/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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:37:17,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:37:17,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:37:17,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:37:17,485 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:37:17,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:37:17,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:37:17,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:37:17,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:37:17,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:37:17,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:37:17,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:37:17,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:37:17,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:37:17,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:37:17,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:37:17,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:37:17,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:37:17,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:37:17,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:37:17,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:37:17,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:37:17,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:37:17,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:37:17,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:37:17,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:37:17,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:37:17,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:37:17,528 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:37:17,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:37:17,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:37:17,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:37:17,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:37:17,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:37:17,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:37:17,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:37:17,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:37:17,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:37:17,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:37:17,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:37:17,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:37:17,544 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 [2019-11-07 04:37:17,576 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:37:17,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:37:17,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:37:17,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:37:17,578 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:37:17,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:37:17,582 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:37:17,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:37:17,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:37:17,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:37:17,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:37:17,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:37:17,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:37:17,583 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:37:17,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:37:17,586 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:37:17,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:37:17,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:37:17,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:37:17,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:37:17,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:37:17,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:37:17,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:37:17,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:37:17,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:37:17,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:37:17,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:37:17,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:37:17,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:37:17,906 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:37:17,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:37:17,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:37:17,933 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:37:17,934 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:37:17,935 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-11-07 04:37:18,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/351fee0b6/ad53714f867144ba801137c988896ed7/FLAGfbe6d51c1 [2019-11-07 04:37:18,595 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:37:18,596 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-11-07 04:37:18,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/351fee0b6/ad53714f867144ba801137c988896ed7/FLAGfbe6d51c1 [2019-11-07 04:37:18,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/351fee0b6/ad53714f867144ba801137c988896ed7 [2019-11-07 04:37:18,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:37:18,853 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:37:18,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:37:18,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:37:18,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:37:18,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:37:18" (1/1) ... [2019-11-07 04:37:18,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d6bc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:18, skipping insertion in model container [2019-11-07 04:37:18,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:37:18" (1/1) ... [2019-11-07 04:37:18,871 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:37:18,925 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:37:19,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:37:19,418 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:37:19,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:37:19,576 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:37:19,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19 WrapperNode [2019-11-07 04:37:19,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:37:19,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:37:19,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:37:19,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:37:19,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19" (1/1) ... [2019-11-07 04:37:19,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19" (1/1) ... [2019-11-07 04:37:19,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19" (1/1) ... [2019-11-07 04:37:19,617 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19" (1/1) ... [2019-11-07 04:37:19,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19" (1/1) ... [2019-11-07 04:37:19,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19" (1/1) ... [2019-11-07 04:37:19,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19" (1/1) ... [2019-11-07 04:37:19,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:37:19,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:37:19,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:37:19,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:37:19,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19" (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 [2019-11-07 04:37:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:37:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:37:19,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:37:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:37:19,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-11-07 04:37:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:37:19,758 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 04:37:19,759 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-11-07 04:37:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:37:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-11-07 04:37:19,760 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-11-07 04:37:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-11-07 04:37:19,761 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-11-07 04:37:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-11-07 04:37:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-11-07 04:37:19,762 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-11-07 04:37:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-11-07 04:37:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:37:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:37:19,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:37:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:37:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:37:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:37:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:37:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:37:19,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:37:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:37:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-11-07 04:37:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-11-07 04:37:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-11-07 04:37:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-11-07 04:37:19,767 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-11-07 04:37:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-11-07 04:37:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-11-07 04:37:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-11-07 04:37:19,768 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:37:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:37:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:37:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:37:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:37:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:37:19,769 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:37:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:37:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:37:19,770 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:37:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:37:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:37:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:37:19,770 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-11-07 04:37:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-11-07 04:37:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-11-07 04:37:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-11-07 04:37:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-11-07 04:37:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:37:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-11-07 04:37:19,771 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-11-07 04:37:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-11-07 04:37:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-11-07 04:37:19,772 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-11-07 04:37:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-11-07 04:37:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-11-07 04:37:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-11-07 04:37:19,773 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-11-07 04:37:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-11-07 04:37:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-11-07 04:37:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-11-07 04:37:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-11-07 04:37:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-11-07 04:37:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-11-07 04:37:19,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:37:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:37:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-11-07 04:37:19,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-11-07 04:37:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-11-07 04:37:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-11-07 04:37:19,776 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:37:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:37:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:37:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:37:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:37:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:37:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:37:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:37:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:37:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:37:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:37:19,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:37:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:37:19,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:37:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:37:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:37:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:37:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:37:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:37:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:37:19,782 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:37:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:37:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:37:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:37:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:37:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:37:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:37:19,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:37:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:37:21,658 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:37:21,659 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-07 04:37:21,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:37:21 BoogieIcfgContainer [2019-11-07 04:37:21,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:37:21,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:37:21,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:37:21,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:37:21,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:37:18" (1/3) ... [2019-11-07 04:37:21,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae2e43e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:37:21, skipping insertion in model container [2019-11-07 04:37:21,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:37:19" (2/3) ... [2019-11-07 04:37:21,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ae2e43e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:37:21, skipping insertion in model container [2019-11-07 04:37:21,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:37:21" (3/3) ... [2019-11-07 04:37:21,669 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2019-11-07 04:37:21,679 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:37:21,687 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:37:21,699 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:37:21,726 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:37:21,726 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:37:21,726 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:37:21,726 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:37:21,727 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:37:21,727 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:37:21,727 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:37:21,727 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:37:21,751 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2019-11-07 04:37:21,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 04:37:21,761 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:37:21,763 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:37:21,765 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:37:21,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:37:21,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1770503900, now seen corresponding path program 1 times [2019-11-07 04:37:21,781 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:37:21,782 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363019713] [2019-11-07 04:37:21,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:37:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:37:22,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:37:22,159 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363019713] [2019-11-07 04:37:22,160 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:37:22,161 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:37:22,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026765616] [2019-11-07 04:37:22,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:37:22,178 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:37:22,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:37:22,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:37:22,194 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 2 states. [2019-11-07 04:37:22,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:37:22,241 INFO L93 Difference]: Finished difference Result 278 states and 337 transitions. [2019-11-07 04:37:22,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:37:22,243 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-11-07 04:37:22,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:37:22,257 INFO L225 Difference]: With dead ends: 278 [2019-11-07 04:37:22,258 INFO L226 Difference]: Without dead ends: 141 [2019-11-07 04:37:22,264 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:37:22,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-07 04:37:22,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2019-11-07 04:37:22,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-11-07 04:37:22,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 164 transitions. [2019-11-07 04:37:22,324 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 164 transitions. Word has length 52 [2019-11-07 04:37:22,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:37:22,325 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 164 transitions. [2019-11-07 04:37:22,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:37:22,325 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 164 transitions. [2019-11-07 04:37:22,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-07 04:37:22,329 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:37:22,329 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:37:22,329 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:37:22,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:37:22,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1772281623, now seen corresponding path program 1 times [2019-11-07 04:37:22,330 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:37:22,330 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695838826] [2019-11-07 04:37:22,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:37:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:37:22,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:37:22,439 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695838826] [2019-11-07 04:37:22,439 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:37:22,439 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:37:22,440 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832700942] [2019-11-07 04:37:22,443 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:37:22,443 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:37:22,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:37:22,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:37:22,444 INFO L87 Difference]: Start difference. First operand 141 states and 164 transitions. Second operand 3 states. [2019-11-07 04:37:22,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:37:22,491 INFO L93 Difference]: Finished difference Result 232 states and 271 transitions. [2019-11-07 04:37:22,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:37:22,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-11-07 04:37:22,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:37:22,494 INFO L225 Difference]: With dead ends: 232 [2019-11-07 04:37:22,494 INFO L226 Difference]: Without dead ends: 133 [2019-11-07 04:37:22,496 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:37:22,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-07 04:37:22,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-11-07 04:37:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-07 04:37:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2019-11-07 04:37:22,514 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 53 [2019-11-07 04:37:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:37:22,514 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2019-11-07 04:37:22,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:37:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2019-11-07 04:37:22,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-07 04:37:22,517 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:37:22,517 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:37:22,518 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:37:22,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:37:22,518 INFO L82 PathProgramCache]: Analyzing trace with hash -229940485, now seen corresponding path program 1 times [2019-11-07 04:37:22,518 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:37:22,519 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917715499] [2019-11-07 04:37:22,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:37:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:37:22,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:37:22,716 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917715499] [2019-11-07 04:37:22,717 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:37:22,717 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:37:22,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739729953] [2019-11-07 04:37:22,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:37:22,718 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:37:22,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:37:22,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:37:22,719 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 7 states. [2019-11-07 04:37:23,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:37:23,140 INFO L93 Difference]: Finished difference Result 241 states and 282 transitions. [2019-11-07 04:37:23,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:37:23,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-07 04:37:23,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:37:23,143 INFO L225 Difference]: With dead ends: 241 [2019-11-07 04:37:23,143 INFO L226 Difference]: Without dead ends: 133 [2019-11-07 04:37:23,144 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:37:23,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-07 04:37:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-11-07 04:37:23,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-07 04:37:23,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 152 transitions. [2019-11-07 04:37:23,171 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 152 transitions. Word has length 56 [2019-11-07 04:37:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:37:23,173 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 152 transitions. [2019-11-07 04:37:23,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:37:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 152 transitions. [2019-11-07 04:37:23,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-11-07 04:37:23,188 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:37:23,188 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:37:23,189 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:37:23,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:37:23,189 INFO L82 PathProgramCache]: Analyzing trace with hash 2133725690, now seen corresponding path program 1 times [2019-11-07 04:37:23,189 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:37:23,190 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603989324] [2019-11-07 04:37:23,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:37:23,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:37:23,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:37:23,404 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603989324] [2019-11-07 04:37:23,404 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:37:23,405 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:37:23,405 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954979547] [2019-11-07 04:37:23,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:37:23,406 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:37:23,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:37:23,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:37:23,406 INFO L87 Difference]: Start difference. First operand 133 states and 152 transitions. Second operand 5 states. [2019-11-07 04:37:23,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:37:23,983 INFO L93 Difference]: Finished difference Result 351 states and 417 transitions. [2019-11-07 04:37:23,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:37:23,984 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2019-11-07 04:37:23,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:37:23,987 INFO L225 Difference]: With dead ends: 351 [2019-11-07 04:37:23,988 INFO L226 Difference]: Without dead ends: 243 [2019-11-07 04:37:23,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:37:23,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-11-07 04:37:24,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 226. [2019-11-07 04:37:24,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-11-07 04:37:24,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 251 transitions. [2019-11-07 04:37:24,017 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 251 transitions. Word has length 73 [2019-11-07 04:37:24,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:37:24,018 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 251 transitions. [2019-11-07 04:37:24,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:37:24,018 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 251 transitions. [2019-11-07 04:37:24,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-11-07 04:37:24,021 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:37:24,021 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-07 04:37:24,021 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:37:24,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:37:24,022 INFO L82 PathProgramCache]: Analyzing trace with hash 282239929, now seen corresponding path program 1 times [2019-11-07 04:37:24,022 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:37:24,022 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896834053] [2019-11-07 04:37:24,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:37:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:37:24,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-07 04:37:24,182 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896834053] [2019-11-07 04:37:24,182 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:37:24,182 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:37:24,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144430043] [2019-11-07 04:37:24,184 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:37:24,184 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:37:24,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:37:24,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:37:24,186 INFO L87 Difference]: Start difference. First operand 226 states and 251 transitions. Second operand 7 states. [2019-11-07 04:37:24,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:37:24,834 INFO L93 Difference]: Finished difference Result 443 states and 507 transitions. [2019-11-07 04:37:24,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:37:24,835 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-11-07 04:37:24,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:37:24,841 INFO L225 Difference]: With dead ends: 443 [2019-11-07 04:37:24,841 INFO L226 Difference]: Without dead ends: 242 [2019-11-07 04:37:24,842 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-11-07 04:37:24,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-11-07 04:37:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 225. [2019-11-07 04:37:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-11-07 04:37:24,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 248 transitions. [2019-11-07 04:37:24,869 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 248 transitions. Word has length 83 [2019-11-07 04:37:24,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:37:24,869 INFO L462 AbstractCegarLoop]: Abstraction has 225 states and 248 transitions. [2019-11-07 04:37:24,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:37:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 248 transitions. [2019-11-07 04:37:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-11-07 04:37:24,871 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:37:24,871 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2019-11-07 04:37:24,872 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:37:24,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:37:24,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1249289671, now seen corresponding path program 1 times [2019-11-07 04:37:24,872 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:37:24,872 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986239403] [2019-11-07 04:37:24,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:37:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:37:25,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:37:25,122 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986239403] [2019-11-07 04:37:25,123 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:37:25,123 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:37:25,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848762072] [2019-11-07 04:37:25,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:37:25,125 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:37:25,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:37:25,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:37:25,126 INFO L87 Difference]: Start difference. First operand 225 states and 248 transitions. Second operand 12 states. [2019-11-07 04:37:26,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:37:26,087 INFO L93 Difference]: Finished difference Result 584 states and 669 transitions. [2019-11-07 04:37:26,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-07 04:37:26,087 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2019-11-07 04:37:26,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:37:26,092 INFO L225 Difference]: With dead ends: 584 [2019-11-07 04:37:26,092 INFO L226 Difference]: Without dead ends: 384 [2019-11-07 04:37:26,093 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:37:26,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2019-11-07 04:37:26,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 375. [2019-11-07 04:37:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-11-07 04:37:26,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 426 transitions. [2019-11-07 04:37:26,141 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 426 transitions. Word has length 96 [2019-11-07 04:37:26,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:37:26,142 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 426 transitions. [2019-11-07 04:37:26,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:37:26,142 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 426 transitions. [2019-11-07 04:37:26,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-11-07 04:37:26,144 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:37:26,144 INFO L410 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:37:26,145 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:37:26,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:37:26,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1716035124, now seen corresponding path program 1 times [2019-11-07 04:37:26,145 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:37:26,145 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67887952] [2019-11-07 04:37:26,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:37:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:37:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-07 04:37:26,299 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67887952] [2019-11-07 04:37:26,299 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:37:26,299 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:37:26,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086731027] [2019-11-07 04:37:26,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:37:26,300 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:37:26,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:37:26,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:37:26,301 INFO L87 Difference]: Start difference. First operand 375 states and 426 transitions. Second operand 9 states. [2019-11-07 04:37:27,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:37:27,329 INFO L93 Difference]: Finished difference Result 1163 states and 1358 transitions. [2019-11-07 04:37:27,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 04:37:27,330 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2019-11-07 04:37:27,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:37:27,342 INFO L225 Difference]: With dead ends: 1163 [2019-11-07 04:37:27,342 INFO L226 Difference]: Without dead ends: 879 [2019-11-07 04:37:27,343 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-11-07 04:37:27,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2019-11-07 04:37:27,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 769. [2019-11-07 04:37:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2019-11-07 04:37:27,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 880 transitions. [2019-11-07 04:37:27,424 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 880 transitions. Word has length 99 [2019-11-07 04:37:27,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:37:27,424 INFO L462 AbstractCegarLoop]: Abstraction has 769 states and 880 transitions. [2019-11-07 04:37:27,424 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:37:27,425 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 880 transitions. [2019-11-07 04:37:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-11-07 04:37:27,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:37:27,431 INFO L410 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:37:27,431 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:37:27,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:37:27,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1968054454, now seen corresponding path program 1 times [2019-11-07 04:37:27,433 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:37:27,434 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777841334] [2019-11-07 04:37:27,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:37:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:37:27,590 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 04:37:27,590 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777841334] [2019-11-07 04:37:27,590 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242202372] [2019-11-07 04:37:27,591 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 [2019-11-07 04:37:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:37:27,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-07 04:37:27,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:37:28,066 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 31 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:37:28,067 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:37:28,591 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-11-07 04:37:28,592 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [208881030] [2019-11-07 04:37:28,622 INFO L159 IcfgInterpreter]: Started Sifa with 122 locations of interest [2019-11-07 04:37:28,623 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:37:28,635 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:37:28,643 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:37:28,644 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:37:39,267 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-11-07 04:37:40,970 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-11-07 04:37:41,120 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:37:41,306 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:37:41,435 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:37:41,784 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:37:41,911 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:37:42,026 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-11-07 04:37:42,265 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-11-07 04:37:42,274 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-11-07 04:37:42,284 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-11-07 04:37:42,569 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:37:42,753 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:37:42,925 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:43,084 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:37:43,188 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:37:43,341 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:43,446 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:37:43,582 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:37:43,790 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:43,909 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:37:44,021 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-11-07 04:37:44,167 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:44,357 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:44,522 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:44,660 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:44,819 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:44,940 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:45,068 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:45,184 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:45,345 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:45,474 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:45,676 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:45,793 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:45,930 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:46,135 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:37:46,247 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:37:46,384 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-11-07 04:37:46,499 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:37:46,612 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-11-07 04:37:46,753 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-11-07 04:37:46,918 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-11-07 04:37:47,037 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-11-07 04:37:47,171 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-11-07 04:37:47,287 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-11-07 04:37:47,408 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-11-07 04:37:47,565 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-11-07 04:37:47,584 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 548 for LOIs [2019-11-07 04:37:47,746 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-11-07 04:37:47,861 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-11-07 04:37:47,989 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:48,321 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:48,329 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 550 for LOIs [2019-11-07 04:37:48,532 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-11-07 04:37:48,910 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:49,482 WARN L191 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 579 [2019-11-07 04:37:49,590 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-11-07 04:37:49,881 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-11-07 04:37:50,391 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 579 DAG size of output: 579 [2019-11-07 04:37:50,867 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-11-07 04:37:51,371 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 582 [2019-11-07 04:37:52,115 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 202 [2019-11-07 04:37:52,438 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-11-07 04:37:52,857 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2019-11-07 04:37:53,112 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-11-07 04:37:53,296 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 187 [2019-11-07 04:37:53,501 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 191 [2019-11-07 04:37:53,887 WARN L191 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 629 DAG size of output: 629 [2019-11-07 04:37:54,280 WARN L191 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 629 DAG size of output: 629 [2019-11-07 04:37:55,711 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 142 for LOIs [2019-11-07 04:37:55,715 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 151 for LOIs