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/elevator_spec1_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:09:18,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:09:18,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:09:18,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:09:18,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:09:18,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:09:18,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:09:18,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:09:18,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:09:18,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:09:18,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:09:18,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:09:18,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:09:18,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:09:18,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:09:18,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:09:18,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:09:18,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:09:18,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:09:18,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:09:18,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:09:18,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:09:18,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:09:18,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:09:18,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:09:18,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:09:18,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:09:18,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:09:18,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:09:18,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:09:18,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:09:18,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:09:18,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:09:18,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:09:18,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:09:18,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:09:18,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:09:18,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:09:18,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:09:18,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:09:18,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:09:18,518 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 [2019-10-07 14:09:18,551 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:09:18,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:09:18,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:09:18,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:09:18,554 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:09:18,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:09:18,554 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:09:18,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:09:18,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:09:18,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:09:18,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:09:18,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:09:18,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:09:18,556 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:09:18,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:09:18,556 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:09:18,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:09:18,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:09:18,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:09:18,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:09:18,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:09:18,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:09:18,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:09:18,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:09:18,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:09:18,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:09:18,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:09:18,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:09:18,559 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 [2019-10-07 14:09:18,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:09:18,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:09:18,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:09:18,885 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:09:18,885 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:09:18,886 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product26.cil.c [2019-10-07 14:09:18,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5498b5e95/32981753abfa47d7951e813fb5793318/FLAG980ae7ca1 [2019-10-07 14:09:19,628 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:09:19,629 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product26.cil.c [2019-10-07 14:09:19,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5498b5e95/32981753abfa47d7951e813fb5793318/FLAG980ae7ca1 [2019-10-07 14:09:19,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5498b5e95/32981753abfa47d7951e813fb5793318 [2019-10-07 14:09:19,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:09:19,901 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:09:19,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:09:19,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:09:19,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:09:19,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:09:19" (1/1) ... [2019-10-07 14:09:19,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b36d77d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:19, skipping insertion in model container [2019-10-07 14:09:19,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:09:19" (1/1) ... [2019-10-07 14:09:19,920 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:09:20,014 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:09:20,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:09:20,800 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:09:20,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:09:21,020 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:09:21,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21 WrapperNode [2019-10-07 14:09:21,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:09:21,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:09:21,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:09:21,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:09:21,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21" (1/1) ... [2019-10-07 14:09:21,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21" (1/1) ... [2019-10-07 14:09:21,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21" (1/1) ... [2019-10-07 14:09:21,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21" (1/1) ... [2019-10-07 14:09:21,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21" (1/1) ... [2019-10-07 14:09:21,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21" (1/1) ... [2019-10-07 14:09:21,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21" (1/1) ... [2019-10-07 14:09:21,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:09:21,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:09:21,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:09:21,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:09:21,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21" (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 [2019-10-07 14:09:21,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:09:21,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:09:21,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:09:21,318 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:09:21,318 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:09:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:09:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:09:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:09:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:09:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:09:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:09:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:09:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:09:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:09:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:09:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:09:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:09:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:09:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:09:21,328 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:09:21,328 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:09:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:09:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:09:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:09:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:09:21,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:09:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:09:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2019-10-07 14:09:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:09:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__empty [2019-10-07 14:09:21,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:09:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:09:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:09:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:09:21,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:09:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:09:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:09:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:09:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:09:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:09:21,332 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:09:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:09:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:09:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:09:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:09:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:09:21,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:09:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:09:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:09:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:09:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:09:21,334 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:09:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:09:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:09:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:09:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:09:21,335 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:09:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:09:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:09:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:09:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:09:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:09:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:09:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:09:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:09:21,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:09:21,338 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:09:21,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:09:21,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:09:21,339 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:09:21,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:09:21,339 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:09:21,339 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:09:21,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:09:21,341 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:09:21,341 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:09:21,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:09:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:09:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:09:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:09:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:09:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:09:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:09:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:09:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:09:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:09:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:09:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:09:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:09:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:09:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:09:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:09:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:09:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:09:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:09:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:09:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:09:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:09:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:09:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:09:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:09:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:09:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:09:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:09:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:09:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:09:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:09:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:09:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:09:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:09:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:09:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:09:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:09:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:09:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:09:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:09:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:09:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2019-10-07 14:09:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:09:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__empty [2019-10-07 14:09:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:09:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:09:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:09:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:09:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:09:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:09:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:09:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:09:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:09:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:09:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:09:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:09:21,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:09:21,358 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:09:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:09:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:09:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:09:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:09:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:09:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:09:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:09:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:09:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:09:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:09:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:09:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:09:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:09:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:09:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:09:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:09:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:09:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:09:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:09:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:09:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:09:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:09:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:09:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:09:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:09:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:09:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:09:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:09:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:09:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:09:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:09:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:09:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:09:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:09:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:09:26,371 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:09:26,371 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:09:26,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:09:26 BoogieIcfgContainer [2019-10-07 14:09:26,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:09:26,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:09:26,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:09:26,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:09:26,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:09:19" (1/3) ... [2019-10-07 14:09:26,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744c19ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:09:26, skipping insertion in model container [2019-10-07 14:09:26,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:21" (2/3) ... [2019-10-07 14:09:26,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744c19ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:09:26, skipping insertion in model container [2019-10-07 14:09:26,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:09:26" (3/3) ... [2019-10-07 14:09:26,380 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product26.cil.c [2019-10-07 14:09:26,390 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:09:26,399 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:09:26,411 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:09:26,444 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:09:26,444 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:09:26,444 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:09:26,445 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:09:26,445 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:09:26,445 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:09:26,445 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:09:26,445 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:09:26,478 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states. [2019-10-07 14:09:26,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-07 14:09:26,495 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:26,496 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:09:26,498 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:26,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:26,504 INFO L82 PathProgramCache]: Analyzing trace with hash -579989771, now seen corresponding path program 1 times [2019-10-07 14:09:26,513 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:26,514 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:26,514 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:26,514 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:27,340 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:09:27,341 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:27,341 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:27,342 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:09:27,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:09:27,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:09:27,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:09:27,365 INFO L87 Difference]: Start difference. First operand 565 states. Second operand 6 states. [2019-10-07 14:09:30,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:30,754 INFO L93 Difference]: Finished difference Result 1325 states and 2062 transitions. [2019-10-07 14:09:30,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:09:30,759 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2019-10-07 14:09:30,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:30,791 INFO L225 Difference]: With dead ends: 1325 [2019-10-07 14:09:30,791 INFO L226 Difference]: Without dead ends: 919 [2019-10-07 14:09:30,801 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:09:30,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2019-10-07 14:09:30,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 828. [2019-10-07 14:09:30,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 828 states. [2019-10-07 14:09:30,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1283 transitions. [2019-10-07 14:09:30,996 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1283 transitions. Word has length 97 [2019-10-07 14:09:30,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:30,998 INFO L462 AbstractCegarLoop]: Abstraction has 828 states and 1283 transitions. [2019-10-07 14:09:30,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:09:30,998 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1283 transitions. [2019-10-07 14:09:31,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-07 14:09:31,017 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:31,017 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:09:31,018 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:31,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:31,019 INFO L82 PathProgramCache]: Analyzing trace with hash -811356628, now seen corresponding path program 1 times [2019-10-07 14:09:31,019 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:31,019 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:31,019 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:31,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:31,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:31,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:09:31,532 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:31,532 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:31,533 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 14:09:31,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 14:09:31,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 14:09:31,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:09:31,537 INFO L87 Difference]: Start difference. First operand 828 states and 1283 transitions. Second operand 12 states. [2019-10-07 14:09:39,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:39,384 INFO L93 Difference]: Finished difference Result 2449 states and 3836 transitions. [2019-10-07 14:09:39,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-07 14:09:39,385 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 125 [2019-10-07 14:09:39,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:39,398 INFO L225 Difference]: With dead ends: 2449 [2019-10-07 14:09:39,399 INFO L226 Difference]: Without dead ends: 1674 [2019-10-07 14:09:39,405 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2019-10-07 14:09:39,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1674 states. [2019-10-07 14:09:39,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1674 to 1615. [2019-10-07 14:09:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1615 states. [2019-10-07 14:09:39,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2513 transitions. [2019-10-07 14:09:39,513 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2513 transitions. Word has length 125 [2019-10-07 14:09:39,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:39,514 INFO L462 AbstractCegarLoop]: Abstraction has 1615 states and 2513 transitions. [2019-10-07 14:09:39,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 14:09:39,514 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2513 transitions. [2019-10-07 14:09:39,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 14:09:39,518 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:39,519 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:09:39,519 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:39,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:39,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1211808752, now seen corresponding path program 1 times [2019-10-07 14:09:39,520 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:39,520 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:39,520 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:39,520 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:39,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:09:39,773 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:39,773 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:39,773 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:09:39,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:09:39,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:09:39,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:09:39,775 INFO L87 Difference]: Start difference. First operand 1615 states and 2513 transitions. Second operand 8 states. [2019-10-07 14:09:39,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:39,901 INFO L93 Difference]: Finished difference Result 3457 states and 5469 transitions. [2019-10-07 14:09:39,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:09:39,902 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 126 [2019-10-07 14:09:39,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:39,916 INFO L225 Difference]: With dead ends: 3457 [2019-10-07 14:09:39,917 INFO L226 Difference]: Without dead ends: 1897 [2019-10-07 14:09:39,925 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:09:39,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2019-10-07 14:09:40,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1639. [2019-10-07 14:09:40,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2019-10-07 14:09:40,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2537 transitions. [2019-10-07 14:09:40,030 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2537 transitions. Word has length 126 [2019-10-07 14:09:40,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:40,031 INFO L462 AbstractCegarLoop]: Abstraction has 1639 states and 2537 transitions. [2019-10-07 14:09:40,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:09:40,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2537 transitions. [2019-10-07 14:09:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 14:09:40,035 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:40,036 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:09:40,036 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:40,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:40,037 INFO L82 PathProgramCache]: Analyzing trace with hash -2048360334, now seen corresponding path program 1 times [2019-10-07 14:09:40,037 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:40,037 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:40,037 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:40,037 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:40,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:40,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:09:40,227 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:40,228 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:40,228 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:09:40,229 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:09:40,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:09:40,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:09:40,229 INFO L87 Difference]: Start difference. First operand 1639 states and 2537 transitions. Second operand 5 states. [2019-10-07 14:09:40,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:40,458 INFO L93 Difference]: Finished difference Result 3247 states and 5062 transitions. [2019-10-07 14:09:40,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:09:40,458 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2019-10-07 14:09:40,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:40,474 INFO L225 Difference]: With dead ends: 3247 [2019-10-07 14:09:40,474 INFO L226 Difference]: Without dead ends: 1663 [2019-10-07 14:09:40,485 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:09:40,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2019-10-07 14:09:40,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1655. [2019-10-07 14:09:40,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1655 states. [2019-10-07 14:09:40,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2557 transitions. [2019-10-07 14:09:40,604 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2557 transitions. Word has length 130 [2019-10-07 14:09:40,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:40,604 INFO L462 AbstractCegarLoop]: Abstraction has 1655 states and 2557 transitions. [2019-10-07 14:09:40,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:09:40,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2557 transitions. [2019-10-07 14:09:40,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-07 14:09:40,609 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:40,609 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:09:40,609 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:40,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:40,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1985703050, now seen corresponding path program 1 times [2019-10-07 14:09:40,610 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:40,610 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:40,610 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:40,611 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:40,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:40,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:09:40,834 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:40,835 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:40,835 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:09:40,835 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:09:40,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:09:40,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:09:40,836 INFO L87 Difference]: Start difference. First operand 1655 states and 2557 transitions. Second operand 6 states. [2019-10-07 14:09:44,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:44,726 INFO L93 Difference]: Finished difference Result 5531 states and 8605 transitions. [2019-10-07 14:09:44,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:09:44,726 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2019-10-07 14:09:44,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:44,758 INFO L225 Difference]: With dead ends: 5531 [2019-10-07 14:09:44,758 INFO L226 Difference]: Without dead ends: 3931 [2019-10-07 14:09:44,771 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:09:44,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3931 states. [2019-10-07 14:09:44,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3931 to 3897. [2019-10-07 14:09:44,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3897 states. [2019-10-07 14:09:45,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 5979 transitions. [2019-10-07 14:09:45,014 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 5979 transitions. Word has length 134 [2019-10-07 14:09:45,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:45,017 INFO L462 AbstractCegarLoop]: Abstraction has 3897 states and 5979 transitions. [2019-10-07 14:09:45,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:09:45,017 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 5979 transitions. [2019-10-07 14:09:45,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 14:09:45,021 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:45,021 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:09:45,023 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:45,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:45,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1929700843, now seen corresponding path program 1 times [2019-10-07 14:09:45,024 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:45,024 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:45,024 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:45,024 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:45,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-07 14:09:45,870 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:45,870 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:45,870 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:09:45,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:09:45,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:09:45,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:09:45,872 INFO L87 Difference]: Start difference. First operand 3897 states and 5979 transitions. Second operand 28 states. [2019-10-07 14:10:17,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:17,539 INFO L93 Difference]: Finished difference Result 15349 states and 25068 transitions. [2019-10-07 14:10:17,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2019-10-07 14:10:17,545 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 142 [2019-10-07 14:10:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:17,638 INFO L225 Difference]: With dead ends: 15349 [2019-10-07 14:10:17,639 INFO L226 Difference]: Without dead ends: 11508 [2019-10-07 14:10:17,668 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3925 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2074, Invalid=9268, Unknown=0, NotChecked=0, Total=11342 [2019-10-07 14:10:17,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11508 states. [2019-10-07 14:10:18,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11508 to 9244. [2019-10-07 14:10:18,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9244 states. [2019-10-07 14:10:18,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9244 states to 9244 states and 14578 transitions. [2019-10-07 14:10:18,372 INFO L78 Accepts]: Start accepts. Automaton has 9244 states and 14578 transitions. Word has length 142 [2019-10-07 14:10:18,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:18,375 INFO L462 AbstractCegarLoop]: Abstraction has 9244 states and 14578 transitions. [2019-10-07 14:10:18,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:10:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 9244 states and 14578 transitions. [2019-10-07 14:10:18,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 14:10:18,381 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:18,382 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:18,382 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:18,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:18,382 INFO L82 PathProgramCache]: Analyzing trace with hash -309114663, now seen corresponding path program 1 times [2019-10-07 14:10:18,383 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:18,383 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:18,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:18,383 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:18,737 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 14:10:18,738 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:18,738 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:18,738 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:10:18,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:10:18,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:10:18,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:10:18,741 INFO L87 Difference]: Start difference. First operand 9244 states and 14578 transitions. Second operand 6 states. [2019-10-07 14:10:19,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:19,550 INFO L93 Difference]: Finished difference Result 9383 states and 14854 transitions. [2019-10-07 14:10:19,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:10:19,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2019-10-07 14:10:19,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:19,608 INFO L225 Difference]: With dead ends: 9383 [2019-10-07 14:10:19,609 INFO L226 Difference]: Without dead ends: 9360 [2019-10-07 14:10:19,616 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:10:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9360 states. [2019-10-07 14:10:20,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9360 to 9264. [2019-10-07 14:10:20,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9264 states. [2019-10-07 14:10:20,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9264 states to 9264 states and 14598 transitions. [2019-10-07 14:10:20,166 INFO L78 Accepts]: Start accepts. Automaton has 9264 states and 14598 transitions. Word has length 143 [2019-10-07 14:10:20,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:20,167 INFO L462 AbstractCegarLoop]: Abstraction has 9264 states and 14598 transitions. [2019-10-07 14:10:20,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:10:20,167 INFO L276 IsEmpty]: Start isEmpty. Operand 9264 states and 14598 transitions. [2019-10-07 14:10:20,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-07 14:10:20,173 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:20,174 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:20,174 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:20,174 INFO L82 PathProgramCache]: Analyzing trace with hash 557057163, now seen corresponding path program 1 times [2019-10-07 14:10:20,175 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:20,175 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:20,175 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:20,175 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:20,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:20,408 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-07 14:10:20,408 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:20,408 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:20,409 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:10:20,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:10:20,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:10:20,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:10:20,411 INFO L87 Difference]: Start difference. First operand 9264 states and 14598 transitions. Second operand 9 states. [2019-10-07 14:10:21,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:21,387 INFO L93 Difference]: Finished difference Result 9934 states and 15626 transitions. [2019-10-07 14:10:21,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:10:21,388 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2019-10-07 14:10:21,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:21,447 INFO L225 Difference]: With dead ends: 9934 [2019-10-07 14:10:21,447 INFO L226 Difference]: Without dead ends: 9911 [2019-10-07 14:10:21,455 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:10:21,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9911 states. [2019-10-07 14:10:21,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9911 to 9670. [2019-10-07 14:10:21,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9670 states. [2019-10-07 14:10:22,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9670 states to 9670 states and 15236 transitions. [2019-10-07 14:10:22,017 INFO L78 Accepts]: Start accepts. Automaton has 9670 states and 15236 transitions. Word has length 148 [2019-10-07 14:10:22,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:22,017 INFO L462 AbstractCegarLoop]: Abstraction has 9670 states and 15236 transitions. [2019-10-07 14:10:22,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:10:22,018 INFO L276 IsEmpty]: Start isEmpty. Operand 9670 states and 15236 transitions. [2019-10-07 14:10:22,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2019-10-07 14:10:22,026 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:22,027 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:22,027 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:22,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1405943262, now seen corresponding path program 1 times [2019-10-07 14:10:22,028 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:22,028 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:22,028 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:22,029 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:10:22,459 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:22,459 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:22,459 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-07 14:10:22,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-07 14:10:22,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-07 14:10:22,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:10:22,467 INFO L87 Difference]: Start difference. First operand 9670 states and 15236 transitions. Second operand 13 states. [2019-10-07 14:10:38,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:38,809 INFO L93 Difference]: Finished difference Result 30660 states and 51542 transitions. [2019-10-07 14:10:38,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2019-10-07 14:10:38,809 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 163 [2019-10-07 14:10:38,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:38,953 INFO L225 Difference]: With dead ends: 30660 [2019-10-07 14:10:38,953 INFO L226 Difference]: Without dead ends: 20171 [2019-10-07 14:10:39,029 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1096 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=522, Invalid=3138, Unknown=0, NotChecked=0, Total=3660 [2019-10-07 14:10:39,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20171 states. [2019-10-07 14:10:41,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20171 to 19254. [2019-10-07 14:10:41,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19254 states. [2019-10-07 14:10:41,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19254 states to 19254 states and 30926 transitions. [2019-10-07 14:10:41,080 INFO L78 Accepts]: Start accepts. Automaton has 19254 states and 30926 transitions. Word has length 163 [2019-10-07 14:10:41,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:41,080 INFO L462 AbstractCegarLoop]: Abstraction has 19254 states and 30926 transitions. [2019-10-07 14:10:41,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-07 14:10:41,081 INFO L276 IsEmpty]: Start isEmpty. Operand 19254 states and 30926 transitions. [2019-10-07 14:10:41,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-07 14:10:41,089 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:41,089 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:41,089 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:41,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:41,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1958798297, now seen corresponding path program 1 times [2019-10-07 14:10:41,090 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:41,090 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:41,091 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:41,091 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:41,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:41,289 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:10:41,290 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:41,290 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:41,290 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:10:41,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:10:41,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:10:41,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:10:41,291 INFO L87 Difference]: Start difference. First operand 19254 states and 30926 transitions. Second operand 6 states. [2019-10-07 14:10:46,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:46,556 INFO L93 Difference]: Finished difference Result 54441 states and 90335 transitions. [2019-10-07 14:10:46,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:10:46,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2019-10-07 14:10:46,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:46,764 INFO L225 Difference]: With dead ends: 54441 [2019-10-07 14:10:46,765 INFO L226 Difference]: Without dead ends: 36499 [2019-10-07 14:10:46,842 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:10:46,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36499 states. [2019-10-07 14:10:48,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36499 to 34089. [2019-10-07 14:10:48,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34089 states. [2019-10-07 14:10:48,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34089 states to 34089 states and 54873 transitions. [2019-10-07 14:10:48,805 INFO L78 Accepts]: Start accepts. Automaton has 34089 states and 54873 transitions. Word has length 164 [2019-10-07 14:10:48,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:48,806 INFO L462 AbstractCegarLoop]: Abstraction has 34089 states and 54873 transitions. [2019-10-07 14:10:48,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:10:48,807 INFO L276 IsEmpty]: Start isEmpty. Operand 34089 states and 54873 transitions. [2019-10-07 14:10:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2019-10-07 14:10:48,814 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:48,814 INFO L385 BasicCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:48,815 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:48,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:48,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1016006448, now seen corresponding path program 1 times [2019-10-07 14:10:48,815 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:48,815 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:48,816 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:48,816 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:48,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:49,132 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:10:49,132 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:49,132 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:10:49,133 INFO L95 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 [2019-10-07 14:10:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:49,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 3544 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:10:49,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:10:49,931 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:10:49,931 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:10:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-07 14:10:50,573 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:10:50,605 INFO L162 IcfgInterpreter]: Started Sifa with 149 locations of interest [2019-10-07 14:10:50,605 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:10:50,612 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:10:50,620 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:10:50,621 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:11:40,704 WARN L191 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 775 [2019-10-07 14:11:45,899 WARN L191 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 430 DAG size of output: 347 [2019-10-07 14:11:46,312 WARN L191 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2019-10-07 14:11:46,718 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2019-10-07 14:11:47,262 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2019-10-07 14:11:47,996 WARN L191 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:11:48,536 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:11:49,079 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:11:49,664 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:11:50,721 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 1062 DAG size of output: 1060 [2019-10-07 14:11:51,251 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:11:51,816 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:11:52,320 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:11:52,815 WARN L191 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:11:53,392 WARN L191 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:11:53,412 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 397 for LOIs [2019-10-07 14:11:53,639 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 743 [2019-10-07 14:11:53,756 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 743 [2019-10-07 14:11:54,173 WARN L191 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 935 [2019-10-07 14:11:54,174 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1108 for LOIs [2019-10-07 14:11:54,671 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:11:55,172 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:11:55,312 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:56,149 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:56,648 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:11:57,147 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:11:57,326 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:58,169 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:58,761 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:11:59,257 WARN L191 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:11:59,398 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:00,247 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:01,134 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 1286 DAG size of output: 1108 [2019-10-07 14:12:01,628 WARN L191 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:01,944 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:02,932 WARN L191 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:03,433 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:03,923 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:04,058 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:04,917 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:05,410 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:05,904 WARN L191 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:06,085 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:06,921 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:07,434 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:07,930 WARN L191 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:08,063 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:08,902 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:09,399 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:09,892 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:10,024 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:10,873 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:11,363 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:11,853 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:11,988 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:12,844 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:13,336 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:13,822 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:13,955 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:14,809 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:15,301 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:15,801 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:15,934 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:16,774 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:17,289 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:17,786 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:17,919 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:18,767 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:19,265 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:19,781 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 1108 [2019-10-07 14:12:19,921 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:20,770 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:21,669 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:22,533 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:22,696 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:23,543 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:25,079 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:12:25,935 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:26,086 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:26,941 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:27,789 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:28,636 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:28,769 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:29,614 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:30,487 WARN L191 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:12:31,324 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:12:31,463 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:12:32,298 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:12:33,967 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:12:34,816 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:12:34,957 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:12:35,803 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:12:37,233 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:12:38,071 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:12:38,205 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:12:39,066 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:12:39,936 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1293 [2019-10-07 14:12:40,816 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 1293 [2019-10-07 14:12:40,955 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:12:41,815 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1293 [2019-10-07 14:12:42,667 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:43,543 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:43,691 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:12:44,546 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:46,456 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:47,309 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:47,447 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:12:48,301 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:49,174 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:50,045 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:50,363 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:12:51,290 WARN L191 SmtUtils]: Spent 924.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:52,167 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:53,029 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:53,166 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:12:54,019 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:12:55,949 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:12:56,796 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:57,001 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:12:57,849 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:12:59,380 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:13:00,219 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:00,359 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:01,203 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:02,054 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:02,895 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:03,027 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:03,865 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:05,335 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:13:06,195 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:13:06,337 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:13:07,185 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:13:08,058 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:13:08,900 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:13:09,042 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:13:09,886 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:13:11,337 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:13:12,187 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:13:12,321 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:13:13,165 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:13:14,032 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1293 [2019-10-07 14:13:14,893 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1293 [2019-10-07 14:13:15,038 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:13:15,900 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1293 [2019-10-07 14:13:16,757 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:13:17,614 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:13:17,758 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:13:18,609 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1295 [2019-10-07 14:13:20,153 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:13:21,001 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:21,154 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:22,003 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:23,557 WARN L191 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:13:24,397 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:24,537 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:25,378 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:26,218 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:27,063 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:27,200 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:28,055 WARN L191 SmtUtils]: Spent 852.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:29,655 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:13:30,505 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:30,643 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:31,482 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:32,986 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:13:33,844 WARN L191 SmtUtils]: Spent 854.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:33,996 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:34,834 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:35,671 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:36,517 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:36,651 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:37,493 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:38,989 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:13:39,838 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:13:39,980 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:13:40,828 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:13:42,358 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:13:43,201 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:13:43,364 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:13:44,202 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:13:45,738 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:13:46,588 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:46,732 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:47,592 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:49,109 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:13:49,949 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:50,088 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:50,934 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:51,774 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:52,641 WARN L191 SmtUtils]: Spent 863.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:52,772 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:13:53,601 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:13:55,091 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:13:55,939 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:13:56,081 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:13:56,917 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:13:58,358 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:13:59,206 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:13:59,345 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:00,198 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:01,038 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:14:01,887 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:14:02,021 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:02,857 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:04,363 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1295 DAG size of output: 1286 [2019-10-07 14:14:05,211 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:14:05,366 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:06,210 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:07,736 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:14:08,577 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:08,717 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:14:09,558 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:11,077 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:14:11,925 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:12,064 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:14:12,912 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:13,756 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:14,594 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:14,731 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:14:15,571 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:16,441 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:17,297 WARN L191 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:17,437 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:18,288 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:19,740 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:14:20,581 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:14:20,720 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:21,569 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:23,021 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:14:23,874 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:14:24,011 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:24,873 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:26,324 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:14:27,194 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:14:27,334 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:28,195 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:29,636 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1297 DAG size of output: 1288 [2019-10-07 14:14:30,487 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:30,627 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:31,495 WARN L191 SmtUtils]: Spent 866.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:14:32,974 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1297 DAG size of output: 1288 [2019-10-07 14:14:33,824 WARN L191 SmtUtils]: Spent 847.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:33,963 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:34,816 WARN L191 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:14:36,297 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:14:37,180 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:37,321 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:38,183 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:14:39,743 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:14:40,587 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:40,729 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:14:41,572 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:43,105 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:14:43,950 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:44,086 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:14:44,927 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:46,639 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:14:47,484 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:47,630 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:14:48,489 WARN L191 SmtUtils]: Spent 858.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:50,022 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:14:50,871 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:51,022 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:14:51,864 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:52,713 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:53,556 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:53,689 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:14:54,531 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:14:56,212 WARN L191 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:14:57,056 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:14:57,194 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:14:58,045 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:58,907 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:59,767 WARN L191 SmtUtils]: Spent 857.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:14:59,906 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:15:00,749 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:15:02,230 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:15:03,083 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:15:03,219 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:15:04,070 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:15:05,589 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1295 DAG size of output: 1288 [2019-10-07 14:15:06,451 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:15:06,603 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:15:07,451 WARN L191 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:15:08,990 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1297 DAG size of output: 1290 [2019-10-07 14:15:09,848 WARN L191 SmtUtils]: Spent 855.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:15:09,990 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:15:10,841 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:15:10,847 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1136 for LOIs [2019-10-07 14:15:11,389 WARN L191 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:15:11,924 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:15:12,065 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:15:12,898 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:15:13,492 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:15:14,056 WARN L191 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:15:14,191 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:15:15,036 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:15:16,082 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1146 [2019-10-07 14:15:16,646 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:15:16,784 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:15:17,636 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:15:18,214 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:15:18,774 WARN L191 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:15:18,914 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:15:19,762 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:15:20,323 WARN L191 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:15:20,887 WARN L191 SmtUtils]: Spent 561.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:15:21,021 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:15:21,866 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:15:22,428 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:15:23,004 WARN L191 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:15:23,139 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:15:23,985 WARN L191 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:15:24,266 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:15:24,268 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:15:24,274 INFO L168 Benchmark]: Toolchain (without parser) took 364373.10 ms. Allocated memory was 139.5 MB in the beginning and 3.0 GB in the end (delta: 2.9 GB). Free memory was 101.6 MB in the beginning and 381.1 MB in the end (delta: -279.5 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2019-10-07 14:15:24,274 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:15:24,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1118.31 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 144.1 MB in the end (delta: -42.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:15:24,275 INFO L168 Benchmark]: Boogie Preprocessor took 196.66 ms. Allocated memory is still 203.4 MB. Free memory was 144.1 MB in the beginning and 134.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:15:24,275 INFO L168 Benchmark]: RCFGBuilder took 5153.74 ms. Allocated memory was 203.4 MB in the beginning and 298.8 MB in the end (delta: 95.4 MB). Free memory was 134.5 MB in the beginning and 198.7 MB in the end (delta: -64.2 MB). Peak memory consumption was 150.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:15:24,275 INFO L168 Benchmark]: TraceAbstraction took 357898.13 ms. Allocated memory was 298.8 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 198.7 MB in the beginning and 381.1 MB in the end (delta: -182.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2019-10-07 14:15:24,277 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1118.31 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 101.4 MB in the beginning and 144.1 MB in the end (delta: -42.7 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 196.66 ms. Allocated memory is still 203.4 MB. Free memory was 144.1 MB in the beginning and 134.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5153.74 ms. Allocated memory was 203.4 MB in the beginning and 298.8 MB in the end (delta: 95.4 MB). Free memory was 134.5 MB in the beginning and 198.7 MB in the end (delta: -64.2 MB). Peak memory consumption was 150.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 357898.13 ms. Allocated memory was 298.8 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 198.7 MB in the beginning and 381.1 MB in the end (delta: -182.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...