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_spec9_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:09:53,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:09:53,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:09:53,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:09:53,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:09:53,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:09:53,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:09:53,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:09:53,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:09:53,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:09:53,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:09:53,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:09:53,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:09:53,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:09:53,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:09:53,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:09:53,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:09:53,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:09:53,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:09:53,512 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:09:53,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:09:53,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:09:53,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:09:53,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:09:53,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:09:53,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:09:53,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:09:53,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:09:53,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:09:53,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:09:53,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:09:53,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:09:53,525 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:09:53,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:09:53,527 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:09:53,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:09:53,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:09:53,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:09:53,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:09:53,529 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:09:53,530 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:09:53,531 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 [2019-10-15 03:09:53,546 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:09:53,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:09:53,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:09:53,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:09:53,548 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:09:53,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:09:53,549 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:09:53,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:09:53,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:09:53,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:09:53,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:09:53,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:09:53,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:09:53,550 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:09:53,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:09:53,551 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:09:53,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:09:53,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:09:53,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:09:53,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:09:53,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:09:53,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:09:53,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:09:53,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:09:53,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:09:53,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:09:53,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:09:53,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:09:53,554 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 [2019-10-15 03:09:53,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:09:53,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:09:53,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:09:53,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:09:53,937 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:09:53,937 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product25.cil.c [2019-10-15 03:09:54,031 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b9791e4/4438100ef6d84cb9b604064773c71784/FLAG3dc286ebb [2019-10-15 03:09:54,736 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:09:54,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product25.cil.c [2019-10-15 03:09:54,765 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b9791e4/4438100ef6d84cb9b604064773c71784/FLAG3dc286ebb [2019-10-15 03:09:54,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92b9791e4/4438100ef6d84cb9b604064773c71784 [2019-10-15 03:09:54,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:09:54,940 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:09:54,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:09:54,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:09:54,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:09:54,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:54" (1/1) ... [2019-10-15 03:09:54,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1763af5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:54, skipping insertion in model container [2019-10-15 03:09:54,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:09:54" (1/1) ... [2019-10-15 03:09:54,963 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:09:55,098 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:09:56,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:09:56,074 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:09:56,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:09:56,316 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:09:56,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56 WrapperNode [2019-10-15 03:09:56,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:09:56,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:09:56,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:09:56,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:09:56,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56" (1/1) ... [2019-10-15 03:09:56,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56" (1/1) ... [2019-10-15 03:09:56,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56" (1/1) ... [2019-10-15 03:09:56,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56" (1/1) ... [2019-10-15 03:09:56,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56" (1/1) ... [2019-10-15 03:09:56,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56" (1/1) ... [2019-10-15 03:09:56,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56" (1/1) ... [2019-10-15 03:09:56,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:09:56,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:09:56,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:09:56,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:09:56,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56" (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 [2019-10-15 03:09:56,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:09:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:09:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:09:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-15 03:09:56,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-15 03:09:56,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-15 03:09:56,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-15 03:09:56,692 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:09:56,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:09:56,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:09:56,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:09:56,694 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:09:56,694 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:09:56,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:09:56,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:09:56,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:09:56,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:09:56,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:09:56,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:09:56,698 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:09:56,699 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:09:56,699 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:09:56,699 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:09:56,699 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:09:56,700 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:09:56,700 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:09:56,700 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:09:56,700 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:09:56,701 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:09:56,701 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:09:56,701 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:09:56,702 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:09:56,702 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:09:56,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:09:56,702 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:09:56,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:09:56,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:09:56,703 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:09:56,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:09:56,703 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:09:56,703 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:09:56,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:09:56,704 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:09:56,704 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:09:56,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:09:56,704 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:09:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:09:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:09:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:09:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:09:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:09:56,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:09:56,706 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-15 03:09:56,706 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:09:56,706 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-15 03:09:56,706 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-15 03:09:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:09:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:09:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:09:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:09:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:09:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:09:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:09:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:09:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:09:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:09:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:09:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:09:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:09:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:09:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:09:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:09:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:09:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:09:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:09:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:09:56,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:09:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:09:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:09:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:09:56,713 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:09:56,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-15 03:09:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-15 03:09:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-15 03:09:56,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-15 03:09:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:09:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:09:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:09:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:09:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:09:56,716 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:09:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:09:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:09:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:09:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:09:56,717 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:09:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:09:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:09:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:09:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:09:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:09:56,718 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:09:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:09:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:09:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:09:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:09:56,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:09:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:09:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:09:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:09:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:09:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:09:56,720 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:09:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:09:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:09:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:09:56,721 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:09:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:09:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:09:56,722 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:09:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:09:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:09:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:09:56,723 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:09:56,724 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:09:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:09:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:09:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:09:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:09:56,725 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:09:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:09:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:09:56,726 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:09:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:09:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:09:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:09:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:09:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:09:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:09:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:09:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:09:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:09:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:09:56,734 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:09:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:09:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:09:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:09:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:09:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-15 03:09:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-15 03:09:56,742 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-15 03:09:56,742 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:09:56,742 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:09:56,743 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:09:56,743 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:09:56,744 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:09:56,744 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:09:56,744 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:09:56,744 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:09:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:09:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:09:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:09:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:09:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:09:56,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:10:03,187 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:10:03,187 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:10:03,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:10:03 BoogieIcfgContainer [2019-10-15 03:10:03,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:10:03,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:10:03,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:10:03,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:10:03,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:09:54" (1/3) ... [2019-10-15 03:10:03,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56233346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:10:03, skipping insertion in model container [2019-10-15 03:10:03,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:09:56" (2/3) ... [2019-10-15 03:10:03,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56233346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:10:03, skipping insertion in model container [2019-10-15 03:10:03,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:10:03" (3/3) ... [2019-10-15 03:10:03,199 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product25.cil.c [2019-10-15 03:10:03,210 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:10:03,221 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:10:03,234 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:10:03,267 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:10:03,267 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:10:03,267 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:10:03,268 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:10:03,268 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:10:03,268 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:10:03,268 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:10:03,268 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:10:03,303 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states. [2019-10-15 03:10:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-15 03:10:03,324 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:03,325 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:03,328 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:03,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:03,335 INFO L82 PathProgramCache]: Analyzing trace with hash 893347726, now seen corresponding path program 1 times [2019-10-15 03:10:03,345 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:03,345 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891479602] [2019-10-15 03:10:03,346 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:03,346 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:03,346 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:04,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:04,139 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891479602] [2019-10-15 03:10:04,141 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:04,142 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:10:04,142 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391640723] [2019-10-15 03:10:04,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:10:04,153 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:04,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:10:04,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:10:04,172 INFO L87 Difference]: Start difference. First operand 540 states. Second operand 8 states. [2019-10-15 03:10:04,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:04,461 INFO L93 Difference]: Finished difference Result 832 states and 1275 transitions. [2019-10-15 03:10:04,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:10:04,465 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-10-15 03:10:04,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:04,513 INFO L225 Difference]: With dead ends: 832 [2019-10-15 03:10:04,514 INFO L226 Difference]: Without dead ends: 448 [2019-10-15 03:10:04,528 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:10:04,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-10-15 03:10:04,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 413. [2019-10-15 03:10:04,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-15 03:10:04,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 612 transitions. [2019-10-15 03:10:04,663 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 612 transitions. Word has length 92 [2019-10-15 03:10:04,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:04,664 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 612 transitions. [2019-10-15 03:10:04,664 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:10:04,665 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 612 transitions. [2019-10-15 03:10:04,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-15 03:10:04,682 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:04,682 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:04,683 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:04,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:04,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1609509534, now seen corresponding path program 1 times [2019-10-15 03:10:04,684 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:04,684 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061526000] [2019-10-15 03:10:04,684 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:04,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:04,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:04,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:05,124 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061526000] [2019-10-15 03:10:05,124 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:05,125 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:10:05,125 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220498207] [2019-10-15 03:10:05,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:10:05,137 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:05,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:10:05,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:10:05,138 INFO L87 Difference]: Start difference. First operand 413 states and 612 transitions. Second operand 7 states. [2019-10-15 03:10:10,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:10,107 INFO L93 Difference]: Finished difference Result 1270 states and 1945 transitions. [2019-10-15 03:10:10,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-15 03:10:10,111 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-10-15 03:10:10,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:10,143 INFO L225 Difference]: With dead ends: 1270 [2019-10-15 03:10:10,143 INFO L226 Difference]: Without dead ends: 899 [2019-10-15 03:10:10,147 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-10-15 03:10:10,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2019-10-15 03:10:10,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 872. [2019-10-15 03:10:10,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 872 states. [2019-10-15 03:10:10,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1339 transitions. [2019-10-15 03:10:10,336 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1339 transitions. Word has length 97 [2019-10-15 03:10:10,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:10,336 INFO L462 AbstractCegarLoop]: Abstraction has 872 states and 1339 transitions. [2019-10-15 03:10:10,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:10:10,337 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1339 transitions. [2019-10-15 03:10:10,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-15 03:10:10,340 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:10,340 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:10,341 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:10,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:10,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1458529294, now seen corresponding path program 1 times [2019-10-15 03:10:10,342 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:10,342 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123991574] [2019-10-15 03:10:10,342 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:10,342 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:10,342 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:10,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123991574] [2019-10-15 03:10:10,551 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:10,551 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:10:10,551 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914842164] [2019-10-15 03:10:10,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:10:10,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:10,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:10:10,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:10:10,552 INFO L87 Difference]: Start difference. First operand 872 states and 1339 transitions. Second operand 5 states. [2019-10-15 03:10:10,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:10,677 INFO L93 Difference]: Finished difference Result 1380 states and 2133 transitions. [2019-10-15 03:10:10,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:10:10,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-10-15 03:10:10,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:10,685 INFO L225 Difference]: With dead ends: 1380 [2019-10-15 03:10:10,685 INFO L226 Difference]: Without dead ends: 894 [2019-10-15 03:10:10,688 INFO L600 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 [2019-10-15 03:10:10,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2019-10-15 03:10:10,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 884. [2019-10-15 03:10:10,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2019-10-15 03:10:10,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1354 transitions. [2019-10-15 03:10:10,750 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1354 transitions. Word has length 101 [2019-10-15 03:10:10,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:10,751 INFO L462 AbstractCegarLoop]: Abstraction has 884 states and 1354 transitions. [2019-10-15 03:10:10,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:10:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1354 transitions. [2019-10-15 03:10:10,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-15 03:10:10,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:10,755 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:10,755 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:10,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:10,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1482107146, now seen corresponding path program 1 times [2019-10-15 03:10:10,756 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:10,756 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404501143] [2019-10-15 03:10:10,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:10,757 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:10,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:11,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:11,336 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404501143] [2019-10-15 03:10:11,336 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:11,337 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:10:11,337 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336238020] [2019-10-15 03:10:11,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:10:11,338 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:11,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:10:11,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:10:11,338 INFO L87 Difference]: Start difference. First operand 884 states and 1354 transitions. Second operand 8 states. [2019-10-15 03:10:17,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:17,022 INFO L93 Difference]: Finished difference Result 1873 states and 2875 transitions. [2019-10-15 03:10:17,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:10:17,023 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2019-10-15 03:10:17,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:17,037 INFO L225 Difference]: With dead ends: 1873 [2019-10-15 03:10:17,037 INFO L226 Difference]: Without dead ends: 1279 [2019-10-15 03:10:17,042 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:10:17,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2019-10-15 03:10:17,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1229. [2019-10-15 03:10:17,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1229 states. [2019-10-15 03:10:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1839 transitions. [2019-10-15 03:10:17,157 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1839 transitions. Word has length 105 [2019-10-15 03:10:17,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:17,158 INFO L462 AbstractCegarLoop]: Abstraction has 1229 states and 1839 transitions. [2019-10-15 03:10:17,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:10:17,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1839 transitions. [2019-10-15 03:10:17,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-15 03:10:17,163 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:17,164 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:17,164 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:17,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:17,165 INFO L82 PathProgramCache]: Analyzing trace with hash -258804804, now seen corresponding path program 1 times [2019-10-15 03:10:17,165 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:17,166 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709972910] [2019-10-15 03:10:17,166 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:17,166 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:17,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:17,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:10:17,352 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709972910] [2019-10-15 03:10:17,352 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:17,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:10:17,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978020949] [2019-10-15 03:10:17,353 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:10:17,354 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:17,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:10:17,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:10:17,355 INFO L87 Difference]: Start difference. First operand 1229 states and 1839 transitions. Second operand 7 states. [2019-10-15 03:10:17,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:17,579 INFO L93 Difference]: Finished difference Result 2312 states and 3548 transitions. [2019-10-15 03:10:17,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:10:17,579 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2019-10-15 03:10:17,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:17,590 INFO L225 Difference]: With dead ends: 2312 [2019-10-15 03:10:17,591 INFO L226 Difference]: Without dead ends: 1229 [2019-10-15 03:10:17,597 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:10:17,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2019-10-15 03:10:17,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2019-10-15 03:10:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1229 states. [2019-10-15 03:10:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1807 transitions. [2019-10-15 03:10:17,698 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1807 transitions. Word has length 108 [2019-10-15 03:10:17,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:17,702 INFO L462 AbstractCegarLoop]: Abstraction has 1229 states and 1807 transitions. [2019-10-15 03:10:17,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:10:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1807 transitions. [2019-10-15 03:10:17,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-15 03:10:17,708 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:17,708 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:10:17,708 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:17,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:17,709 INFO L82 PathProgramCache]: Analyzing trace with hash -602794650, now seen corresponding path program 1 times [2019-10-15 03:10:17,709 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:17,709 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772970233] [2019-10-15 03:10:17,710 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:17,710 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:17,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:10:17,950 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772970233] [2019-10-15 03:10:17,951 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:17,953 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:10:17,953 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371950659] [2019-10-15 03:10:17,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:10:17,954 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:17,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:10:17,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:10:17,955 INFO L87 Difference]: Start difference. First operand 1229 states and 1807 transitions. Second operand 7 states. [2019-10-15 03:10:22,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:22,700 INFO L93 Difference]: Finished difference Result 2181 states and 3218 transitions. [2019-10-15 03:10:22,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:10:22,702 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2019-10-15 03:10:22,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:22,712 INFO L225 Difference]: With dead ends: 2181 [2019-10-15 03:10:22,713 INFO L226 Difference]: Without dead ends: 1299 [2019-10-15 03:10:22,717 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:10:22,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2019-10-15 03:10:22,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1256. [2019-10-15 03:10:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2019-10-15 03:10:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1841 transitions. [2019-10-15 03:10:22,788 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1841 transitions. Word has length 110 [2019-10-15 03:10:22,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:22,788 INFO L462 AbstractCegarLoop]: Abstraction has 1256 states and 1841 transitions. [2019-10-15 03:10:22,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:10:22,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1841 transitions. [2019-10-15 03:10:22,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 03:10:22,793 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:22,794 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:10:22,794 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:22,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:22,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1548781473, now seen corresponding path program 1 times [2019-10-15 03:10:22,795 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:22,795 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679692751] [2019-10-15 03:10:22,795 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:22,796 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:22,796 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 03:10:22,991 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679692751] [2019-10-15 03:10:22,991 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:22,992 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:22,992 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023160543] [2019-10-15 03:10:22,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:22,993 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:22,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:22,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:22,993 INFO L87 Difference]: Start difference. First operand 1256 states and 1841 transitions. Second operand 3 states. [2019-10-15 03:10:23,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:23,254 INFO L93 Difference]: Finished difference Result 3626 states and 5399 transitions. [2019-10-15 03:10:23,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:23,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2019-10-15 03:10:23,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:23,281 INFO L225 Difference]: With dead ends: 3626 [2019-10-15 03:10:23,281 INFO L226 Difference]: Without dead ends: 2412 [2019-10-15 03:10:23,291 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:23,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2019-10-15 03:10:23,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2365. [2019-10-15 03:10:23,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2365 states. [2019-10-15 03:10:23,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 3515 transitions. [2019-10-15 03:10:23,475 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 3515 transitions. Word has length 114 [2019-10-15 03:10:23,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:23,480 INFO L462 AbstractCegarLoop]: Abstraction has 2365 states and 3515 transitions. [2019-10-15 03:10:23,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:23,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 3515 transitions. [2019-10-15 03:10:23,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-15 03:10:23,486 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:23,487 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:10:23,487 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:23,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:23,488 INFO L82 PathProgramCache]: Analyzing trace with hash 766311703, now seen corresponding path program 1 times [2019-10-15 03:10:23,488 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:23,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095158567] [2019-10-15 03:10:23,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:23,489 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:23,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:23,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:23,720 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 03:10:23,721 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095158567] [2019-10-15 03:10:23,721 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:23,721 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:23,722 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546308642] [2019-10-15 03:10:23,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:23,724 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:23,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:23,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:23,725 INFO L87 Difference]: Start difference. First operand 2365 states and 3515 transitions. Second operand 3 states. [2019-10-15 03:10:23,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:23,978 INFO L93 Difference]: Finished difference Result 6954 states and 10490 transitions. [2019-10-15 03:10:23,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:23,981 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2019-10-15 03:10:23,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:24,030 INFO L225 Difference]: With dead ends: 6954 [2019-10-15 03:10:24,031 INFO L226 Difference]: Without dead ends: 4632 [2019-10-15 03:10:24,050 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:24,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2019-10-15 03:10:24,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4584. [2019-10-15 03:10:24,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4584 states. [2019-10-15 03:10:24,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 6902 transitions. [2019-10-15 03:10:24,370 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 6902 transitions. Word has length 115 [2019-10-15 03:10:24,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:24,371 INFO L462 AbstractCegarLoop]: Abstraction has 4584 states and 6902 transitions. [2019-10-15 03:10:24,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:24,371 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 6902 transitions. [2019-10-15 03:10:24,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-15 03:10:24,374 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:24,374 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:10:24,375 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:24,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:24,378 INFO L82 PathProgramCache]: Analyzing trace with hash -365044715, now seen corresponding path program 1 times [2019-10-15 03:10:24,379 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:24,379 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240658606] [2019-10-15 03:10:24,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:24,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:24,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:10:24,547 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240658606] [2019-10-15 03:10:24,548 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:24,548 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:24,549 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424518876] [2019-10-15 03:10:24,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:24,550 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:24,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:24,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:24,550 INFO L87 Difference]: Start difference. First operand 4584 states and 6902 transitions. Second operand 3 states. [2019-10-15 03:10:24,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:24,903 INFO L93 Difference]: Finished difference Result 13611 states and 20872 transitions. [2019-10-15 03:10:24,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:24,904 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-15 03:10:24,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:25,000 INFO L225 Difference]: With dead ends: 13611 [2019-10-15 03:10:25,000 INFO L226 Difference]: Without dead ends: 9072 [2019-10-15 03:10:25,178 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:25,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9072 states. [2019-10-15 03:10:25,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9072 to 9023. [2019-10-15 03:10:25,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9023 states. [2019-10-15 03:10:25,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9023 states to 9023 states and 13810 transitions. [2019-10-15 03:10:25,763 INFO L78 Accepts]: Start accepts. Automaton has 9023 states and 13810 transitions. Word has length 119 [2019-10-15 03:10:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:25,764 INFO L462 AbstractCegarLoop]: Abstraction has 9023 states and 13810 transitions. [2019-10-15 03:10:25,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:25,764 INFO L276 IsEmpty]: Start isEmpty. Operand 9023 states and 13810 transitions. [2019-10-15 03:10:25,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-15 03:10:25,768 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:25,768 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:10:25,769 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:25,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:25,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1567249831, now seen corresponding path program 1 times [2019-10-15 03:10:25,769 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:25,770 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844586232] [2019-10-15 03:10:25,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:25,770 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:25,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:10:26,011 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844586232] [2019-10-15 03:10:26,013 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:26,014 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:26,014 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381172] [2019-10-15 03:10:26,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:26,021 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:26,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:26,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:26,022 INFO L87 Difference]: Start difference. First operand 9023 states and 13810 transitions. Second operand 3 states. [2019-10-15 03:10:27,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:27,769 INFO L93 Difference]: Finished difference Result 26926 states and 42329 transitions. [2019-10-15 03:10:27,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:27,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-15 03:10:27,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:27,953 INFO L225 Difference]: With dead ends: 26926 [2019-10-15 03:10:27,954 INFO L226 Difference]: Without dead ends: 17952 [2019-10-15 03:10:28,018 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:28,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17952 states. [2019-10-15 03:10:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17952 to 17902. [2019-10-15 03:10:29,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17902 states. [2019-10-15 03:10:29,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17902 states to 17902 states and 28102 transitions. [2019-10-15 03:10:29,239 INFO L78 Accepts]: Start accepts. Automaton has 17902 states and 28102 transitions. Word has length 120 [2019-10-15 03:10:29,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:10:29,239 INFO L462 AbstractCegarLoop]: Abstraction has 17902 states and 28102 transitions. [2019-10-15 03:10:29,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:10:29,240 INFO L276 IsEmpty]: Start isEmpty. Operand 17902 states and 28102 transitions. [2019-10-15 03:10:29,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 03:10:29,243 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:10:29,243 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:10:29,244 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:10:29,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:10:29,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1338842519, now seen corresponding path program 1 times [2019-10-15 03:10:29,244 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:10:29,245 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362571076] [2019-10-15 03:10:29,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:29,245 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:10:29,245 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:10:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:10:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:10:29,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362571076] [2019-10-15 03:10:29,437 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:10:29,437 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:10:29,439 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251758372] [2019-10-15 03:10:29,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:10:29,440 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:10:29,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:10:29,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:29,442 INFO L87 Difference]: Start difference. First operand 17902 states and 28102 transitions. Second operand 3 states. [2019-10-15 03:10:30,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:10:30,174 INFO L93 Difference]: Finished difference Result 19063 states and 30094 transitions. [2019-10-15 03:10:30,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:10:30,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-15 03:10:30,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:10:30,314 INFO L225 Difference]: With dead ends: 19063 [2019-10-15 03:10:30,315 INFO L226 Difference]: Without dead ends: 19050 [2019-10-15 03:10:30,331 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:10:30,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19050 states.