/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 11:31:59,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 11:31:59,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 11:31:59,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 11:31:59,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 11:31:59,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 11:31:59,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 11:31:59,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 11:31:59,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 11:31:59,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 11:31:59,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 11:31:59,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 11:31:59,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 11:31:59,578 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 11:31:59,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 11:31:59,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 11:31:59,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 11:31:59,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 11:31:59,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 11:31:59,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 11:31:59,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 11:31:59,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 11:31:59,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 11:31:59,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 11:31:59,603 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 11:31:59,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 11:31:59,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 11:31:59,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 11:31:59,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 11:31:59,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 11:31:59,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 11:31:59,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 11:31:59,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 11:31:59,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 11:31:59,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 11:31:59,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 11:31:59,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 11:31:59,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 11:31:59,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 11:31:59,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 11:31:59,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 11:31:59,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 11:31:59,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 11:31:59,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 11:31:59,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 11:31:59,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 11:31:59,659 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 11:31:59,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 11:31:59,659 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 11:31:59,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 11:31:59,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 11:31:59,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 11:31:59,660 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 11:31:59,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 11:31:59,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 11:31:59,661 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 11:31:59,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 11:31:59,661 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 11:31:59,661 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 11:31:59,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 11:31:59,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 11:31:59,662 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 11:31:59,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 11:31:59,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:31:59,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 11:31:59,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 11:31:59,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 11:31:59,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 11:31:59,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 11:31:59,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 11:31:59,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 11:31:59,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 11:31:59,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 11:31:59,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 11:31:59,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 11:31:59,964 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 11:31:59,965 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 11:31:59,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-07-17 11:32:00,037 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01fad4205/07a0f199d9264708aede87a10bd42684/FLAGb47f207fb [2020-07-17 11:32:00,577 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 11:32:00,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-07-17 11:32:00,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01fad4205/07a0f199d9264708aede87a10bd42684/FLAGb47f207fb [2020-07-17 11:32:00,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01fad4205/07a0f199d9264708aede87a10bd42684 [2020-07-17 11:32:00,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 11:32:00,877 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 11:32:00,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 11:32:00,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 11:32:00,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 11:32:00,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:32:00" (1/1) ... [2020-07-17 11:32:00,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b95161a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:00, skipping insertion in model container [2020-07-17 11:32:00,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 11:32:00" (1/1) ... [2020-07-17 11:32:00,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 11:32:00,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 11:32:01,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:32:01,411 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 11:32:01,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 11:32:01,532 INFO L208 MainTranslator]: Completed translation [2020-07-17 11:32:01,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01 WrapperNode [2020-07-17 11:32:01,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 11:32:01,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 11:32:01,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 11:32:01,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 11:32:01,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01" (1/1) ... [2020-07-17 11:32:01,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01" (1/1) ... [2020-07-17 11:32:01,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01" (1/1) ... [2020-07-17 11:32:01,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01" (1/1) ... [2020-07-17 11:32:01,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01" (1/1) ... [2020-07-17 11:32:01,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01" (1/1) ... [2020-07-17 11:32:01,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01" (1/1) ... [2020-07-17 11:32:01,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 11:32:01,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 11:32:01,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 11:32:01,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 11:32:01,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 11:32:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 11:32:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 11:32:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-17 11:32:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-17 11:32:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-17 11:32:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-17 11:32:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-17 11:32:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-17 11:32:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-17 11:32:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-17 11:32:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-17 11:32:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-17 11:32:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-17 11:32:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-17 11:32:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-17 11:32:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-17 11:32:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-17 11:32:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 11:32:01,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:32:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-17 11:32:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-17 11:32:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-17 11:32:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-17 11:32:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-17 11:32:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-17 11:32:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-17 11:32:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-17 11:32:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-17 11:32:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-17 11:32:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-17 11:32:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-17 11:32:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-17 11:32:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-17 11:32:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-17 11:32:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-17 11:32:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-17 11:32:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-17 11:32:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-17 11:32:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-17 11:32:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 11:32:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 11:32:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-17 11:32:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-17 11:32:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-17 11:32:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-17 11:32:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-17 11:32:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-17 11:32:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 11:32:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-17 11:32:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-17 11:32:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 11:32:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 11:32:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 11:32:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 11:32:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-17 11:32:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 11:32:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-17 11:32:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-17 11:32:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 11:32:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-17 11:32:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-17 11:32:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 11:32:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-17 11:32:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-17 11:32:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-17 11:32:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-17 11:32:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-17 11:32:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-17 11:32:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-17 11:32:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-17 11:32:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-17 11:32:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-17 11:32:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 11:32:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-17 11:32:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-17 11:32:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-17 11:32:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-17 11:32:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-17 11:32:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-17 11:32:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-17 11:32:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-17 11:32:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-17 11:32:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-17 11:32:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-17 11:32:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-17 11:32:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-17 11:32:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-17 11:32:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-17 11:32:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-17 11:32:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 11:32:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 11:32:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 11:32:02,848 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 11:32:02,849 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-17 11:32:02,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:32:02 BoogieIcfgContainer [2020-07-17 11:32:02,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 11:32:02,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 11:32:02,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 11:32:02,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 11:32:02,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 11:32:00" (1/3) ... [2020-07-17 11:32:02,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161b3e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:32:02, skipping insertion in model container [2020-07-17 11:32:02,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 11:32:01" (2/3) ... [2020-07-17 11:32:02,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161b3e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 11:32:02, skipping insertion in model container [2020-07-17 11:32:02,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 11:32:02" (3/3) ... [2020-07-17 11:32:02,863 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-07-17 11:32:02,874 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 11:32:02,882 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 11:32:02,895 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 11:32:02,920 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 11:32:02,920 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 11:32:02,921 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 11:32:02,921 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 11:32:02,921 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 11:32:02,921 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 11:32:02,921 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 11:32:02,922 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 11:32:02,944 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-07-17 11:32:02,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-17 11:32:02,955 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:02,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:02,956 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:02,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:02,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1020125937, now seen corresponding path program 1 times [2020-07-17 11:32:02,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:02,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690213566] [2020-07-17 11:32:02,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:03,618 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:03,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:03,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:03,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:03,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690213566] [2020-07-17 11:32:03,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:03,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 11:32:03,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141100797] [2020-07-17 11:32:03,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 11:32:03,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:03,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 11:32:03,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:32:03,775 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-07-17 11:32:04,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:04,952 INFO L93 Difference]: Finished difference Result 282 states and 370 transitions. [2020-07-17 11:32:04,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 11:32:04,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-17 11:32:04,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:04,969 INFO L225 Difference]: With dead ends: 282 [2020-07-17 11:32:04,969 INFO L226 Difference]: Without dead ends: 153 [2020-07-17 11:32:04,974 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 11:32:04,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-07-17 11:32:05,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 120. [2020-07-17 11:32:05,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-17 11:32:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-07-17 11:32:05,065 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 52 [2020-07-17 11:32:05,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:05,068 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-07-17 11:32:05,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 11:32:05,068 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-07-17 11:32:05,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-17 11:32:05,073 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:05,073 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:05,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 11:32:05,074 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:05,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:05,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1976002315, now seen corresponding path program 1 times [2020-07-17 11:32:05,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:05,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582112154] [2020-07-17 11:32:05,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,471 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:05,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:05,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582112154] [2020-07-17 11:32:05,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:05,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 11:32:05,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310868958] [2020-07-17 11:32:05,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 11:32:05,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:05,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 11:32:05,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 11:32:05,521 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2020-07-17 11:32:05,934 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:32:06,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:06,673 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2020-07-17 11:32:06,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 11:32:06,674 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-17 11:32:06,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:06,677 INFO L225 Difference]: With dead ends: 205 [2020-07-17 11:32:06,678 INFO L226 Difference]: Without dead ends: 137 [2020-07-17 11:32:06,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 11:32:06,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-07-17 11:32:06,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 111. [2020-07-17 11:32:06,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-17 11:32:06,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 128 transitions. [2020-07-17 11:32:06,732 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 128 transitions. Word has length 53 [2020-07-17 11:32:06,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:06,733 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 128 transitions. [2020-07-17 11:32:06,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 11:32:06,733 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 128 transitions. [2020-07-17 11:32:06,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-17 11:32:06,745 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:06,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:06,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 11:32:06,746 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:06,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:06,746 INFO L82 PathProgramCache]: Analyzing trace with hash -979616740, now seen corresponding path program 1 times [2020-07-17 11:32:06,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:06,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109694808] [2020-07-17 11:32:06,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:07,156 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:07,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:07,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:07,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109694808] [2020-07-17 11:32:07,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:07,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:32:07,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941757765] [2020-07-17 11:32:07,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:32:07,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:07,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:32:07,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:32:07,266 INFO L87 Difference]: Start difference. First operand 111 states and 128 transitions. Second operand 8 states. [2020-07-17 11:32:07,667 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:07,990 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-17 11:32:08,259 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:08,492 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:09,225 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-17 11:32:10,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:10,745 INFO L93 Difference]: Finished difference Result 390 states and 482 transitions. [2020-07-17 11:32:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-17 11:32:10,746 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-17 11:32:10,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:10,750 INFO L225 Difference]: With dead ends: 390 [2020-07-17 11:32:10,750 INFO L226 Difference]: Without dead ends: 303 [2020-07-17 11:32:10,751 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-17 11:32:10,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-07-17 11:32:10,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 242. [2020-07-17 11:32:10,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-07-17 11:32:10,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 291 transitions. [2020-07-17 11:32:10,828 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 291 transitions. Word has length 58 [2020-07-17 11:32:10,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:10,829 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 291 transitions. [2020-07-17 11:32:10,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:32:10,829 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 291 transitions. [2020-07-17 11:32:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-17 11:32:10,831 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:10,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:10,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 11:32:10,831 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:10,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:10,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1983050375, now seen corresponding path program 1 times [2020-07-17 11:32:10,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:10,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162568613] [2020-07-17 11:32:10,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:10,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,174 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:11,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:11,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162568613] [2020-07-17 11:32:11,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:11,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 11:32:11,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039345969] [2020-07-17 11:32:11,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 11:32:11,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:11,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 11:32:11,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 11:32:11,264 INFO L87 Difference]: Start difference. First operand 242 states and 291 transitions. Second operand 8 states. [2020-07-17 11:32:11,689 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:12,911 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:13,199 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:13,441 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-17 11:32:13,669 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:14,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:14,282 INFO L93 Difference]: Finished difference Result 741 states and 971 transitions. [2020-07-17 11:32:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 11:32:14,285 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-07-17 11:32:14,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:14,292 INFO L225 Difference]: With dead ends: 741 [2020-07-17 11:32:14,292 INFO L226 Difference]: Without dead ends: 523 [2020-07-17 11:32:14,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-07-17 11:32:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2020-07-17 11:32:14,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 457. [2020-07-17 11:32:14,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-07-17 11:32:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 563 transitions. [2020-07-17 11:32:14,405 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 563 transitions. Word has length 63 [2020-07-17 11:32:14,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:14,405 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 563 transitions. [2020-07-17 11:32:14,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 11:32:14,406 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 563 transitions. [2020-07-17 11:32:14,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-17 11:32:14,408 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:14,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:14,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 11:32:14,409 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:14,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:14,409 INFO L82 PathProgramCache]: Analyzing trace with hash -572770771, now seen corresponding path program 1 times [2020-07-17 11:32:14,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:14,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227431176] [2020-07-17 11:32:14,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,667 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-17 11:32:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 11:32:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 11:32:14,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227431176] [2020-07-17 11:32:14,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 11:32:14,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 11:32:14,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249187271] [2020-07-17 11:32:14,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 11:32:14,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 11:32:14,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 11:32:14,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 11:32:14,739 INFO L87 Difference]: Start difference. First operand 457 states and 563 transitions. Second operand 6 states. [2020-07-17 11:32:15,083 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-17 11:32:15,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 11:32:15,952 INFO L93 Difference]: Finished difference Result 806 states and 1047 transitions. [2020-07-17 11:32:15,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 11:32:15,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-07-17 11:32:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 11:32:15,956 INFO L225 Difference]: With dead ends: 806 [2020-07-17 11:32:15,957 INFO L226 Difference]: Without dead ends: 373 [2020-07-17 11:32:15,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-07-17 11:32:15,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2020-07-17 11:32:16,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 323. [2020-07-17 11:32:16,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2020-07-17 11:32:16,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 374 transitions. [2020-07-17 11:32:16,018 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 374 transitions. Word has length 67 [2020-07-17 11:32:16,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 11:32:16,019 INFO L479 AbstractCegarLoop]: Abstraction has 323 states and 374 transitions. [2020-07-17 11:32:16,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 11:32:16,019 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 374 transitions. [2020-07-17 11:32:16,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-17 11:32:16,021 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 11:32:16,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 11:32:16,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 11:32:16,021 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 11:32:16,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 11:32:16,022 INFO L82 PathProgramCache]: Analyzing trace with hash 935934029, now seen corresponding path program 1 times [2020-07-17 11:32:16,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 11:32:16,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16003308] [2020-07-17 11:32:16,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 11:32:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:32:16,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-17 11:32:16,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-17 11:32:16,190 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 11:32:16,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 11:32:16,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 11:32:16 BoogieIcfgContainer [2020-07-17 11:32:16,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 11:32:16,334 INFO L168 Benchmark]: Toolchain (without parser) took 15457.76 ms. Allocated memory was 146.3 MB in the beginning and 460.3 MB in the end (delta: 314.0 MB). Free memory was 103.2 MB in the beginning and 161.4 MB in the end (delta: -58.2 MB). Peak memory consumption was 255.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:16,337 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 11:32:16,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.20 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 102.8 MB in the beginning and 173.0 MB in the end (delta: -70.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:16,339 INFO L168 Benchmark]: Boogie Preprocessor took 130.81 ms. Allocated memory is still 205.0 MB. Free memory was 173.0 MB in the beginning and 169.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:16,339 INFO L168 Benchmark]: RCFGBuilder took 1190.01 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 169.0 MB in the beginning and 193.3 MB in the end (delta: -24.3 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:16,340 INFO L168 Benchmark]: TraceAbstraction took 13476.36 ms. Allocated memory was 234.9 MB in the beginning and 460.3 MB in the end (delta: 225.4 MB). Free memory was 193.3 MB in the beginning and 161.4 MB in the end (delta: 31.8 MB). Peak memory consumption was 257.3 MB. Max. memory is 7.1 GB. [2020-07-17 11:32:16,345 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 146.3 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 655.20 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 102.8 MB in the beginning and 173.0 MB in the end (delta: -70.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.81 ms. Allocated memory is still 205.0 MB. Free memory was 173.0 MB in the beginning and 169.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1190.01 ms. Allocated memory was 205.0 MB in the beginning and 234.9 MB in the end (delta: 29.9 MB). Free memory was 169.0 MB in the beginning and 193.3 MB in the end (delta: -24.3 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13476.36 ms. Allocated memory was 234.9 MB in the beginning and 460.3 MB in the end (delta: 225.4 MB). Free memory was 193.3 MB in the beginning and 161.4 MB in the end (delta: 31.8 MB). Peak memory consumption was 257.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=162, \old(head)=176, \old(methaneLevelCritical)=143, \old(pumpRunning)=132, \old(systemActive)=131, \old(waterLevel)=137, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] int retValue_acc ; [L523] 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] [L527] 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] [L528] 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] [L529] 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] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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] [L529] 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] [L529] tmp = valid_product() [L531] 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] [L533] 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] [L534] 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] [L516] 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] [L766] int splverifierCounter ; [L767] int tmp ; [L768] int tmp___0 ; [L769] int tmp___1 ; [L770] int tmp___2 ; [L773] 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] [L775] 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] [L777] 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] [L783] tmp = __VERIFIER_nondet_int() [L785] 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] [L787] 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] [L852] COND TRUE waterLevel < 2 [L853] 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] [L787] 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] [L793] tmp___0 = __VERIFIER_nondet_int() [L795] 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] [L803] tmp___2 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___2)) [L811] tmp___1 = __VERIFIER_nondet_int() [L813] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L815] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L815] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L822] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L597] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L604] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L612] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L556] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L562] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L562] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L566] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L566] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L572] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L927] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 533 SDtfs, 843 SDslu, 385 SDs, 0 SdLazy, 1890 SolverSat, 558 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=457occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 236 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 83172 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...