/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:46:42,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:46:42,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:46:42,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:46:42,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:46:42,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:46:42,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:46:42,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:46:42,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:46:42,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:46:42,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:46:42,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:46:42,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:46:42,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:46:42,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:46:42,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:46:42,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:46:42,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:46:42,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:46:42,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:46:42,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:46:42,680 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:46:42,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:46:42,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:46:42,684 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:46:42,684 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:46:42,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:46:42,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:46:42,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:46:42,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:46:42,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:46:42,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:46:42,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:46:42,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:46:42,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:46:42,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:46:42,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:46:42,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:46:42,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:46:42,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:46:42,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:46:42,697 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-07 10:46:42,711 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:46:42,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:46:42,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:46:42,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:46:42,712 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:46:42,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:46:42,713 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:46:42,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:46:42,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:46:42,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:46:42,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:46:42,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:46:42,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:46:42,714 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:46:42,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:46:42,714 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:46:42,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:46:42,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:46:42,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:46:42,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:46:42,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:46:42,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:46:42,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:46:42,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:46:42,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:46:42,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:46:42,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:46:42,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:46:42,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:46:42,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:46:43,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:46:43,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:46:43,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:46:43,039 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:46:43,040 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:46:43,041 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2020-07-07 10:46:43,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80962fc5c/4f74f2d707b1461593cc6615ce0a64ca/FLAGa68f4c09b [2020-07-07 10:46:43,701 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:46:43,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product40.cil.c [2020-07-07 10:46:43,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80962fc5c/4f74f2d707b1461593cc6615ce0a64ca/FLAGa68f4c09b [2020-07-07 10:46:43,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80962fc5c/4f74f2d707b1461593cc6615ce0a64ca [2020-07-07 10:46:43,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:46:43,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:46:43,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:46:43,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:46:43,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:46:43,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:46:43" (1/1) ... [2020-07-07 10:46:43,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14706b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:43, skipping insertion in model container [2020-07-07 10:46:43,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:46:43" (1/1) ... [2020-07-07 10:46:43,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:46:44,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:46:44,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:46:44,512 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:46:44,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:46:44,626 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:46:44,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44 WrapperNode [2020-07-07 10:46:44,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:46:44,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:46:44,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:46:44,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:46:44,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44" (1/1) ... [2020-07-07 10:46:44,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44" (1/1) ... [2020-07-07 10:46:44,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44" (1/1) ... [2020-07-07 10:46:44,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44" (1/1) ... [2020-07-07 10:46:44,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44" (1/1) ... [2020-07-07 10:46:44,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44" (1/1) ... [2020-07-07 10:46:44,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44" (1/1) ... [2020-07-07 10:46:44,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:46:44,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:46:44,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:46:44,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:46:44,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:46:44,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:46:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:46:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:46:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:46:44,782 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:46:44,783 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:46:44,783 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:46:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:46:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:46:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:46:44,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:46:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:46:44,785 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:46:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 10:46:44,786 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 10:46:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-07 10:46:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:46:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:46:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:46:44,787 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:46:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:46:44,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:46:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:46:44,789 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:46:44,790 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:46:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:46:44,791 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:46:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:46:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 10:46:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:46:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:46:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:46:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:46:44,792 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:46:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:46:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:46:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:46:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:46:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:46:44,793 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:46:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:46:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:46:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:46:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:46:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:46:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-07 10:46:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 10:46:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:46:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:46:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:46:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:46:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:46:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:46:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 10:46:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:46:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:46:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:46:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:46:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:46:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:46:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:46:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 10:46:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:46:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:46:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:46:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:46:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:46:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:46:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:46:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:46:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:46:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:46:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:46:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:46:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:46:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:46:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:46:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:46:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:46:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:46:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:46:44,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:46:44,801 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:46:44,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:46:44,802 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:46:44,802 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:46:44,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:46:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:46:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:46:44,803 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:46:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:46:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:46:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:46:44,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:46:45,806 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:46:45,806 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:46:45,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:46:45 BoogieIcfgContainer [2020-07-07 10:46:45,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:46:45,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:46:45,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:46:45,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:46:45,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:46:43" (1/3) ... [2020-07-07 10:46:45,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557ad8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:46:45, skipping insertion in model container [2020-07-07 10:46:45,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:46:44" (2/3) ... [2020-07-07 10:46:45,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557ad8d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:46:45, skipping insertion in model container [2020-07-07 10:46:45,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:46:45" (3/3) ... [2020-07-07 10:46:45,825 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product40.cil.c [2020-07-07 10:46:45,835 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:46:45,844 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:46:45,858 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:46:45,879 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:46:45,879 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:46:45,880 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:46:45,880 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:46:45,880 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:46:45,880 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:46:45,880 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:46:45,881 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:46:45,903 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-07-07 10:46:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 10:46:45,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:45,914 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] [2020-07-07 10:46:45,914 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:45,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:45,920 INFO L82 PathProgramCache]: Analyzing trace with hash -656044244, now seen corresponding path program 1 times [2020-07-07 10:46:45,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:45,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112553429] [2020-07-07 10:46:45,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:46,644 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:46,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:46,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112553429] [2020-07-07 10:46:46,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:46,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:46:46,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051287451] [2020-07-07 10:46:46,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:46:46,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:46,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:46:46,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:46:46,765 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 3 states. [2020-07-07 10:46:47,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:47,965 INFO L93 Difference]: Finished difference Result 316 states and 411 transitions. [2020-07-07 10:46:47,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:46:47,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 10:46:47,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:47,982 INFO L225 Difference]: With dead ends: 316 [2020-07-07 10:46:47,982 INFO L226 Difference]: Without dead ends: 171 [2020-07-07 10:46:47,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:46:48,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-07-07 10:46:48,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 136. [2020-07-07 10:46:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-07 10:46:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2020-07-07 10:46:48,105 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 46 [2020-07-07 10:46:48,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:48,106 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2020-07-07 10:46:48,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:46:48,106 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2020-07-07 10:46:48,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 10:46:48,119 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:48,119 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] [2020-07-07 10:46:48,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:46:48,120 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:48,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:48,121 INFO L82 PathProgramCache]: Analyzing trace with hash 679222766, now seen corresponding path program 1 times [2020-07-07 10:46:48,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:48,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11195605] [2020-07-07 10:46:48,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,553 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:48,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:48,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11195605] [2020-07-07 10:46:48,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:48,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:46:48,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269201151] [2020-07-07 10:46:48,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:46:48,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:48,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:46:48,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:46:48,598 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand 4 states. [2020-07-07 10:46:49,064 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:46:49,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:49,928 INFO L93 Difference]: Finished difference Result 239 states and 290 transitions. [2020-07-07 10:46:49,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:46:49,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-07 10:46:49,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:49,931 INFO L225 Difference]: With dead ends: 239 [2020-07-07 10:46:49,931 INFO L226 Difference]: Without dead ends: 155 [2020-07-07 10:46:49,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:46:49,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-07-07 10:46:49,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 127. [2020-07-07 10:46:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-07 10:46:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 147 transitions. [2020-07-07 10:46:49,973 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 147 transitions. Word has length 47 [2020-07-07 10:46:49,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:49,974 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 147 transitions. [2020-07-07 10:46:49,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:46:49,974 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 147 transitions. [2020-07-07 10:46:49,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-07 10:46:49,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:49,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:46:49,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:46:49,976 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:49,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:49,977 INFO L82 PathProgramCache]: Analyzing trace with hash 496169114, now seen corresponding path program 1 times [2020-07-07 10:46:49,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:49,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788345758] [2020-07-07 10:46:49,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:50,337 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:50,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:50,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:50,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:50,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788345758] [2020-07-07 10:46:50,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:50,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:46:50,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38725835] [2020-07-07 10:46:50,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:46:50,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:50,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:46:50,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:46:50,421 INFO L87 Difference]: Start difference. First operand 127 states and 147 transitions. Second operand 8 states. [2020-07-07 10:46:50,846 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:46:51,172 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:51,426 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:51,701 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:52,466 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:46:54,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:46:54,384 INFO L93 Difference]: Finished difference Result 436 states and 538 transitions. [2020-07-07 10:46:54,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:46:54,385 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-07-07 10:46:54,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:46:54,394 INFO L225 Difference]: With dead ends: 436 [2020-07-07 10:46:54,395 INFO L226 Difference]: Without dead ends: 333 [2020-07-07 10:46:54,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-07 10:46:54,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-07-07 10:46:54,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 268. [2020-07-07 10:46:54,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-07-07 10:46:54,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 322 transitions. [2020-07-07 10:46:54,471 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 322 transitions. Word has length 52 [2020-07-07 10:46:54,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:46:54,471 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 322 transitions. [2020-07-07 10:46:54,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:46:54,472 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 322 transitions. [2020-07-07 10:46:54,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-07 10:46:54,473 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:46:54,474 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] [2020-07-07 10:46:54,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:46:54,474 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:46:54,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:46:54,475 INFO L82 PathProgramCache]: Analyzing trace with hash 987448314, now seen corresponding path program 1 times [2020-07-07 10:46:54,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:46:54,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271088754] [2020-07-07 10:46:54,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:46:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:54,824 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:46:54,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:46:54,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:46:54,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271088754] [2020-07-07 10:46:54,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:46:54,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 10:46:54,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892479283] [2020-07-07 10:46:54,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 10:46:54,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:46:54,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 10:46:54,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:46:54,959 INFO L87 Difference]: Start difference. First operand 268 states and 322 transitions. Second operand 12 states. [2020-07-07 10:46:55,449 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:46:55,765 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:56,031 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:56,287 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:56,879 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:46:57,673 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:46:58,054 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:46:58,377 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:46:58,654 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:46:59,000 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:46:59,439 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:46:59,745 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:46:59,982 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:01,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:01,860 INFO L93 Difference]: Finished difference Result 1085 states and 1492 transitions. [2020-07-07 10:47:01,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 10:47:01,861 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-07-07 10:47:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:01,869 INFO L225 Difference]: With dead ends: 1085 [2020-07-07 10:47:01,869 INFO L226 Difference]: Without dead ends: 841 [2020-07-07 10:47:01,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-07 10:47:01,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2020-07-07 10:47:02,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 744. [2020-07-07 10:47:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-07-07 10:47:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 944 transitions. [2020-07-07 10:47:02,048 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 944 transitions. Word has length 57 [2020-07-07 10:47:02,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:02,049 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 944 transitions. [2020-07-07 10:47:02,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 10:47:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 944 transitions. [2020-07-07 10:47:02,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-07 10:47:02,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:02,052 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:02,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:47:02,053 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:02,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:02,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1158385600, now seen corresponding path program 1 times [2020-07-07 10:47:02,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:02,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763724960] [2020-07-07 10:47:02,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,349 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:02,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:02,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763724960] [2020-07-07 10:47:02,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:02,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:47:02,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825358585] [2020-07-07 10:47:02,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:02,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:02,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:02,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:47:02,436 INFO L87 Difference]: Start difference. First operand 744 states and 944 transitions. Second operand 6 states. [2020-07-07 10:47:02,744 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:04,272 INFO L93 Difference]: Finished difference Result 1799 states and 2451 transitions. [2020-07-07 10:47:04,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 10:47:04,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-07 10:47:04,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:04,287 INFO L225 Difference]: With dead ends: 1799 [2020-07-07 10:47:04,287 INFO L226 Difference]: Without dead ends: 1079 [2020-07-07 10:47:04,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:04,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2020-07-07 10:47:04,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 988. [2020-07-07 10:47:04,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2020-07-07 10:47:04,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1244 transitions. [2020-07-07 10:47:04,525 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1244 transitions. Word has length 61 [2020-07-07 10:47:04,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:04,526 INFO L479 AbstractCegarLoop]: Abstraction has 988 states and 1244 transitions. [2020-07-07 10:47:04,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:04,526 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1244 transitions. [2020-07-07 10:47:04,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-07-07 10:47:04,530 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:04,531 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:04,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:47:04,532 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:04,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:04,532 INFO L82 PathProgramCache]: Analyzing trace with hash -623744306, now seen corresponding path program 1 times [2020-07-07 10:47:04,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:04,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466857487] [2020-07-07 10:47:04,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,906 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-07 10:47:05,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466857487] [2020-07-07 10:47:05,102 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745420059] [2020-07-07 10:47:05,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:05,284 INFO L264 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-07 10:47:05,295 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:05,406 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 10:47:05,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:05,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 12 [2020-07-07 10:47:05,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399451818] [2020-07-07 10:47:05,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 10:47:05,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:05,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 10:47:05,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:05,409 INFO L87 Difference]: Start difference. First operand 988 states and 1244 transitions. Second operand 12 states. [2020-07-07 10:47:06,169 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-07-07 10:47:06,733 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:08,750 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:09,082 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:12,351 INFO L93 Difference]: Finished difference Result 2658 states and 3627 transitions. [2020-07-07 10:47:12,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-07 10:47:12,352 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-07-07 10:47:12,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:12,367 INFO L225 Difference]: With dead ends: 2658 [2020-07-07 10:47:12,369 INFO L226 Difference]: Without dead ends: 1945 [2020-07-07 10:47:12,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=274, Invalid=986, Unknown=0, NotChecked=0, Total=1260 [2020-07-07 10:47:12,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2020-07-07 10:47:12,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1763. [2020-07-07 10:47:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2020-07-07 10:47:12,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2245 transitions. [2020-07-07 10:47:12,882 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2245 transitions. Word has length 89 [2020-07-07 10:47:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:12,884 INFO L479 AbstractCegarLoop]: Abstraction has 1763 states and 2245 transitions. [2020-07-07 10:47:12,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 10:47:12,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2245 transitions. [2020-07-07 10:47:12,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-07 10:47:12,890 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:12,891 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:13,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-07 10:47:13,104 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:13,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:13,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1766790552, now seen corresponding path program 1 times [2020-07-07 10:47:13,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:13,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698501498] [2020-07-07 10:47:13,110 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,479 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,686 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-07 10:47:13,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698501498] [2020-07-07 10:47:13,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630719573] [2020-07-07 10:47:13,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:13,860 INFO L264 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-07 10:47:13,881 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:13,956 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-07 10:47:13,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:13,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2020-07-07 10:47:13,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944849733] [2020-07-07 10:47:13,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 10:47:13,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:13,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 10:47:13,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:47:13,962 INFO L87 Difference]: Start difference. First operand 1763 states and 2245 transitions. Second operand 5 states. [2020-07-07 10:47:14,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:14,330 INFO L93 Difference]: Finished difference Result 3502 states and 4600 transitions. [2020-07-07 10:47:14,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:47:14,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-07 10:47:14,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:14,343 INFO L225 Difference]: With dead ends: 3502 [2020-07-07 10:47:14,343 INFO L226 Difference]: Without dead ends: 1763 [2020-07-07 10:47:14,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:47:14,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2020-07-07 10:47:14,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1763. [2020-07-07 10:47:14,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2020-07-07 10:47:14,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2239 transitions. [2020-07-07 10:47:14,685 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2239 transitions. Word has length 128 [2020-07-07 10:47:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:14,685 INFO L479 AbstractCegarLoop]: Abstraction has 1763 states and 2239 transitions. [2020-07-07 10:47:14,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 10:47:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2239 transitions. [2020-07-07 10:47:14,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-07 10:47:14,689 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:14,690 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:14,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:14,905 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:14,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:14,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1689143082, now seen corresponding path program 1 times [2020-07-07 10:47:14,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:14,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994211407] [2020-07-07 10:47:14,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,201 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,390 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-07 10:47:15,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994211407] [2020-07-07 10:47:15,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323872195] [2020-07-07 10:47:15,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,580 INFO L264 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:15,596 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:15,721 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-07 10:47:15,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:15,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2020-07-07 10:47:15,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967332379] [2020-07-07 10:47:15,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:15,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:15,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:15,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:15,724 INFO L87 Difference]: Start difference. First operand 1763 states and 2239 transitions. Second operand 6 states. [2020-07-07 10:47:16,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:16,382 INFO L93 Difference]: Finished difference Result 1806 states and 2293 transitions. [2020-07-07 10:47:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 10:47:16,382 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-07 10:47:16,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:16,393 INFO L225 Difference]: With dead ends: 1806 [2020-07-07 10:47:16,393 INFO L226 Difference]: Without dead ends: 1803 [2020-07-07 10:47:16,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-07 10:47:16,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2020-07-07 10:47:16,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1763. [2020-07-07 10:47:16,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2020-07-07 10:47:16,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2227 transitions. [2020-07-07 10:47:16,737 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2227 transitions. Word has length 128 [2020-07-07 10:47:16,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:16,738 INFO L479 AbstractCegarLoop]: Abstraction has 1763 states and 2227 transitions. [2020-07-07 10:47:16,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:16,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2227 transitions. [2020-07-07 10:47:16,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-07 10:47:16,744 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:16,744 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:16,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:16,958 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:16,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:16,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1749608901, now seen corresponding path program 1 times [2020-07-07 10:47:16,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:16,960 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855140922] [2020-07-07 10:47:16,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,274 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,447 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-07 10:47:17,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855140922] [2020-07-07 10:47:17,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619708732] [2020-07-07 10:47:17,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,640 INFO L264 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:17,647 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:17,665 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 10:47:17,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:17,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-07 10:47:17,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348258260] [2020-07-07 10:47:17,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:17,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:17,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:17,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:47:17,667 INFO L87 Difference]: Start difference. First operand 1763 states and 2227 transitions. Second operand 6 states. [2020-07-07 10:47:18,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:18,010 INFO L93 Difference]: Finished difference Result 3258 states and 4184 transitions. [2020-07-07 10:47:18,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:47:18,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-07-07 10:47:18,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:18,020 INFO L225 Difference]: With dead ends: 3258 [2020-07-07 10:47:18,020 INFO L226 Difference]: Without dead ends: 1519 [2020-07-07 10:47:18,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:18,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2020-07-07 10:47:18,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1519. [2020-07-07 10:47:18,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1519 states. [2020-07-07 10:47:18,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 1879 transitions. [2020-07-07 10:47:18,348 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 1879 transitions. Word has length 132 [2020-07-07 10:47:18,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:18,349 INFO L479 AbstractCegarLoop]: Abstraction has 1519 states and 1879 transitions. [2020-07-07 10:47:18,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 1879 transitions. [2020-07-07 10:47:18,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-07 10:47:18,353 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:18,353 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:18,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:18,567 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:18,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:18,568 INFO L82 PathProgramCache]: Analyzing trace with hash 2128978130, now seen corresponding path program 1 times [2020-07-07 10:47:18,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:18,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782855585] [2020-07-07 10:47:18,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:18,912 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,094 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-07 10:47:19,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782855585] [2020-07-07 10:47:19,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050109637] [2020-07-07 10:47:19,097 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:19,270 INFO L264 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:19,276 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:19,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:19,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 14 [2020-07-07 10:47:19,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631574990] [2020-07-07 10:47:19,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 10:47:19,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:19,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 10:47:19,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:19,345 INFO L87 Difference]: Start difference. First operand 1519 states and 1879 transitions. Second operand 14 states. [2020-07-07 10:47:19,858 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:20,556 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:21,260 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 10:47:21,551 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:21,808 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:22,277 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-07 10:47:22,571 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:22,818 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:24,549 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:25,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:25,614 INFO L93 Difference]: Finished difference Result 3127 states and 4150 transitions. [2020-07-07 10:47:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-07 10:47:25,615 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2020-07-07 10:47:25,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:25,627 INFO L225 Difference]: With dead ends: 3127 [2020-07-07 10:47:25,627 INFO L226 Difference]: Without dead ends: 1791 [2020-07-07 10:47:25,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 185 SyntacticMatches, 5 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=335, Invalid=855, Unknown=0, NotChecked=0, Total=1190 [2020-07-07 10:47:25,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2020-07-07 10:47:25,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1387. [2020-07-07 10:47:25,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1387 states. [2020-07-07 10:47:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1710 transitions. [2020-07-07 10:47:26,003 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1710 transitions. Word has length 136 [2020-07-07 10:47:26,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:26,004 INFO L479 AbstractCegarLoop]: Abstraction has 1387 states and 1710 transitions. [2020-07-07 10:47:26,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 10:47:26,005 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1710 transitions. [2020-07-07 10:47:26,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-07 10:47:26,010 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:26,011 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:26,227 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-07 10:47:26,228 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:26,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:26,229 INFO L82 PathProgramCache]: Analyzing trace with hash 2052523815, now seen corresponding path program 2 times [2020-07-07 10:47:26,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:26,230 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072028023] [2020-07-07 10:47:26,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:47:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 10:47:26,649 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-07 10:47:26,652 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 10:47:26,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 10:47:26,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:47:26 BoogieIcfgContainer [2020-07-07 10:47:26,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:47:26,947 INFO L168 Benchmark]: Toolchain (without parser) took 42971.80 ms. Allocated memory was 136.8 MB in the beginning and 904.4 MB in the end (delta: 767.6 MB). Free memory was 100.6 MB in the beginning and 631.4 MB in the end (delta: -530.7 MB). Peak memory consumption was 236.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:26,952 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:47:26,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.86 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 170.6 MB in the end (delta: -70.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:26,955 INFO L168 Benchmark]: Boogie Preprocessor took 88.33 ms. Allocated memory is still 201.3 MB. Free memory was 169.9 MB in the beginning and 166.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:26,956 INFO L168 Benchmark]: RCFGBuilder took 1100.55 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 165.7 MB in the beginning and 197.8 MB in the end (delta: -32.1 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:26,959 INFO L168 Benchmark]: TraceAbstraction took 41126.75 ms. Allocated memory was 231.2 MB in the beginning and 904.4 MB in the end (delta: 673.2 MB). Free memory was 196.3 MB in the beginning and 631.4 MB in the end (delta: -435.0 MB). Peak memory consumption was 238.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:47:26,964 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.86 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.4 MB in the beginning and 170.6 MB in the end (delta: -70.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.33 ms. Allocated memory is still 201.3 MB. Free memory was 169.9 MB in the beginning and 166.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1100.55 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 165.7 MB in the beginning and 197.8 MB in the end (delta: -32.1 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41126.75 ms. Allocated memory was 231.2 MB in the beginning and 904.4 MB in the end (delta: 673.2 MB). Free memory was 196.3 MB in the beginning and 631.4 MB in the end (delta: -435.0 MB). Peak memory consumption was 238.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 329]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L434] int waterLevel = 1; [L435] int methaneLevelCritical = 0; [L697] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=170, \old(head)=176, \old(head)=162, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L410] int retValue_acc ; [L411] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L416] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L946] int retValue_acc ; [L949] retValue_acc = 1 [L950] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L417] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L421] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L422] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L401] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L56] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L68] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L452] COND TRUE waterLevel < 2 [L453] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L68] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L103] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L131] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L138] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L186] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L189] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L204] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L283] int retValue_acc ; [L284] int tmp ; [L285] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L514] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L517] COND FALSE !(waterLevel < 2) [L521] retValue_acc = 0 [L522] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L289] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L289] tmp = isHighWaterSensorDry() [L291] COND FALSE !(\read(tmp)) [L294] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L296] retValue_acc = tmp___0 [L297] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L165] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L169] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L214] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L169] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L204] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L140] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L146] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L895] int tmp ; [L896] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L505] int retValue_acc ; [L508] retValue_acc = waterLevel [L509] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L900] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L900] tmp = getWaterLevel() [L902] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L146] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L103] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L56] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L58] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L103] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L131] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L133] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L440] COND TRUE waterLevel > 0 [L441] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L133] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L138] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L186] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L189] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L191] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L227] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L231] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L473] int retValue_acc ; [L476] retValue_acc = methaneLevelCritical [L477] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L231] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L231] retValue_acc = isMethaneLevelCritical() [L233] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L191] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L191] tmp = isMethaneAlarm() [L193] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L199] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L160] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L178] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L199] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L140] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L146] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L895] int tmp ; [L896] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L900] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L505] int retValue_acc ; [L508] retValue_acc = waterLevel [L509] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L900] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L900] tmp = getWaterLevel() [L902] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L146] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L103] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L56] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L58] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___2)) [L92] tmp___1 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L103] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L131] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L133] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L440] COND TRUE waterLevel > 0 [L441] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L133] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L138] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L186] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L189] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L191] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L227] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L231] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L473] int retValue_acc ; [L476] retValue_acc = methaneLevelCritical [L477] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L231] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L231] retValue_acc = isMethaneLevelCritical() [L233] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L191] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L191] tmp = isMethaneAlarm() [L193] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L199] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L160] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L163] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L178] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L199] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L140] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L146] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L895] int tmp ; [L896] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L900] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L505] int retValue_acc ; [L508] retValue_acc = waterLevel [L509] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L900] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L900] tmp = getWaterLevel() [L902] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L904] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L904] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L904] tmp___0 = isPumpRunning() [L906] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L908] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L329] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.7s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1460 SDtfs, 2846 SDslu, 2577 SDs, 0 SdLazy, 7356 SolverSat, 2137 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1057 GetRequests, 899 SyntacticMatches, 6 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 762 ImplicationChecksByTransitivity, 12.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1763occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 942 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1677 NumberOfCodeBlocks, 1677 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1474 ConstructedInterpolants, 0 QuantifiedInterpolants, 410024 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4153 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 229/264 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...