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_spec4_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:16:57,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:16:57,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:16:57,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:16:57,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:16:57,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:16:57,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:16:57,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:16:57,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:16:57,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:16:57,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:16:57,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:16:57,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:16:57,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:16:57,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:16:57,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:16:57,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:16:57,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:16:57,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:16:57,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:16:57,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:16:57,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:16:57,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:16:57,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:16:57,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:16:57,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:16:57,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:16:57,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:16:57,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:16:57,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:16:57,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:16:57,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:16:57,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:16:57,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:16:57,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:16:57,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:16:57,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:16:57,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:16:57,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:16:57,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:16:57,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:16:57,379 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 [2019-10-13 23:16:57,398 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:16:57,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:16:57,400 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:16:57,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:16:57,401 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:16:57,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:16:57,401 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:16:57,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:16:57,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:16:57,402 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:16:57,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:16:57,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:16:57,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:16:57,404 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:16:57,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:16:57,404 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:16:57,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:16:57,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:16:57,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:16:57,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:16:57,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:16:57,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:16:57,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:16:57,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:16:57,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:16:57,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:16:57,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:16:57,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:16:57,407 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 [2019-10-13 23:16:57,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:16:57,754 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:16:57,758 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:16:57,760 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:16:57,760 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:16:57,761 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2019-10-13 23:16:57,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c48b01df/bb33c651be1e491081bc75b5d1439dbc/FLAG256f039ea [2019-10-13 23:16:58,355 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:16:58,356 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2019-10-13 23:16:58,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c48b01df/bb33c651be1e491081bc75b5d1439dbc/FLAG256f039ea [2019-10-13 23:16:58,675 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c48b01df/bb33c651be1e491081bc75b5d1439dbc [2019-10-13 23:16:58,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:16:58,685 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:16:58,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:58,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:16:58,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:16:58,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39cbab6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:58, skipping insertion in model container [2019-10-13 23:16:58,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:16:58" (1/1) ... [2019-10-13 23:16:58,702 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:16:58,748 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:16:59,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:59,207 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:16:59,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:16:59,364 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:16:59,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59 WrapperNode [2019-10-13 23:16:59,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:16:59,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:16:59,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:16:59,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:16:59,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59" (1/1) ... [2019-10-13 23:16:59,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59" (1/1) ... [2019-10-13 23:16:59,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59" (1/1) ... [2019-10-13 23:16:59,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59" (1/1) ... [2019-10-13 23:16:59,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59" (1/1) ... [2019-10-13 23:16:59,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59" (1/1) ... [2019-10-13 23:16:59,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59" (1/1) ... [2019-10-13 23:16:59,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:16:59,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:16:59,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:16:59,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:16:59,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59" (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 [2019-10-13 23:16:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:16:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:16:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:16:59,518 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:16:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 23:16:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:16:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:16:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:16:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:16:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:16:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:16:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:16:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:16:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:16:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:16:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:16:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:16:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:16:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:16:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:16:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:16:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:16:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:16:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:16:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:16:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:16:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:16:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:16:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:16:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:16:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:16:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:16:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:16:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:16:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:16:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:16:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:16:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:16:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:16:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:16:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:16:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:16:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:16:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:16:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:16:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:16:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:16:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:16:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:16:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:16:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:16:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:16:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:16:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-13 23:16:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:16:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:16:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:16:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:16:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:16:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 23:16:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:16:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:16:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:16:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:16:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:16:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:16:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:16:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:16:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:16:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:16:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:16:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:16:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:16:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:16:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:16:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:16:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:16:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:16:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:16:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:16:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:16:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:16:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:16:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:16:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:16:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:16:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:16:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:16:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:16:59,534 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:16:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:16:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:16:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:16:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:16:59,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:17:01,182 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:17:01,183 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:17:01,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:01 BoogieIcfgContainer [2019-10-13 23:17:01,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:17:01,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:17:01,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:17:01,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:17:01,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:16:58" (1/3) ... [2019-10-13 23:17:01,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f88a83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:01, skipping insertion in model container [2019-10-13 23:17:01,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:16:59" (2/3) ... [2019-10-13 23:17:01,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f88a83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:17:01, skipping insertion in model container [2019-10-13 23:17:01,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:17:01" (3/3) ... [2019-10-13 23:17:01,193 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2019-10-13 23:17:01,204 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:17:01,213 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:17:01,228 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:17:01,258 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:17:01,258 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:17:01,258 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:17:01,259 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:17:01,259 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:17:01,259 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:17:01,260 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:17:01,260 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:17:01,287 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2019-10-13 23:17:01,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:17:01,298 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:01,299 INFO L380 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] [2019-10-13 23:17:01,301 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:01,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:01,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1305827557, now seen corresponding path program 1 times [2019-10-13 23:17:01,319 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:01,320 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630792240] [2019-10-13 23:17:01,320 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,321 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,321 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:01,733 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630792240] [2019-10-13 23:17:01,734 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:01,738 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:17:01,738 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801651676] [2019-10-13 23:17:01,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:17:01,744 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:01,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:17:01,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:17:01,758 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2019-10-13 23:17:01,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:01,801 INFO L93 Difference]: Finished difference Result 263 states and 320 transitions. [2019-10-13 23:17:01,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:17:01,803 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:17:01,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:01,816 INFO L225 Difference]: With dead ends: 263 [2019-10-13 23:17:01,816 INFO L226 Difference]: Without dead ends: 132 [2019-10-13 23:17:01,821 INFO L600 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 [2019-10-13 23:17:01,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2019-10-13 23:17:01,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2019-10-13 23:17:01,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-10-13 23:17:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 154 transitions. [2019-10-13 23:17:01,882 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 154 transitions. Word has length 42 [2019-10-13 23:17:01,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:01,883 INFO L462 AbstractCegarLoop]: Abstraction has 132 states and 154 transitions. [2019-10-13 23:17:01,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:17:01,883 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 154 transitions. [2019-10-13 23:17:01,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:17:01,887 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:01,887 INFO L380 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] [2019-10-13 23:17:01,888 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:01,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:01,888 INFO L82 PathProgramCache]: Analyzing trace with hash -347093035, now seen corresponding path program 1 times [2019-10-13 23:17:01,889 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:01,889 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507614529] [2019-10-13 23:17:01,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,889 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:01,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:02,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:02,012 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507614529] [2019-10-13 23:17:02,013 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:02,013 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:02,013 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076599181] [2019-10-13 23:17:02,016 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:02,017 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:02,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:02,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:02,018 INFO L87 Difference]: Start difference. First operand 132 states and 154 transitions. Second operand 3 states. [2019-10-13 23:17:02,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:02,056 INFO L93 Difference]: Finished difference Result 211 states and 245 transitions. [2019-10-13 23:17:02,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:02,061 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:17:02,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:02,064 INFO L225 Difference]: With dead ends: 211 [2019-10-13 23:17:02,064 INFO L226 Difference]: Without dead ends: 124 [2019-10-13 23:17:02,066 INFO L600 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 [2019-10-13 23:17:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-10-13 23:17:02,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-10-13 23:17:02,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-10-13 23:17:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 143 transitions. [2019-10-13 23:17:02,100 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 143 transitions. Word has length 43 [2019-10-13 23:17:02,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:02,101 INFO L462 AbstractCegarLoop]: Abstraction has 124 states and 143 transitions. [2019-10-13 23:17:02,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 143 transitions. [2019-10-13 23:17:02,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 23:17:02,106 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:02,106 INFO L380 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] [2019-10-13 23:17:02,107 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:02,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:02,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1786678085, now seen corresponding path program 1 times [2019-10-13 23:17:02,107 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:02,108 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526335793] [2019-10-13 23:17:02,108 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,108 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:02,337 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526335793] [2019-10-13 23:17:02,342 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:02,343 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:17:02,343 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744089116] [2019-10-13 23:17:02,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:02,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:02,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:02,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:17:02,346 INFO L87 Difference]: Start difference. First operand 124 states and 143 transitions. Second operand 7 states. [2019-10-13 23:17:02,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:02,904 INFO L93 Difference]: Finished difference Result 373 states and 445 transitions. [2019-10-13 23:17:02,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:17:02,904 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2019-10-13 23:17:02,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:02,908 INFO L225 Difference]: With dead ends: 373 [2019-10-13 23:17:02,909 INFO L226 Difference]: Without dead ends: 271 [2019-10-13 23:17:02,910 INFO L600 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 [2019-10-13 23:17:02,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-10-13 23:17:02,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 259. [2019-10-13 23:17:02,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2019-10-13 23:17:02,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 308 transitions. [2019-10-13 23:17:02,946 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 308 transitions. Word has length 47 [2019-10-13 23:17:02,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:02,947 INFO L462 AbstractCegarLoop]: Abstraction has 259 states and 308 transitions. [2019-10-13 23:17:02,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 308 transitions. [2019-10-13 23:17:02,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-13 23:17:02,949 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:02,949 INFO L380 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] [2019-10-13 23:17:02,950 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:02,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:02,950 INFO L82 PathProgramCache]: Analyzing trace with hash 78965688, now seen corresponding path program 1 times [2019-10-13 23:17:02,951 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:02,951 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679132276] [2019-10-13 23:17:02,951 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,951 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:02,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:03,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:03,162 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679132276] [2019-10-13 23:17:03,162 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:03,163 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 23:17:03,163 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446109685] [2019-10-13 23:17:03,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 23:17:03,164 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:03,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 23:17:03,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:17:03,169 INFO L87 Difference]: Start difference. First operand 259 states and 308 transitions. Second operand 10 states. [2019-10-13 23:17:03,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:03,885 INFO L93 Difference]: Finished difference Result 931 states and 1154 transitions. [2019-10-13 23:17:03,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:17:03,886 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-13 23:17:03,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:03,894 INFO L225 Difference]: With dead ends: 931 [2019-10-13 23:17:03,894 INFO L226 Difference]: Without dead ends: 694 [2019-10-13 23:17:03,898 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:17:03,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2019-10-13 23:17:03,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 670. [2019-10-13 23:17:03,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2019-10-13 23:17:03,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 815 transitions. [2019-10-13 23:17:03,993 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 815 transitions. Word has length 51 [2019-10-13 23:17:03,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:03,994 INFO L462 AbstractCegarLoop]: Abstraction has 670 states and 815 transitions. [2019-10-13 23:17:03,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 23:17:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 815 transitions. [2019-10-13 23:17:04,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-13 23:17:04,002 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:04,002 INFO L380 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] [2019-10-13 23:17:04,003 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:04,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:04,003 INFO L82 PathProgramCache]: Analyzing trace with hash 519297942, now seen corresponding path program 1 times [2019-10-13 23:17:04,003 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:04,004 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831007831] [2019-10-13 23:17:04,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,005 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:04,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:04,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831007831] [2019-10-13 23:17:04,113 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:04,113 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 23:17:04,113 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604691939] [2019-10-13 23:17:04,114 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 23:17:04,114 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:04,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 23:17:04,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-13 23:17:04,116 INFO L87 Difference]: Start difference. First operand 670 states and 815 transitions. Second operand 4 states. [2019-10-13 23:17:04,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:04,502 INFO L93 Difference]: Finished difference Result 1606 states and 2125 transitions. [2019-10-13 23:17:04,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 23:17:04,502 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2019-10-13 23:17:04,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:04,509 INFO L225 Difference]: With dead ends: 1606 [2019-10-13 23:17:04,509 INFO L226 Difference]: Without dead ends: 958 [2019-10-13 23:17:04,512 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:17:04,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2019-10-13 23:17:04,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 825. [2019-10-13 23:17:04,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2019-10-13 23:17:04,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 982 transitions. [2019-10-13 23:17:04,580 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 982 transitions. Word has length 54 [2019-10-13 23:17:04,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:04,581 INFO L462 AbstractCegarLoop]: Abstraction has 825 states and 982 transitions. [2019-10-13 23:17:04,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 23:17:04,581 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 982 transitions. [2019-10-13 23:17:04,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-13 23:17:04,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:04,584 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:04,584 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:04,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:04,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1436947575, now seen corresponding path program 1 times [2019-10-13 23:17:04,585 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:04,585 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684902880] [2019-10-13 23:17:04,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,585 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:04,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:04,712 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-13 23:17:04,713 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684902880] [2019-10-13 23:17:04,713 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161182490] [2019-10-13 23:17:04,713 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 [2019-10-13 23:17:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:04,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-13 23:17:04,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:17:04,966 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:05,100 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-13 23:17:05,101 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 23:17:05,102 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-13 23:17:05,102 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920078149] [2019-10-13 23:17:05,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:17:05,103 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:05,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:17:05,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:17:05,104 INFO L87 Difference]: Start difference. First operand 825 states and 982 transitions. Second operand 7 states. [2019-10-13 23:17:05,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:05,489 INFO L93 Difference]: Finished difference Result 838 states and 998 transitions. [2019-10-13 23:17:05,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:17:05,489 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-10-13 23:17:05,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:05,496 INFO L225 Difference]: With dead ends: 838 [2019-10-13 23:17:05,496 INFO L226 Difference]: Without dead ends: 835 [2019-10-13 23:17:05,497 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-13 23:17:05,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2019-10-13 23:17:05,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 825. [2019-10-13 23:17:05,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 825 states. [2019-10-13 23:17:05,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 979 transitions. [2019-10-13 23:17:05,555 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 979 transitions. Word has length 79 [2019-10-13 23:17:05,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:05,555 INFO L462 AbstractCegarLoop]: Abstraction has 825 states and 979 transitions. [2019-10-13 23:17:05,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:17:05,555 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 979 transitions. [2019-10-13 23:17:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-13 23:17:05,559 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:05,559 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:05,770 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:05,771 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:05,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1521573520, now seen corresponding path program 1 times [2019-10-13 23:17:05,772 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:05,772 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178380124] [2019-10-13 23:17:05,772 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,773 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:05,841 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-10-13 23:17:05,842 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178380124] [2019-10-13 23:17:05,842 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:17:05,842 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:17:05,842 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508221171] [2019-10-13 23:17:05,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:05,843 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:05,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:05,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:17:05,844 INFO L87 Difference]: Start difference. First operand 825 states and 979 transitions. Second operand 3 states. [2019-10-13 23:17:05,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:05,918 INFO L93 Difference]: Finished difference Result 1309 states and 1558 transitions. [2019-10-13 23:17:05,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:05,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 106 [2019-10-13 23:17:05,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:05,922 INFO L225 Difference]: With dead ends: 1309 [2019-10-13 23:17:05,923 INFO L226 Difference]: Without dead ends: 506 [2019-10-13 23:17:05,926 INFO L600 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 [2019-10-13 23:17:05,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2019-10-13 23:17:05,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 491. [2019-10-13 23:17:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2019-10-13 23:17:05,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 571 transitions. [2019-10-13 23:17:05,957 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 571 transitions. Word has length 106 [2019-10-13 23:17:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:05,958 INFO L462 AbstractCegarLoop]: Abstraction has 491 states and 571 transitions. [2019-10-13 23:17:05,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:05,958 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 571 transitions. [2019-10-13 23:17:05,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-13 23:17:05,961 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:05,962 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 23:17:05,962 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:05,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:05,962 INFO L82 PathProgramCache]: Analyzing trace with hash -661595660, now seen corresponding path program 1 times [2019-10-13 23:17:05,963 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:05,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273090706] [2019-10-13 23:17:05,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:05,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 23:17:06,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273090706] [2019-10-13 23:17:06,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070021768] [2019-10-13 23:17:06,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:06,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-13 23:17:06,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:06,425 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:17:06,426 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:06,676 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-10-13 23:17:06,677 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:17:06,677 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 8 [2019-10-13 23:17:06,677 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956795042] [2019-10-13 23:17:06,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:17:06,678 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:17:06,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:17:06,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:17:06,679 INFO L87 Difference]: Start difference. First operand 491 states and 571 transitions. Second operand 3 states. [2019-10-13 23:17:06,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:17:06,759 INFO L93 Difference]: Finished difference Result 960 states and 1120 transitions. [2019-10-13 23:17:06,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:17:06,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2019-10-13 23:17:06,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:17:06,763 INFO L225 Difference]: With dead ends: 960 [2019-10-13 23:17:06,763 INFO L226 Difference]: Without dead ends: 491 [2019-10-13 23:17:06,765 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 258 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:17:06,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2019-10-13 23:17:06,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 481. [2019-10-13 23:17:06,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-10-13 23:17:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 529 transitions. [2019-10-13 23:17:06,793 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 529 transitions. Word has length 129 [2019-10-13 23:17:06,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:17:06,794 INFO L462 AbstractCegarLoop]: Abstraction has 481 states and 529 transitions. [2019-10-13 23:17:06,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:17:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 529 transitions. [2019-10-13 23:17:06,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-13 23:17:06,797 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:17:06,797 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-13 23:17:07,002 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:07,003 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:17:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:17:07,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1796754207, now seen corresponding path program 1 times [2019-10-13 23:17:07,004 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:17:07,004 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259150611] [2019-10-13 23:17:07,004 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,005 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:17:07,005 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:17:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:17:07,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259150611] [2019-10-13 23:17:07,227 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370925663] [2019-10-13 23:17:07,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:17:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:17:07,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 49 conjunts are in the unsatisfiable core [2019-10-13 23:17:07,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:17:07,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:17:07,625 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:17:08,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:08,117 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:08,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:08,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:17:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:17:08,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [342270774] [2019-10-13 23:17:08,281 INFO L162 IcfgInterpreter]: Started Sifa with 89 locations of interest [2019-10-13 23:17:08,281 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:17:08,289 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:17:08,298 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:17:08,299 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:17:17,785 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:17:19,421 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:17:19,558 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:19,682 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:19,817 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:17:20,215 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:20,579 WARN L191 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:20,822 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:21,051 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:21,421 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:17:21,586 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:21,805 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:21,938 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,058 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,182 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:17:22,193 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:17:22,497 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-13 23:17:22,498 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 542 for LOIs [2019-10-13 23:17:22,603 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:22,729 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:22,861 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,101 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:23,239 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,390 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:23,635 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:23,899 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 542 [2019-10-13 23:17:24,119 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:24,454 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:24,764 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:25,102 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:25,412 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:25,732 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,034 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,350 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,580 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 542 [2019-10-13 23:17:26,695 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:26,998 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,130 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,238 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,372 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,601 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:27,711 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,844 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:27,952 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,058 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,176 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:28,344 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:28,473 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:28,595 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:28,713 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:28,821 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,083 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,313 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:29,420 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:29,552 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:29,673 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:29,786 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:29,953 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 565 [2019-10-13 23:17:30,067 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,179 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,309 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,442 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,566 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,772 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:30,977 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 567 [2019-10-13 23:17:31,090 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,361 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,497 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,608 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,729 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2019-10-13 23:17:31,942 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:32,051 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,185 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,394 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:32,513 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,637 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,744 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,854 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:32,990 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:33,120 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:33,231 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:33,352 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:33,551 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:33,660 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:33,788 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:33,978 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 558 [2019-10-13 23:17:34,089 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:34,213 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:34,424 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 558 [2019-10-13 23:17:34,534 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-13 23:17:34,660 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:34,864 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 569 DAG size of output: 560 [2019-10-13 23:17:34,972 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:35,102 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:17:35,429 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:35,539 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,661 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:35,859 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:35,966 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,090 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,197 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,309 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,426 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,648 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:36,754 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:36,869 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,064 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:17:37,170 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,295 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,400 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,519 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,660 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:17:37,781 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:37,896 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:38,019 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:38,201 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:38,438 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:38,596 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:17:38,706 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560