 16:34:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 16:34:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 16:34:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 16:34:10,808 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-17 16:34:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 16:34:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 16:34:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 16:34:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 16:34:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 16:34:10,809 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 16:34:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 16:34:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 16:34:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 16:34:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 16:34:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 16:34:10,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 16:34:10,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 16:34:10,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 16:34:11,849 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 16:34:11,849 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 16:34:11,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:34:11 BoogieIcfgContainer [2020-07-17 16:34:11,855 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 16:34:11,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 16:34:11,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 16:34:11,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 16:34:11,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 04:34:10" (1/3) ... [2020-07-17 16:34:11,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223dece3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:34:11, skipping insertion in model container [2020-07-17 16:34:11,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 04:34:10" (2/3) ... [2020-07-17 16:34:11,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223dece3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 04:34:11, skipping insertion in model container [2020-07-17 16:34:11,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 04:34:11" (3/3) ... [2020-07-17 16:34:11,863 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-07-17 16:34:11,873 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 16:34:11,881 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 16:34:11,894 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 16:34:11,912 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 16:34:11,912 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 16:34:11,912 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 16:34:11,912 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 16:34:11,912 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 16:34:11,912 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 16:34:11,913 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 16:34:11,913 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 16:34:11,931 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states. [2020-07-17 16:34:11,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-17 16:34:11,950 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:34:11,952 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:11,952 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:34:11,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:34:11,959 INFO L82 PathProgramCache]: Analyzing trace with hash -96465303, now seen corresponding path program 1 times [2020-07-17 16:34:11,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:34:11,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376989797] [2020-07-17 16:34:11,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:34:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:12,587 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:34:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:12,801 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 16:34:12,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376989797] [2020-07-17 16:34:12,805 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:34:12,805 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 16:34:12,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435021024] [2020-07-17 16:34:12,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 16:34:12,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:34:12,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 16:34:12,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 16:34:12,837 INFO L87 Difference]: Start difference. First operand 262 states. Second operand 3 states. [2020-07-17 16:34:13,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:34:13,912 INFO L93 Difference]: Finished difference Result 374 states and 448 transitions. [2020-07-17 16:34:13,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 16:34:13,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-17 16:34:13,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:34:13,930 INFO L225 Difference]: With dead ends: 374 [2020-07-17 16:34:13,931 INFO L226 Difference]: Without dead ends: 243 [2020-07-17 16:34:13,937 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 16:34:13,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-07-17 16:34:14,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 205. [2020-07-17 16:34:14,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-07-17 16:34:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions. [2020-07-17 16:34:14,051 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 153 [2020-07-17 16:34:14,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:34:14,052 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions. [2020-07-17 16:34:14,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 16:34:14,052 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions. [2020-07-17 16:34:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-17 16:34:14,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:34:14,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:14,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 16:34:14,058 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:34:14,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:34:14,058 INFO L82 PathProgramCache]: Analyzing trace with hash -116924770, now seen corresponding path program 1 times [2020-07-17 16:34:14,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:34:14,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341444758] [2020-07-17 16:34:14,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:34:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:14,407 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:34:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:14,482 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 16:34:14,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341444758] [2020-07-17 16:34:14,483 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:34:14,483 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 16:34:14,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110952228] [2020-07-17 16:34:14,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 16:34:14,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:34:14,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 16:34:14,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 16:34:14,486 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand 4 states. [2020-07-17 16:34:15,093 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 16:34:15,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:34:15,635 INFO L93 Difference]: Finished difference Result 287 states and 319 transitions. [2020-07-17 16:34:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 16:34:15,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-17 16:34:15,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:34:15,639 INFO L225 Difference]: With dead ends: 287 [2020-07-17 16:34:15,640 INFO L226 Difference]: Without dead ends: 226 [2020-07-17 16:34:15,641 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 16:34:15,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-17 16:34:15,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 195. [2020-07-17 16:34:15,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-17 16:34:15,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 206 transitions. [2020-07-17 16:34:15,694 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 206 transitions. Word has length 154 [2020-07-17 16:34:15,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:34:15,695 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 206 transitions. [2020-07-17 16:34:15,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 16:34:15,695 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 206 transitions. [2020-07-17 16:34:15,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-17 16:34:15,698 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:34:15,698 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:15,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 16:34:15,698 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:34:15,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:34:15,699 INFO L82 PathProgramCache]: Analyzing trace with hash -529547900, now seen corresponding path program 1 times [2020-07-17 16:34:15,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:34:15,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042820513] [2020-07-17 16:34:15,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:34:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,062 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:34:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:16,182 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 16:34:16,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042820513] [2020-07-17 16:34:16,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:34:16,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-17 16:34:16,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393667372] [2020-07-17 16:34:16,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-17 16:34:16,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:34:16,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-17 16:34:16,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-07-17 16:34:16,185 INFO L87 Difference]: Start difference. First operand 195 states and 206 transitions. Second operand 10 states. [2020-07-17 16:34:16,757 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:34:17,200 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-17 16:34:17,537 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-17 16:34:17,801 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:34:18,022 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:34:18,262 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:34:19,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:34:19,273 INFO L93 Difference]: Finished difference Result 333 states and 381 transitions. [2020-07-17 16:34:19,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 16:34:19,273 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-07-17 16:34:19,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:34:19,277 INFO L225 Difference]: With dead ends: 333 [2020-07-17 16:34:19,277 INFO L226 Difference]: Without dead ends: 248 [2020-07-17 16:34:19,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-07-17 16:34:19,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-07-17 16:34:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 195. [2020-07-17 16:34:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-17 16:34:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 205 transitions. [2020-07-17 16:34:19,340 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 205 transitions. Word has length 167 [2020-07-17 16:34:19,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:34:19,341 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 205 transitions. [2020-07-17 16:34:19,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-17 16:34:19,341 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 205 transitions. [2020-07-17 16:34:19,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-17 16:34:19,344 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:34:19,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:19,344 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 16:34:19,345 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:34:19,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:34:19,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1664545682, now seen corresponding path program 1 times [2020-07-17 16:34:19,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:34:19,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830388127] [2020-07-17 16:34:19,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:34:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,683 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 16:34:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 16:34:19,868 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 16:34:19,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830388127] [2020-07-17 16:34:19,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 16:34:19,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-17 16:34:19,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002331534] [2020-07-17 16:34:19,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-17 16:34:19,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 16:34:19,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-17 16:34:19,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-17 16:34:19,871 INFO L87 Difference]: Start difference. First operand 195 states and 205 transitions. Second operand 9 states. [2020-07-17 16:34:20,312 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:34:21,473 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:34:21,733 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:34:21,982 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:34:22,281 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 16:34:22,508 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 16:34:22,755 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:34:22,981 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 16:34:23,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 16:34:23,372 INFO L93 Difference]: Finished difference Result 425 states and 496 transitions. [2020-07-17 16:34:23,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-17 16:34:23,372 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-07-17 16:34:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 16:34:23,377 INFO L225 Difference]: With dead ends: 425 [2020-07-17 16:34:23,377 INFO L226 Difference]: Without dead ends: 340 [2020-07-17 16:34:23,378 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-17 16:34:23,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2020-07-17 16:34:23,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 270. [2020-07-17 16:34:23,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-17 16:34:23,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 292 transitions. [2020-07-17 16:34:23,458 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 292 transitions. Word has length 170 [2020-07-17 16:34:23,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 16:34:23,458 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 292 transitions. [2020-07-17 16:34:23,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-17 16:34:23,459 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 292 transitions. [2020-07-17 16:34:23,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-17 16:34:23,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 16:34:23,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:34:23,462 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 16:34:23,462 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 16:34:23,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 16:34:23,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1378336310, now seen corresponding path program 1 times [2020-07-17 16:34:23,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 16:34:23,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476224162] [2020-07-17 16:34:23,463 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 16:34:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:34:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 16:34:23,763 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-17 16:34:23,763 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 16:34:23,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 16:34:24,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 04:34:24 BoogieIcfgContainer [2020-07-17 16:34:24,002 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 16:34:24,004 INFO L168 Benchmark]: Toolchain (without parser) took 13989.28 ms. Allocated memory was 135.8 MB in the beginning and 547.4 MB in the end (delta: 411.6 MB). Free memory was 99.6 MB in the beginning and 428.4 MB in the end (delta: -328.9 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-17 16:34:24,005 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 135.8 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-17 16:34:24,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.71 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 170.7 MB in the end (delta: -71.5 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2020-07-17 16:34:24,007 INFO L168 Benchmark]: Boogie Preprocessor took 76.20 ms. Allocated memory is still 200.3 MB. Free memory was 170.7 MB in the beginning and 167.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. [2020-07-17 16:34:24,008 INFO L168 Benchmark]: RCFGBuilder took 1131.63 ms. Allocated memory was 200.3 MB in the beginning and 228.6 MB in the end (delta: 28.3 MB). Free memory was 167.0 MB in the beginning and 181.9 MB in the end (delta: -14.9 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. [2020-07-17 16:34:24,008 INFO L168 Benchmark]: TraceAbstraction took 12145.78 ms. Allocated memory was 228.6 MB in the beginning and 547.4 MB in the end (delta: 318.8 MB). Free memory was 181.9 MB in the beginning and 428.4 MB in the end (delta: -246.5 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. [2020-07-17 16:34:24,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 135.8 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 629.71 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 99.1 MB in the beginning and 170.7 MB in the end (delta: -71.5 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.20 ms. Allocated memory is still 200.3 MB. Free memory was 170.7 MB in the beginning and 167.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1131.63 ms. Allocated memory was 200.3 MB in the beginning and 228.6 MB in the end (delta: 28.3 MB). Free memory was 167.0 MB in the beginning and 181.9 MB in the end (delta: -14.9 MB). Peak memory consumption was 91.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12145.78 ms. Allocated memory was 228.6 MB in the beginning and 547.4 MB in the end (delta: 318.8 MB). Free memory was 181.9 MB in the beginning and 428.4 MB in the end (delta: -246.5 MB). Peak memory consumption was 72.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=142, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=142, pumpRunning=132, systemActive=131, waterLevel=136] [L462] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=142, pumpRunning=0, systemActive=131, waterLevel=136] [L463] int systemActive = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=142, pumpRunning=0, systemActive=1, waterLevel=136] [L683] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=171, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=142, pumpRunning=0, systemActive=1, waterLevel=136] [L779] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=142, pumpRunning=0, systemActive=1, waterLevel=1] [L780] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L756] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L757] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L761] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L763] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L72] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L73] return (retValue_acc); VAL [\old(methaneLevelCritical)=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] [L763] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L763] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L765] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L767] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L768] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L750] CALL test() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L619] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L621] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L624] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L626] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L628] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L634] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L636] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L638] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L644] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L646] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=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] [L654] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L656] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=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___2=1, waterLevel=2] [L658] CALL startSystem() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L573] systemActive = 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] RET startSystem() VAL [\old(methaneLevelCritical)=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___2=1, waterLevel=2] [L671] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L470] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L477] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L479] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L485] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L580] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L581] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L821] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L822] return (retValue_acc); VAL [\old(methaneLevelCritical)=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] [L586] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L588] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L592] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L850] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L853] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L854] return (retValue_acc); VAL [\old(methaneLevelCritical)=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] [L592] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L592] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L594] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=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] [L596] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L529] return (retValue_acc); VAL [\old(methaneLevelCritical)=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] [L596] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=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] [L596] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=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, tmp___1=0, waterLevel=2] [L598] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=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] [L602] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L82] __VERIFIER_error() VAL [\old(methaneLevelCritical)=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 35 procedures, 582 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 756 SDtfs, 940 SDslu, 1236 SDs, 0 SdLazy, 1846 SolverSat, 279 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=270occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 192 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 819 NumberOfCodeBlocks, 819 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 640 ConstructedInterpolants, 0 QuantifiedInterpolants, 247110 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...