/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:06:02,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:06:02,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:06:02,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:06:02,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:06:02,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:06:02,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:06:02,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:06:02,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:06:02,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:06:02,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:06:02,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:06:02,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:06:02,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:06:02,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:06:02,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:06:02,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:06:02,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:06:02,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:06:02,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:06:02,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:06:02,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:06:02,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:06:02,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:06:02,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:06:02,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:06:02,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:06:02,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:06:02,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:06:02,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:06:02,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:06:02,722 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:06:02,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:06:02,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:06:02,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:06:02,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:06:02,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:06:02,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:06:02,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:06:02,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:06:02,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:06:02,727 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:06:02,736 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:06:02,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:06:02,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:06:02,737 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:06:02,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:06:02,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:06:02,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:06:02,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:06:02,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:06:02,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:06:02,739 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:06:02,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:06:02,739 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:06:02,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:06:02,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:06:02,740 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:06:02,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:06:02,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:06:02,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:06:02,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:06:02,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:06:02,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:06:02,741 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:06:03,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:06:03,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:06:03,025 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:06:03,026 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:06:03,027 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:06:03,028 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-08-22 18:06:03,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac87952a/b63c7950f493464e8d2cd0175b56f228/FLAGd8eff7428 [2020-08-22 18:06:03,631 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:06:03,632 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-08-22 18:06:03,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac87952a/b63c7950f493464e8d2cd0175b56f228/FLAGd8eff7428 [2020-08-22 18:06:03,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ac87952a/b63c7950f493464e8d2cd0175b56f228 [2020-08-22 18:06:03,994 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:06:03,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:06:03,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:06:03,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:06:04,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:06:04,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:06:03" (1/1) ... [2020-08-22 18:06:04,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@129d3bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04, skipping insertion in model container [2020-08-22 18:06:04,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:06:03" (1/1) ... [2020-08-22 18:06:04,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:06:04,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:06:04,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:06:04,469 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:06:04,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:06:04,587 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:06:04,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04 WrapperNode [2020-08-22 18:06:04,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:06:04,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:06:04,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:06:04,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:06:04,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04" (1/1) ... [2020-08-22 18:06:04,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04" (1/1) ... [2020-08-22 18:06:04,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04" (1/1) ... [2020-08-22 18:06:04,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04" (1/1) ... [2020-08-22 18:06:04,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04" (1/1) ... [2020-08-22 18:06:04,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04" (1/1) ... [2020-08-22 18:06:04,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04" (1/1) ... [2020-08-22 18:06:04,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:06:04,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:06:04,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:06:04,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:06:04,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04" (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 [2020-08-22 18:06:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:06:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:06:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:06:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:06:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:06:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:06:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:06:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:06:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:06:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:06:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:06:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:06:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:06:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:06:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:06:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:06:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:06:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:06:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:06:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:06:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:06:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:06:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:06:04,757 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:06:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:06:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 18:06:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 18:06:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:06:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:06:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 18:06:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 18:06:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:06:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:06:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:06:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:06:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:06:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:06:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 18:06:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 18:06:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 18:06:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 18:06:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:06:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:06:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:06:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:06:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:06:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:06:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:06:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:06:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:06:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:06:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:06:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:06:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:06:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:06:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:06:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:06:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:06:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:06:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:06:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:06:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:06:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:06:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:06:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:06:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:06:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:06:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:06:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:06:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:06:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:06:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:06:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:06:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:06:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:06:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:06:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:06:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:06:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:06:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:06:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:06:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:06:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:06:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:06:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 18:06:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 18:06:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:06:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:06:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 18:06:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 18:06:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:06:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:06:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 18:06:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 18:06:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 18:06:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 18:06:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:06:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:06:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:06:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:06:05,985 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:06:05,986 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:06:05,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:06:05 BoogieIcfgContainer [2020-08-22 18:06:05,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:06:05,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:06:05,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:06:05,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:06:05,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:06:03" (1/3) ... [2020-08-22 18:06:05,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aedab8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:06:05, skipping insertion in model container [2020-08-22 18:06:05,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:04" (2/3) ... [2020-08-22 18:06:05,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aedab8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:06:05, skipping insertion in model container [2020-08-22 18:06:05,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:06:05" (3/3) ... [2020-08-22 18:06:06,001 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-08-22 18:06:06,011 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:06:06,019 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:06:06,032 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:06:06,054 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:06:06,054 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:06:06,054 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:06:06,054 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:06:06,054 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:06:06,055 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:06:06,055 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:06:06,055 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:06:06,077 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states. [2020-08-22 18:06:06,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:06:06,100 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:06,101 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] [2020-08-22 18:06:06,102 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:06,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:06,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1296502413, now seen corresponding path program 1 times [2020-08-22 18:06:06,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:06,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69090129] [2020-08-22 18:06:06,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:06,180 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,872 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:06,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:07,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:07,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:07,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:07,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:07,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:07,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:07,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:07,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:06:07,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:07,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:06:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:07,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:06:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:07,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69090129] [2020-08-22 18:06:07,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:07,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:06:07,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442130284] [2020-08-22 18:06:07,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:06:07,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:07,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:06:07,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:06:07,121 INFO L87 Difference]: Start difference. First operand 353 states. Second operand 3 states. [2020-08-22 18:06:08,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:08,604 INFO L93 Difference]: Finished difference Result 576 states and 686 transitions. [2020-08-22 18:06:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:06:08,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:06:08,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:08,625 INFO L225 Difference]: With dead ends: 576 [2020-08-22 18:06:08,625 INFO L226 Difference]: Without dead ends: 348 [2020-08-22 18:06:08,631 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:06:08,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-08-22 18:06:08,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 302. [2020-08-22 18:06:08,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-08-22 18:06:08,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 332 transitions. [2020-08-22 18:06:08,811 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 332 transitions. Word has length 153 [2020-08-22 18:06:08,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:08,815 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 332 transitions. [2020-08-22 18:06:08,815 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:06:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 332 transitions. [2020-08-22 18:06:08,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:06:08,824 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:08,825 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] [2020-08-22 18:06:08,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:06:08,826 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:08,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:08,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1707767493, now seen corresponding path program 1 times [2020-08-22 18:06:08,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:08,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1951453952] [2020-08-22 18:06:08,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:08,833 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,185 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:09,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:06:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:06:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:06:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:09,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1951453952] [2020-08-22 18:06:09,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:09,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:06:09,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463207287] [2020-08-22 18:06:09,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:06:09,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:09,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:06:09,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:06:09,276 INFO L87 Difference]: Start difference. First operand 302 states and 332 transitions. Second operand 4 states. [2020-08-22 18:06:09,885 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:06:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:11,052 INFO L93 Difference]: Finished difference Result 483 states and 549 transitions. [2020-08-22 18:06:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:06:11,053 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:06:11,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:11,059 INFO L225 Difference]: With dead ends: 483 [2020-08-22 18:06:11,059 INFO L226 Difference]: Without dead ends: 331 [2020-08-22 18:06:11,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:06:11,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-08-22 18:06:11,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 292. [2020-08-22 18:06:11,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-08-22 18:06:11,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 319 transitions. [2020-08-22 18:06:11,138 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 319 transitions. Word has length 154 [2020-08-22 18:06:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:11,139 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 319 transitions. [2020-08-22 18:06:11,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:06:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 319 transitions. [2020-08-22 18:06:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 18:06:11,142 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:11,142 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] [2020-08-22 18:06:11,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:06:11,143 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:11,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:11,143 INFO L82 PathProgramCache]: Analyzing trace with hash 359507624, now seen corresponding path program 1 times [2020-08-22 18:06:11,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:11,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1385252379] [2020-08-22 18:06:11,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:11,146 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,533 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:11,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:11,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:11,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:11,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:11,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 18:06:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 18:06:11,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 18:06:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 18:06:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:11,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1385252379] [2020-08-22 18:06:11,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:11,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:06:11,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599877004] [2020-08-22 18:06:11,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:06:11,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:11,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:06:11,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:06:11,713 INFO L87 Difference]: Start difference. First operand 292 states and 319 transitions. Second operand 10 states. [2020-08-22 18:06:12,149 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:12,457 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:06:12,738 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:06:12,973 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:13,208 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:13,433 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:14,360 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:06:17,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:17,287 INFO L93 Difference]: Finished difference Result 826 states and 965 transitions. [2020-08-22 18:06:17,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 18:06:17,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 18:06:17,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:17,296 INFO L225 Difference]: With dead ends: 826 [2020-08-22 18:06:17,296 INFO L226 Difference]: Without dead ends: 644 [2020-08-22 18:06:17,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:06:17,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2020-08-22 18:06:17,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 545. [2020-08-22 18:06:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-08-22 18:06:17,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 614 transitions. [2020-08-22 18:06:17,479 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 614 transitions. Word has length 167 [2020-08-22 18:06:17,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:17,479 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 614 transitions. [2020-08-22 18:06:17,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:06:17,480 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 614 transitions. [2020-08-22 18:06:17,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 18:06:17,483 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:17,484 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] [2020-08-22 18:06:17,484 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:06:17,484 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:17,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:17,484 INFO L82 PathProgramCache]: Analyzing trace with hash -585794347, now seen corresponding path program 1 times [2020-08-22 18:06:17,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:17,485 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [900112263] [2020-08-22 18:06:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:17,488 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,773 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:17,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:17,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 18:06:17,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 18:06:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 18:06:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 18:06:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:17,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [900112263] [2020-08-22 18:06:17,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:17,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:06:17,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015806813] [2020-08-22 18:06:17,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:06:17,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:17,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:06:17,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:06:17,912 INFO L87 Difference]: Start difference. First operand 545 states and 614 transitions. Second operand 9 states. [2020-08-22 18:06:18,437 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:20,333 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:20,620 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:20,947 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:21,246 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:21,491 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:21,772 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:21,998 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:23,105 INFO L93 Difference]: Finished difference Result 1505 states and 1817 transitions. [2020-08-22 18:06:23,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:06:23,106 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 18:06:23,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:23,118 INFO L225 Difference]: With dead ends: 1505 [2020-08-22 18:06:23,118 INFO L226 Difference]: Without dead ends: 1070 [2020-08-22 18:06:23,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:06:23,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2020-08-22 18:06:23,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 963. [2020-08-22 18:06:23,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 963 states. [2020-08-22 18:06:23,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1111 transitions. [2020-08-22 18:06:23,486 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1111 transitions. Word has length 172 [2020-08-22 18:06:23,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:23,487 INFO L479 AbstractCegarLoop]: Abstraction has 963 states and 1111 transitions. [2020-08-22 18:06:23,487 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:06:23,487 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1111 transitions. [2020-08-22 18:06:23,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 18:06:23,492 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:23,492 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, 1, 1] [2020-08-22 18:06:23,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:06:23,492 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:23,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:23,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1663706585, now seen corresponding path program 1 times [2020-08-22 18:06:23,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:23,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224033722] [2020-08-22 18:06:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:23,496 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:23,564 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:23,617 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:23,775 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:06:23,775 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:06:23,776 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:06:23,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:06:23 BoogieIcfgContainer [2020-08-22 18:06:23,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:06:23,803 INFO L168 Benchmark]: Toolchain (without parser) took 19807.50 ms. Allocated memory was 138.4 MB in the beginning and 655.9 MB in the end (delta: 517.5 MB). Free memory was 101.5 MB in the beginning and 390.8 MB in the end (delta: -289.3 MB). Peak memory consumption was 228.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:23,804 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:06:23,805 INFO L168 Benchmark]: CACSL2BoogieTranslator took 590.77 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 167.5 MB in the end (delta: -66.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:23,806 INFO L168 Benchmark]: Boogie Preprocessor took 92.91 ms. Allocated memory is still 201.9 MB. Free memory was 167.5 MB in the beginning and 163.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:23,806 INFO L168 Benchmark]: RCFGBuilder took 1311.16 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 163.3 MB in the beginning and 168.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:23,807 INFO L168 Benchmark]: TraceAbstraction took 17807.44 ms. Allocated memory was 233.8 MB in the beginning and 655.9 MB in the end (delta: 422.1 MB). Free memory was 168.0 MB in the beginning and 390.8 MB in the end (delta: -222.8 MB). Peak memory consumption was 199.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:23,811 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 138.4 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 590.77 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 167.5 MB in the end (delta: -66.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.91 ms. Allocated memory is still 201.9 MB. Free memory was 167.5 MB in the beginning and 163.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1311.16 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 163.3 MB in the beginning and 168.0 MB in the end (delta: -4.7 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17807.44 ms. Allocated memory was 233.8 MB in the beginning and 655.9 MB in the end (delta: 422.1 MB). Free memory was 168.0 MB in the beginning and 390.8 MB in the end (delta: -222.8 MB). Peak memory consumption was 199.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L605] COND TRUE waterLevel < 2 [L606] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) [L990] CALL stopSystem() [L920] COND FALSE !(\read(pumpRunning)) [L927] systemActive = 0 [L990] RET stopSystem() [L997] CALL timeShift() [L701] COND FALSE !(\read(pumpRunning)) [L708] COND FALSE !(\read(systemActive)) [L716] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L1013] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 665 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1162 SDtfs, 1889 SDslu, 1483 SDs, 0 SdLazy, 3782 SolverSat, 674 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=963occurred 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: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 291 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...