/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:13:08,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:13:08,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:13:08,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:13:08,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:13:08,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:13:08,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:13:08,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:13:08,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:13:08,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:13:08,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:13:08,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:13:08,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:13:08,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:13:08,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:13:08,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:13:08,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:13:08,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:13:08,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:13:08,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:13:08,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:13:08,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:13:08,620 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:13:08,621 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:13:08,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:13:08,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:13:08,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:13:08,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:13:08,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:13:08,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:13:08,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:13:08,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:13:08,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:13:08,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:13:08,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:13:08,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:13:08,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:13:08,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:13:08,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:13:08,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:13:08,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:13:08,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:13:08,661 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:13:08,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:13:08,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:13:08,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:13:08,663 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:13:08,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:13:08,663 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:13:08,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:13:08,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:13:08,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:13:08,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:13:08,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:13:08,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:13:08,664 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:13:08,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:13:08,665 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:13:08,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:13:08,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:13:08,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:13:08,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:13:08,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:13:08,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:13:08,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:13:08,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:13:08,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:13:08,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:13:08,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:13:08,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:13:08,667 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:13:08,973 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:13:08,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:13:08,991 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:13:08,992 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:13:08,993 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:13:08,994 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product28.cil.c [2019-11-07 04:13:09,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c755d381d/7bdaf26f48524106b202221c66094ce5/FLAG08897abe3 [2019-11-07 04:13:09,756 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:13:09,758 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product28.cil.c [2019-11-07 04:13:09,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c755d381d/7bdaf26f48524106b202221c66094ce5/FLAG08897abe3 [2019-11-07 04:13:09,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c755d381d/7bdaf26f48524106b202221c66094ce5 [2019-11-07 04:13:09,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:13:09,958 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:13:09,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:13:09,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:13:09,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:13:09,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:13:09" (1/1) ... [2019-11-07 04:13:09,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1cb841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:09, skipping insertion in model container [2019-11-07 04:13:09,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:13:09" (1/1) ... [2019-11-07 04:13:09,976 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:13:10,071 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:13:10,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:13:10,794 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:13:11,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:13:11,092 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:13:11,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11 WrapperNode [2019-11-07 04:13:11,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:13:11,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:13:11,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:13:11,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:13:11,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11" (1/1) ... [2019-11-07 04:13:11,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11" (1/1) ... [2019-11-07 04:13:11,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11" (1/1) ... [2019-11-07 04:13:11,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11" (1/1) ... [2019-11-07 04:13:11,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11" (1/1) ... [2019-11-07 04:13:11,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11" (1/1) ... [2019-11-07 04:13:11,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11" (1/1) ... [2019-11-07 04:13:11,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:13:11,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:13:11,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:13:11,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:13:11,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:13:11,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:13:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:13:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:13:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-11-07 04:13:11,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-11-07 04:13:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-11-07 04:13:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-11-07 04:13:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-11-07 04:13:11,391 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-11-07 04:13:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-11-07 04:13:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-11-07 04:13:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-11-07 04:13:11,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-11-07 04:13:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-11-07 04:13:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:13:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:13:11,393 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:13:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:13:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-11-07 04:13:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-11-07 04:13:11,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-11-07 04:13:11,395 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-11-07 04:13:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-11-07 04:13:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-11-07 04:13:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-11-07 04:13:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-11-07 04:13:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-11-07 04:13:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-11-07 04:13:11,396 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-11-07 04:13:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-11-07 04:13:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-11-07 04:13:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-11-07 04:13:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-11-07 04:13:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-11-07 04:13:11,397 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-11-07 04:13:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-11-07 04:13:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-11-07 04:13:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-11-07 04:13:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-11-07 04:13:11,398 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-11-07 04:13:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-11-07 04:13:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-11-07 04:13:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-11-07 04:13:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-11-07 04:13:11,399 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:13:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-11-07 04:13:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-11-07 04:13:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-11-07 04:13:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-11-07 04:13:11,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-11-07 04:13:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:13:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:13:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:13:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:13:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:13:11,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:13:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-11-07 04:13:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-11-07 04:13:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-11-07 04:13:11,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-11-07 04:13:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-11-07 04:13:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-11-07 04:13:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-11-07 04:13:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-11-07 04:13:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-11-07 04:13:11,403 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-11-07 04:13:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-11-07 04:13:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-11-07 04:13:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:13:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-11-07 04:13:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-11-07 04:13:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-11-07 04:13:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:13:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-11-07 04:13:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:13:11,405 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:13:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:13:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:13:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-11-07 04:13:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-11-07 04:13:11,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:13:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:13:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:13:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-11-07 04:13:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-11-07 04:13:11,407 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-11-07 04:13:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-11-07 04:13:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-11-07 04:13:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-11-07 04:13:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-11-07 04:13:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-11-07 04:13:11,408 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-11-07 04:13:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-11-07 04:13:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-11-07 04:13:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:13:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:13:11,409 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:13:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:13:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:13:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-11-07 04:13:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:13:11,410 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-11-07 04:13:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-11-07 04:13:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-11-07 04:13:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-11-07 04:13:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-11-07 04:13:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-11-07 04:13:11,411 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-11-07 04:13:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-11-07 04:13:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-11-07 04:13:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-11-07 04:13:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-11-07 04:13:11,412 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-11-07 04:13:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-11-07 04:13:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-11-07 04:13:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-11-07 04:13:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-11-07 04:13:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-11-07 04:13:11,413 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-11-07 04:13:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-11-07 04:13:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-11-07 04:13:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-11-07 04:13:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-11-07 04:13:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-11-07 04:13:11,414 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-11-07 04:13:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-11-07 04:13:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-11-07 04:13:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-11-07 04:13:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-11-07 04:13:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-11-07 04:13:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-11-07 04:13:11,415 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-11-07 04:13:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:13:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-11-07 04:13:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:13:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:13:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:13:11,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:13:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:13:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:13:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:13:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:13:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:13:11,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:13:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:13:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:13:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:13:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:13:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:13:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:13:11,418 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:13:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-11-07 04:13:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-11-07 04:13:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 04:13:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-11-07 04:13:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-11-07 04:13:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-11-07 04:13:11,419 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-11-07 04:13:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-11-07 04:13:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-11-07 04:13:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-11-07 04:13:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-11-07 04:13:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:13:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-11-07 04:13:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-11-07 04:13:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-11-07 04:13:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:13:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-11-07 04:13:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:13:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:13:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:13:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:13:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-11-07 04:13:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-11-07 04:13:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:13:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:13:11,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:13:16,424 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:13:16,425 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-07 04:13:16,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:13:16 BoogieIcfgContainer [2019-11-07 04:13:16,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:13:16,427 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:13:16,427 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:13:16,430 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:13:16,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:13:09" (1/3) ... [2019-11-07 04:13:16,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c196b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:13:16, skipping insertion in model container [2019-11-07 04:13:16,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:13:11" (2/3) ... [2019-11-07 04:13:16,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c196b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:13:16, skipping insertion in model container [2019-11-07 04:13:16,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:13:16" (3/3) ... [2019-11-07 04:13:16,433 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product28.cil.c [2019-11-07 04:13:16,443 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:13:16,452 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:13:16,463 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:13:16,493 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:13:16,494 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:13:16,494 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:13:16,494 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:13:16,494 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:13:16,494 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:13:16,494 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:13:16,495 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:13:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states. [2019-11-07 04:13:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-07 04:13:16,539 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:16,540 INFO L410 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] [2019-11-07 04:13:16,542 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:16,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:16,548 INFO L82 PathProgramCache]: Analyzing trace with hash -142911324, now seen corresponding path program 1 times [2019-11-07 04:13:16,558 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:16,558 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923172274] [2019-11-07 04:13:16,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:13:17,162 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923172274] [2019-11-07 04:13:17,162 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:17,163 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:13:17,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741184231] [2019-11-07 04:13:17,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:13:17,169 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:17,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:13:17,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:13:17,186 INFO L87 Difference]: Start difference. First operand 582 states. Second operand 2 states. [2019-11-07 04:13:17,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:17,272 INFO L93 Difference]: Finished difference Result 479 states and 707 transitions. [2019-11-07 04:13:17,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:13:17,273 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 74 [2019-11-07 04:13:17,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:17,308 INFO L225 Difference]: With dead ends: 479 [2019-11-07 04:13:17,308 INFO L226 Difference]: Without dead ends: 445 [2019-11-07 04:13:17,312 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:13:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-11-07 04:13:17,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2019-11-07 04:13:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2019-11-07 04:13:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 656 transitions. [2019-11-07 04:13:17,415 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 656 transitions. Word has length 74 [2019-11-07 04:13:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:17,418 INFO L462 AbstractCegarLoop]: Abstraction has 445 states and 656 transitions. [2019-11-07 04:13:17,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:13:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 656 transitions. [2019-11-07 04:13:17,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-07 04:13:17,426 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:17,426 INFO L410 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] [2019-11-07 04:13:17,427 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:17,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:17,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1370699530, now seen corresponding path program 1 times [2019-11-07 04:13:17,428 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:17,428 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988685413] [2019-11-07 04:13:17,429 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:17,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:13:17,783 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988685413] [2019-11-07 04:13:17,783 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:17,783 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:13:17,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197170329] [2019-11-07 04:13:17,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:13:17,786 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:17,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:13:17,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:13:17,787 INFO L87 Difference]: Start difference. First operand 445 states and 656 transitions. Second operand 6 states. [2019-11-07 04:13:21,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:21,078 INFO L93 Difference]: Finished difference Result 1350 states and 2056 transitions. [2019-11-07 04:13:21,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:13:21,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2019-11-07 04:13:21,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:21,088 INFO L225 Difference]: With dead ends: 1350 [2019-11-07 04:13:21,088 INFO L226 Difference]: Without dead ends: 947 [2019-11-07 04:13:21,095 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:13:21,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2019-11-07 04:13:21,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 852. [2019-11-07 04:13:21,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2019-11-07 04:13:21,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1298 transitions. [2019-11-07 04:13:21,193 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1298 transitions. Word has length 75 [2019-11-07 04:13:21,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:21,194 INFO L462 AbstractCegarLoop]: Abstraction has 852 states and 1298 transitions. [2019-11-07 04:13:21,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:13:21,194 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1298 transitions. [2019-11-07 04:13:21,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-11-07 04:13:21,204 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:21,204 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:13:21,204 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:21,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:21,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1887671256, now seen corresponding path program 1 times [2019-11-07 04:13:21,205 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:21,205 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171972012] [2019-11-07 04:13:21,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:13:21,478 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171972012] [2019-11-07 04:13:21,478 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:21,479 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-11-07 04:13:21,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774461265] [2019-11-07 04:13:21,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-07 04:13:21,480 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:21,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-07 04:13:21,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:13:21,481 INFO L87 Difference]: Start difference. First operand 852 states and 1298 transitions. Second operand 12 states. [2019-11-07 04:13:29,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:29,386 INFO L93 Difference]: Finished difference Result 2573 states and 3928 transitions. [2019-11-07 04:13:29,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-07 04:13:29,387 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 122 [2019-11-07 04:13:29,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:29,402 INFO L225 Difference]: With dead ends: 2573 [2019-11-07 04:13:29,402 INFO L226 Difference]: Without dead ends: 1763 [2019-11-07 04:13:29,410 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2019-11-07 04:13:29,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2019-11-07 04:13:29,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1704. [2019-11-07 04:13:29,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1704 states. [2019-11-07 04:13:29,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2577 transitions. [2019-11-07 04:13:29,553 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2577 transitions. Word has length 122 [2019-11-07 04:13:29,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:29,554 INFO L462 AbstractCegarLoop]: Abstraction has 1704 states and 2577 transitions. [2019-11-07 04:13:29,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-07 04:13:29,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2577 transitions. [2019-11-07 04:13:29,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-11-07 04:13:29,683 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:29,684 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:13:29,684 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:29,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:29,685 INFO L82 PathProgramCache]: Analyzing trace with hash 525588367, now seen corresponding path program 1 times [2019-11-07 04:13:29,685 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:29,688 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467323797] [2019-11-07 04:13:29,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:13:29,935 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467323797] [2019-11-07 04:13:29,935 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:29,936 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:13:29,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880433403] [2019-11-07 04:13:29,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:13:29,937 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:29,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:13:29,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:29,938 INFO L87 Difference]: Start difference. First operand 1704 states and 2577 transitions. Second operand 3 states. [2019-11-07 04:13:30,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:30,131 INFO L93 Difference]: Finished difference Result 4294 states and 6600 transitions. [2019-11-07 04:13:30,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:13:30,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-11-07 04:13:30,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:30,161 INFO L225 Difference]: With dead ends: 4294 [2019-11-07 04:13:30,161 INFO L226 Difference]: Without dead ends: 2632 [2019-11-07 04:13:30,174 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:30,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2019-11-07 04:13:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2615. [2019-11-07 04:13:30,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2615 states. [2019-11-07 04:13:30,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 3997 transitions. [2019-11-07 04:13:30,357 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 3997 transitions. Word has length 123 [2019-11-07 04:13:30,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:30,360 INFO L462 AbstractCegarLoop]: Abstraction has 2615 states and 3997 transitions. [2019-11-07 04:13:30,360 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:13:30,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 3997 transitions. [2019-11-07 04:13:30,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-11-07 04:13:30,365 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:30,365 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:13:30,365 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:30,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:30,366 INFO L82 PathProgramCache]: Analyzing trace with hash -888024506, now seen corresponding path program 1 times [2019-11-07 04:13:30,366 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:30,367 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001225934] [2019-11-07 04:13:30,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:30,543 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:13:30,543 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001225934] [2019-11-07 04:13:30,544 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:30,544 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:13:30,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370270503] [2019-11-07 04:13:30,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:13:30,546 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:30,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:13:30,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:30,547 INFO L87 Difference]: Start difference. First operand 2615 states and 3997 transitions. Second operand 3 states. [2019-11-07 04:13:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:30,777 INFO L93 Difference]: Finished difference Result 7028 states and 10970 transitions. [2019-11-07 04:13:30,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:13:30,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2019-11-07 04:13:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:30,812 INFO L225 Difference]: With dead ends: 7028 [2019-11-07 04:13:30,812 INFO L226 Difference]: Without dead ends: 4456 [2019-11-07 04:13:30,826 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:30,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4456 states. [2019-11-07 04:13:31,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4456 to 4438. [2019-11-07 04:13:31,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4438 states. [2019-11-07 04:13:31,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 6895 transitions. [2019-11-07 04:13:31,172 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 6895 transitions. Word has length 124 [2019-11-07 04:13:31,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:31,173 INFO L462 AbstractCegarLoop]: Abstraction has 4438 states and 6895 transitions. [2019-11-07 04:13:31,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:13:31,174 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 6895 transitions. [2019-11-07 04:13:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-07 04:13:31,181 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:31,181 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:13:31,183 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:31,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:31,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1760346703, now seen corresponding path program 1 times [2019-11-07 04:13:31,185 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:31,185 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504675937] [2019-11-07 04:13:31,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:31,685 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:13:31,686 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504675937] [2019-11-07 04:13:31,687 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:31,689 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:13:31,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760162294] [2019-11-07 04:13:31,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:13:31,690 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:31,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:13:31,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:31,691 INFO L87 Difference]: Start difference. First operand 4438 states and 6895 transitions. Second operand 3 states. [2019-11-07 04:13:32,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:32,048 INFO L93 Difference]: Finished difference Result 12497 states and 20026 transitions. [2019-11-07 04:13:32,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:13:32,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2019-11-07 04:13:32,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:32,121 INFO L225 Difference]: With dead ends: 12497 [2019-11-07 04:13:32,122 INFO L226 Difference]: Without dead ends: 8104 [2019-11-07 04:13:32,146 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:32,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8104 states. [2019-11-07 04:13:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8104 to 8085. [2019-11-07 04:13:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8085 states. [2019-11-07 04:13:32,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8085 states to 8085 states and 12902 transitions. [2019-11-07 04:13:32,664 INFO L78 Accepts]: Start accepts. Automaton has 8085 states and 12902 transitions. Word has length 125 [2019-11-07 04:13:32,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:32,666 INFO L462 AbstractCegarLoop]: Abstraction has 8085 states and 12902 transitions. [2019-11-07 04:13:32,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:13:32,666 INFO L276 IsEmpty]: Start isEmpty. Operand 8085 states and 12902 transitions. [2019-11-07 04:13:32,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-11-07 04:13:32,670 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:32,670 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:13:32,671 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:32,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:32,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1262440168, now seen corresponding path program 1 times [2019-11-07 04:13:32,671 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:32,671 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955089341] [2019-11-07 04:13:32,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:32,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:32,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:13:32,835 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955089341] [2019-11-07 04:13:32,835 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:32,835 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:13:32,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041837741] [2019-11-07 04:13:32,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:13:32,836 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:32,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:13:32,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:32,837 INFO L87 Difference]: Start difference. First operand 8085 states and 12902 transitions. Second operand 3 states. [2019-11-07 04:13:33,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:33,574 INFO L93 Difference]: Finished difference Result 23436 states and 39221 transitions. [2019-11-07 04:13:33,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:13:33,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2019-11-07 04:13:33,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:33,708 INFO L225 Difference]: With dead ends: 23436 [2019-11-07 04:13:33,709 INFO L226 Difference]: Without dead ends: 15400 [2019-11-07 04:13:33,760 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:33,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15400 states. [2019-11-07 04:13:35,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15400 to 15380. [2019-11-07 04:13:35,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15380 states. [2019-11-07 04:13:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15380 states to 15380 states and 25645 transitions. [2019-11-07 04:13:35,501 INFO L78 Accepts]: Start accepts. Automaton has 15380 states and 25645 transitions. Word has length 126 [2019-11-07 04:13:35,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:35,502 INFO L462 AbstractCegarLoop]: Abstraction has 15380 states and 25645 transitions. [2019-11-07 04:13:35,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:13:35,502 INFO L276 IsEmpty]: Start isEmpty. Operand 15380 states and 25645 transitions. [2019-11-07 04:13:35,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-11-07 04:13:35,506 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:35,507 INFO L410 BasicCegarLoop]: trace histogram [3, 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] [2019-11-07 04:13:35,507 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:35,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:35,507 INFO L82 PathProgramCache]: Analyzing trace with hash 479556563, now seen corresponding path program 1 times [2019-11-07 04:13:35,507 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:35,508 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559065129] [2019-11-07 04:13:35,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:35,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-07 04:13:35,661 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559065129] [2019-11-07 04:13:35,662 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:35,662 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:13:35,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300270818] [2019-11-07 04:13:35,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:13:35,663 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:35,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:13:35,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:35,664 INFO L87 Difference]: Start difference. First operand 15380 states and 25645 transitions. Second operand 3 states. [2019-11-07 04:13:36,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:36,247 INFO L93 Difference]: Finished difference Result 16313 states and 27498 transitions. [2019-11-07 04:13:36,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:13:36,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2019-11-07 04:13:36,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:36,398 INFO L225 Difference]: With dead ends: 16313 [2019-11-07 04:13:36,399 INFO L226 Difference]: Without dead ends: 16300 [2019-11-07 04:13:36,417 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:13:36,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16300 states. [2019-11-07 04:13:37,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16300 to 16285. [2019-11-07 04:13:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16285 states. [2019-11-07 04:13:37,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16285 states to 16285 states and 27449 transitions. [2019-11-07 04:13:37,464 INFO L78 Accepts]: Start accepts. Automaton has 16285 states and 27449 transitions. Word has length 127 [2019-11-07 04:13:37,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:37,465 INFO L462 AbstractCegarLoop]: Abstraction has 16285 states and 27449 transitions. [2019-11-07 04:13:37,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:13:37,465 INFO L276 IsEmpty]: Start isEmpty. Operand 16285 states and 27449 transitions. [2019-11-07 04:13:37,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-11-07 04:13:37,474 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:37,475 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:13:37,475 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:37,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:37,476 INFO L82 PathProgramCache]: Analyzing trace with hash 667088604, now seen corresponding path program 1 times [2019-11-07 04:13:37,476 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:37,476 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912564948] [2019-11-07 04:13:37,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-11-07 04:13:37,689 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912564948] [2019-11-07 04:13:37,690 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:13:37,690 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:13:37,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257018388] [2019-11-07 04:13:37,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:13:37,691 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:13:37,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:13:37,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:13:37,694 INFO L87 Difference]: Start difference. First operand 16285 states and 27449 transitions. Second operand 5 states. [2019-11-07 04:13:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:13:38,437 INFO L93 Difference]: Finished difference Result 32743 states and 56884 transitions. [2019-11-07 04:13:38,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:13:38,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 196 [2019-11-07 04:13:38,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:13:38,543 INFO L225 Difference]: With dead ends: 32743 [2019-11-07 04:13:38,543 INFO L226 Difference]: Without dead ends: 16501 [2019-11-07 04:13:38,621 INFO L630 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 [2019-11-07 04:13:38,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16501 states. [2019-11-07 04:13:39,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16501 to 16465. [2019-11-07 04:13:39,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16465 states. [2019-11-07 04:13:39,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16465 states to 16465 states and 27629 transitions. [2019-11-07 04:13:39,408 INFO L78 Accepts]: Start accepts. Automaton has 16465 states and 27629 transitions. Word has length 196 [2019-11-07 04:13:39,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:13:39,409 INFO L462 AbstractCegarLoop]: Abstraction has 16465 states and 27629 transitions. [2019-11-07 04:13:39,409 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:13:39,409 INFO L276 IsEmpty]: Start isEmpty. Operand 16465 states and 27629 transitions. [2019-11-07 04:13:39,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-07 04:13:39,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:13:39,424 INFO L410 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:13:39,425 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:13:39,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:13:39,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1637418137, now seen corresponding path program 1 times [2019-11-07 04:13:39,425 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:13:39,426 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111290036] [2019-11-07 04:13:39,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:13:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-11-07 04:13:39,779 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111290036] [2019-11-07 04:13:39,780 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988344374] [2019-11-07 04:13:39,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:13:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:13:40,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 3724 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 04:13:40,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:13:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 04:13:40,796 INFO L321 TraceCheckSpWp]: Computing backward predicates...