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_spec14_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:02:14,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:02:14,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:02:14,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:02:14,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:02:14,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:02:14,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:02:14,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:02:14,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:02:14,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:02:14,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:02:15,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:02:15,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:02:15,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:02:15,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:02:15,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:02:15,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:02:15,008 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:02:15,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:02:15,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:02:15,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:02:15,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:02:15,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:02:15,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:02:15,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:02:15,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:02:15,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:02:15,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:02:15,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:02:15,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:02:15,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:02:15,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:02:15,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:02:15,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:02:15,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:02:15,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:02:15,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:02:15,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:02:15,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:02:15,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:02:15,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:02:15,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:02:15,057 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:02:15,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:02:15,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:02:15,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:02:15,059 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:02:15,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:02:15,060 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:02:15,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:02:15,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:02:15,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:02:15,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:02:15,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:02:15,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:02:15,063 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:02:15,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:02:15,063 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:02:15,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:02:15,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:02:15,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:02:15,064 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:02:15,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:02:15,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:02:15,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:02:15,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:02:15,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:02:15,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:02:15,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:02:15,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:02:15,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:02:15,337 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:02:15,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:02:15,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:02:15,366 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:02:15,366 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:02:15,367 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2019-10-07 14:02:15,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57996c51a/856e3ba558914b2e8f3d8c1923ff1de4/FLAG87117e807 [2019-10-07 14:02:16,121 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:02:16,124 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product28.cil.c [2019-10-07 14:02:16,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57996c51a/856e3ba558914b2e8f3d8c1923ff1de4/FLAG87117e807 [2019-10-07 14:02:16,280 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57996c51a/856e3ba558914b2e8f3d8c1923ff1de4 [2019-10-07 14:02:16,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:02:16,292 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:02:16,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:02:16,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:02:16,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:02:16,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:02:16" (1/1) ... [2019-10-07 14:02:16,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225cf470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:16, skipping insertion in model container [2019-10-07 14:02:16,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:02:16" (1/1) ... [2019-10-07 14:02:16,308 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:02:16,395 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:02:17,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:02:17,129 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:02:17,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:02:17,337 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:02:17,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17 WrapperNode [2019-10-07 14:02:17,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:02:17,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:02:17,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:02:17,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:02:17,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17" (1/1) ... [2019-10-07 14:02:17,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17" (1/1) ... [2019-10-07 14:02:17,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17" (1/1) ... [2019-10-07 14:02:17,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17" (1/1) ... [2019-10-07 14:02:17,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17" (1/1) ... [2019-10-07 14:02:17,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17" (1/1) ... [2019-10-07 14:02:17,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17" (1/1) ... [2019-10-07 14:02:17,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:02:17,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:02:17,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:02:17,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:02:17,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:02:17,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:02:17,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:02:17,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:02:17,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:02:17,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:02:17,597 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:02:17,597 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:02:17,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2019-10-07 14:02:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:02:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:02:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:02:17,599 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:02:17,599 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:02:17,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:02:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:02:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:02:17,602 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:02:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:02:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:02:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:02:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:02:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:02:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:02:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:02:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:02:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:02:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:02:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:02:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:02:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:02:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:02:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:02:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:02:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:02:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:02:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:02:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-07 14:02:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:02:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-07 14:02:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:02:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:02:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:02:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:02:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:02:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:02:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:02:17,609 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:02:17,609 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:02:17,609 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:02:17,609 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:02:17,609 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:02:17,609 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:02:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:02:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:02:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:02:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:02:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:02:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:02:17,611 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:02:17,611 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:02:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:02:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:02:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:02:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:02:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:02:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:02:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:02:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:02:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:02:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:02:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:02:17,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:02:17,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:02:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:02:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:02:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:02:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:02:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:02:17,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:02:17,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:02:17,617 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:02:17,617 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:02:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:02:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:02:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:02:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:02:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:02:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:02:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:02:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2019-10-07 14:02:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:02:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:02:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:02:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:02:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:02:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:02:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:02:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:02:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:02:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:02:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:02:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:02:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:02:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:02:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:02:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:02:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:02:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:02:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:02:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:02:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:02:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:02:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:02:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:02:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:02:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:02:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:02:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:02:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:02:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:02:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:02:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:02:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:02:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:02:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:02:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-07 14:02:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-07 14:02:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:02:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:02:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:02:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:02:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:02:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:02:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:02:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:02:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:02:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:02:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:02:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:02:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:02:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:02:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:02:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:02:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:02:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:02:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:02:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:02:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:02:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:02:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:02:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:02:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:02:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:02:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:02:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:02:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:02:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:02:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:02:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:02:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:02:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:02:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:02:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:02:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:02:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:02:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:02:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:02:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:02:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:02:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:02:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:02:22,389 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:02:22,389 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:02:22,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:02:22 BoogieIcfgContainer [2019-10-07 14:02:22,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:02:22,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:02:22,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:02:22,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:02:22,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:02:16" (1/3) ... [2019-10-07 14:02:22,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc4d958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:02:22, skipping insertion in model container [2019-10-07 14:02:22,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:02:17" (2/3) ... [2019-10-07 14:02:22,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc4d958 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:02:22, skipping insertion in model container [2019-10-07 14:02:22,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:02:22" (3/3) ... [2019-10-07 14:02:22,399 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2019-10-07 14:02:22,409 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:02:22,418 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:02:22,431 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:02:22,461 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:02:22,461 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:02:22,461 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:02:22,461 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:02:22,462 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:02:22,462 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:02:22,462 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:02:22,462 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:02:22,498 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states. [2019-10-07 14:02:22,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-07 14:02:22,513 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:22,514 INFO L385 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] [2019-10-07 14:02:22,516 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:22,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:22,521 INFO L82 PathProgramCache]: Analyzing trace with hash -934132718, now seen corresponding path program 1 times [2019-10-07 14:02:22,529 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:22,529 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:22,529 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:22,529 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:22,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:23,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:02:23,233 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:23,233 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:02:23,234 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:02:23,238 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:02:23,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:02:23,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:02:23,255 INFO L87 Difference]: Start difference. First operand 562 states. Second operand 3 states. [2019-10-07 14:02:23,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:23,600 INFO L93 Difference]: Finished difference Result 1263 states and 1903 transitions. [2019-10-07 14:02:23,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:02:23,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2019-10-07 14:02:23,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:23,642 INFO L225 Difference]: With dead ends: 1263 [2019-10-07 14:02:23,643 INFO L226 Difference]: Without dead ends: 829 [2019-10-07 14:02:23,651 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:02:23,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2019-10-07 14:02:23,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 784. [2019-10-07 14:02:23,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-07 14:02:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1177 transitions. [2019-10-07 14:02:23,793 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1177 transitions. Word has length 72 [2019-10-07 14:02:23,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:23,794 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1177 transitions. [2019-10-07 14:02:23,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:02:23,794 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1177 transitions. [2019-10-07 14:02:23,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:02:23,805 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:23,806 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-07 14:02:23,806 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:23,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:23,806 INFO L82 PathProgramCache]: Analyzing trace with hash -345207699, now seen corresponding path program 1 times [2019-10-07 14:02:23,807 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:23,807 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:23,807 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:23,807 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:23,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:24,165 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:02:24,166 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:24,166 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:02:24,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:24,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 2827 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-07 14:02:24,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:02:24,895 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:02:25,176 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:02:25,176 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 6] total 15 [2019-10-07 14:02:25,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:02:25,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:02:25,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-10-07 14:02:25,259 INFO L87 Difference]: Start difference. First operand 784 states and 1177 transitions. Second operand 6 states. [2019-10-07 14:02:26,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:26,004 INFO L93 Difference]: Finished difference Result 1800 states and 2680 transitions. [2019-10-07 14:02:26,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:02:26,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2019-10-07 14:02:26,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:26,016 INFO L225 Difference]: With dead ends: 1800 [2019-10-07 14:02:26,016 INFO L226 Difference]: Without dead ends: 1046 [2019-10-07 14:02:26,022 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 230 SyntacticMatches, 9 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:02:26,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2019-10-07 14:02:26,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1039. [2019-10-07 14:02:26,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2019-10-07 14:02:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1513 transitions. [2019-10-07 14:02:26,102 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1513 transitions. Word has length 119 [2019-10-07 14:02:26,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:26,102 INFO L462 AbstractCegarLoop]: Abstraction has 1039 states and 1513 transitions. [2019-10-07 14:02:26,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:02:26,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1513 transitions. [2019-10-07 14:02:26,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:02:26,107 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:26,108 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-07 14:02:26,318 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:26,319 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:26,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:26,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1094701558, now seen corresponding path program 1 times [2019-10-07 14:02:26,320 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:26,320 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:26,320 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:26,320 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:26,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:26,532 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:02:26,533 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:26,533 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:02:26,533 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:02:26,534 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:02:26,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:02:26,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:02:26,535 INFO L87 Difference]: Start difference. First operand 1039 states and 1513 transitions. Second operand 7 states. [2019-10-07 14:02:30,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:30,306 INFO L93 Difference]: Finished difference Result 2914 states and 4320 transitions. [2019-10-07 14:02:30,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:02:30,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2019-10-07 14:02:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:30,326 INFO L225 Difference]: With dead ends: 2914 [2019-10-07 14:02:30,327 INFO L226 Difference]: Without dead ends: 1907 [2019-10-07 14:02:30,334 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:02:30,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1907 states. [2019-10-07 14:02:30,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1907 to 1812. [2019-10-07 14:02:30,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1812 states. [2019-10-07 14:02:30,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 2682 transitions. [2019-10-07 14:02:30,472 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 2682 transitions. Word has length 120 [2019-10-07 14:02:30,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:30,473 INFO L462 AbstractCegarLoop]: Abstraction has 1812 states and 2682 transitions. [2019-10-07 14:02:30,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:02:30,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 2682 transitions. [2019-10-07 14:02:30,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 14:02:30,477 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:30,477 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-07 14:02:30,478 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:30,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:30,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1024517782, now seen corresponding path program 1 times [2019-10-07 14:02:30,478 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:30,478 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:30,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:30,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:30,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:02:30,730 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:30,731 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:02:30,731 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:02:30,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:02:30,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:02:30,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:02:30,732 INFO L87 Difference]: Start difference. First operand 1812 states and 2682 transitions. Second operand 9 states. [2019-10-07 14:02:34,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:34,503 INFO L93 Difference]: Finished difference Result 1991 states and 2964 transitions. [2019-10-07 14:02:34,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-07 14:02:34,504 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 124 [2019-10-07 14:02:34,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:34,521 INFO L225 Difference]: With dead ends: 1991 [2019-10-07 14:02:34,521 INFO L226 Difference]: Without dead ends: 1988 [2019-10-07 14:02:34,523 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:02:34,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1988 states. [2019-10-07 14:02:34,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1988 to 1908. [2019-10-07 14:02:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1908 states. [2019-10-07 14:02:34,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 2841 transitions. [2019-10-07 14:02:34,629 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 2841 transitions. Word has length 124 [2019-10-07 14:02:34,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:34,630 INFO L462 AbstractCegarLoop]: Abstraction has 1908 states and 2841 transitions. [2019-10-07 14:02:34,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:02:34,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 2841 transitions. [2019-10-07 14:02:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 14:02:34,636 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:34,637 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:02:34,637 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:34,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:34,638 INFO L82 PathProgramCache]: Analyzing trace with hash 167613539, now seen corresponding path program 1 times [2019-10-07 14:02:34,638 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:34,638 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:34,638 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:34,638 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:34,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:34,809 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2019-10-07 14:02:34,809 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:34,809 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:02:34,809 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:02:34,811 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:02:34,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:02:34,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:02:34,812 INFO L87 Difference]: Start difference. First operand 1908 states and 2841 transitions. Second operand 5 states. [2019-10-07 14:02:34,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:34,910 INFO L93 Difference]: Finished difference Result 3809 states and 5719 transitions. [2019-10-07 14:02:34,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:02:34,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2019-10-07 14:02:34,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:34,925 INFO L225 Difference]: With dead ends: 3809 [2019-10-07 14:02:34,925 INFO L226 Difference]: Without dead ends: 1932 [2019-10-07 14:02:34,935 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:02:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2019-10-07 14:02:35,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2019-10-07 14:02:35,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1932 states. [2019-10-07 14:02:35,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 2865 transitions. [2019-10-07 14:02:35,048 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 2865 transitions. Word has length 160 [2019-10-07 14:02:35,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:35,050 INFO L462 AbstractCegarLoop]: Abstraction has 1932 states and 2865 transitions. [2019-10-07 14:02:35,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:02:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 2865 transitions. [2019-10-07 14:02:35,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 14:02:35,057 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:35,057 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:02:35,058 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:35,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:35,058 INFO L82 PathProgramCache]: Analyzing trace with hash -870188209, now seen corresponding path program 1 times [2019-10-07 14:02:35,058 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:35,060 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:35,061 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:35,061 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:35,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-07 14:02:35,386 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:35,387 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:02:35,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:35,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 3174 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:02:35,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:36,040 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-07 14:02:36,041 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:36,289 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-07 14:02:36,289 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:02:36,289 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:02:36,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:02:36,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:02:36,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:02:36,290 INFO L87 Difference]: Start difference. First operand 1932 states and 2865 transitions. Second operand 4 states. [2019-10-07 14:02:36,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:36,530 INFO L93 Difference]: Finished difference Result 3989 states and 6058 transitions. [2019-10-07 14:02:36,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:02:36,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2019-10-07 14:02:36,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:36,545 INFO L225 Difference]: With dead ends: 3989 [2019-10-07 14:02:36,545 INFO L226 Difference]: Without dead ends: 2088 [2019-10-07 14:02:36,555 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 329 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:02:36,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2019-10-07 14:02:36,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2088. [2019-10-07 14:02:36,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2088 states. [2019-10-07 14:02:36,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 3157 transitions. [2019-10-07 14:02:36,654 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 3157 transitions. Word has length 165 [2019-10-07 14:02:36,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:36,654 INFO L462 AbstractCegarLoop]: Abstraction has 2088 states and 3157 transitions. [2019-10-07 14:02:36,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:02:36,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 3157 transitions. [2019-10-07 14:02:36,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 14:02:36,661 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:36,661 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:02:36,879 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:36,879 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:36,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:36,880 INFO L82 PathProgramCache]: Analyzing trace with hash -497006630, now seen corresponding path program 1 times [2019-10-07 14:02:36,880 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:36,880 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:36,880 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:36,880 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:36,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:37,054 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-10-07 14:02:37,055 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:37,055 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:02:37,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:37,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 3179 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:02:37,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:38,009 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 14:02:38,010 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:38,209 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2019-10-07 14:02:38,209 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:02:38,209 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:02:38,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:02:38,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:02:38,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:02:38,211 INFO L87 Difference]: Start difference. First operand 2088 states and 3157 transitions. Second operand 4 states. [2019-10-07 14:02:38,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:38,460 INFO L93 Difference]: Finished difference Result 4301 states and 6638 transitions. [2019-10-07 14:02:38,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:02:38,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 170 [2019-10-07 14:02:38,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:38,477 INFO L225 Difference]: With dead ends: 4301 [2019-10-07 14:02:38,477 INFO L226 Difference]: Without dead ends: 2244 [2019-10-07 14:02:38,489 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 337 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:02:38,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2244 states. [2019-10-07 14:02:38,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2244 to 2244. [2019-10-07 14:02:38,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2244 states. [2019-10-07 14:02:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3449 transitions. [2019-10-07 14:02:38,594 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3449 transitions. Word has length 170 [2019-10-07 14:02:38,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:38,595 INFO L462 AbstractCegarLoop]: Abstraction has 2244 states and 3449 transitions. [2019-10-07 14:02:38,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:02:38,595 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3449 transitions. [2019-10-07 14:02:38,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:02:38,602 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:38,602 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:02:38,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:38,811 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:38,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:38,811 INFO L82 PathProgramCache]: Analyzing trace with hash 465241290, now seen corresponding path program 1 times [2019-10-07 14:02:38,812 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:38,812 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:38,812 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:38,812 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:38,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:38,967 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2019-10-07 14:02:38,967 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:38,967 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:02:38,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:39,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 3183 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:02:39,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:39,905 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:02:39,906 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:40,189 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2019-10-07 14:02:40,190 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:02:40,190 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:02:40,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:02:40,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:02:40,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:02:40,192 INFO L87 Difference]: Start difference. First operand 2244 states and 3449 transitions. Second operand 4 states. [2019-10-07 14:02:40,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:40,455 INFO L93 Difference]: Finished difference Result 4613 states and 7218 transitions. [2019-10-07 14:02:40,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:02:40,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2019-10-07 14:02:40,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:40,472 INFO L225 Difference]: With dead ends: 4613 [2019-10-07 14:02:40,472 INFO L226 Difference]: Without dead ends: 2400 [2019-10-07 14:02:40,483 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:02:40,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2400 states. [2019-10-07 14:02:40,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2400 to 2400. [2019-10-07 14:02:40,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2400 states. [2019-10-07 14:02:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 3741 transitions. [2019-10-07 14:02:40,587 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 3741 transitions. Word has length 174 [2019-10-07 14:02:40,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:40,588 INFO L462 AbstractCegarLoop]: Abstraction has 2400 states and 3741 transitions. [2019-10-07 14:02:40,588 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:02:40,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 3741 transitions. [2019-10-07 14:02:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-07 14:02:40,595 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:40,595 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:02:40,804 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:40,804 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:40,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:40,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1260916497, now seen corresponding path program 1 times [2019-10-07 14:02:40,805 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:40,805 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:40,805 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:40,805 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:40,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:40,978 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:02:40,978 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:40,979 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:02:40,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:41,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:41,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 3186 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:02:41,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:02:41,790 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:42,003 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:02:42,004 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:02:42,004 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:02:42,005 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:02:42,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:02:42,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:02:42,005 INFO L87 Difference]: Start difference. First operand 2400 states and 3741 transitions. Second operand 4 states. [2019-10-07 14:02:42,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:02:42,255 INFO L93 Difference]: Finished difference Result 4925 states and 7798 transitions. [2019-10-07 14:02:42,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:02:42,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2019-10-07 14:02:42,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:02:42,272 INFO L225 Difference]: With dead ends: 4925 [2019-10-07 14:02:42,272 INFO L226 Difference]: Without dead ends: 2556 [2019-10-07 14:02:42,282 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 351 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:02:42,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2556 states. [2019-10-07 14:02:42,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2556 to 2556. [2019-10-07 14:02:42,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2556 states. [2019-10-07 14:02:42,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 4033 transitions. [2019-10-07 14:02:42,386 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 4033 transitions. Word has length 177 [2019-10-07 14:02:42,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:02:42,388 INFO L462 AbstractCegarLoop]: Abstraction has 2556 states and 4033 transitions. [2019-10-07 14:02:42,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:02:42,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 4033 transitions. [2019-10-07 14:02:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 14:02:42,396 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:02:42,396 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:02:42,605 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:42,605 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:02:42,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:02:42,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1203811773, now seen corresponding path program 1 times [2019-10-07 14:02:42,606 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:02:42,606 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:42,606 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:42,606 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:02:42,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:02:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:42,804 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-07 14:02:42,804 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:02:42,804 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:02:42,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:02:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:02:43,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 3182 conjuncts, 35 conjunts are in the unsatisfiable core [2019-10-07 14:02:43,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:02:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:02:43,456 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:02:43,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:02:43,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:02:43,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:02:43,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:02:43,914 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:02:44,010 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-07 14:02:44,010 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:02:44,058 INFO L162 IcfgInterpreter]: Started Sifa with 139 locations of interest [2019-10-07 14:02:44,058 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:02:44,068 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:02:44,078 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:02:44,078 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:03:30,698 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 767 [2019-10-07 14:03:35,947 WARN L191 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 430 DAG size of output: 347 [2019-10-07 14:03:36,382 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 860 [2019-10-07 14:03:36,788 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 860 [2019-10-07 14:03:37,097 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 860 [2019-10-07 14:03:37,669 WARN L191 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:03:38,232 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:03:38,720 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:03:39,304 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:03:40,334 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 1046 DAG size of output: 1044 [2019-10-07 14:03:40,862 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:03:41,393 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:03:41,918 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:03:42,391 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:03:42,911 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1044 [2019-10-07 14:03:42,931 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 385 for LOIs [2019-10-07 14:03:43,201 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 735 [2019-10-07 14:03:43,377 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 735 [2019-10-07 14:03:43,744 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 919 [2019-10-07 14:03:43,746 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1086 for LOIs [2019-10-07 14:03:44,193 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:44,643 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:44,818 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:03:45,570 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:03:46,032 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:46,567 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:46,683 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:03:47,432 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:03:48,060 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:48,566 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:48,811 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:03:49,633 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:03:50,521 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1086 [2019-10-07 14:03:50,969 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:51,153 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:03:51,905 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:03:52,422 WARN L191 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:52,882 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:52,993 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:03:53,738 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:03:54,193 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:54,720 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:54,833 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:03:55,577 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:03:56,022 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:56,469 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:57,136 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:03:57,882 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:03:58,340 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:58,785 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:03:58,898 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:03:59,668 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:00,123 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:00,572 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:00,719 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:01,466 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:01,926 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:02,373 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:02,487 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:03,249 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:03,694 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:04,158 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:04,293 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:05,040 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:05,488 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:05,932 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:06,045 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:06,800 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:07,254 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:07,709 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:04:07,822 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:08,577 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:09,412 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:10,176 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:10,296 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:11,049 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:12,451 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:04:13,210 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:13,338 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:14,094 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:14,877 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:15,636 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:15,749 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:16,503 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:17,525 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:04:18,283 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:04:18,405 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:19,170 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:20,332 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:21,101 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:21,253 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:22,012 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:23,277 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:04:24,038 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:04:24,153 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:24,912 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:25,684 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:04:26,448 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:04:26,564 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:27,337 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1257 [2019-10-07 14:04:28,102 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:28,880 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:28,999 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:29,770 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:30,556 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:31,327 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:31,454 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:32,221 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:33,629 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:04:34,401 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:34,662 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:35,495 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:36,257 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:37,019 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:37,132 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:37,888 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:04:39,283 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:04:40,045 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:40,194 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:40,945 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:42,292 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:04:43,046 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:43,168 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:43,917 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:44,674 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:45,429 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:45,541 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:04:46,289 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:04:47,683 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:04:48,445 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:48,567 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:49,329 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:50,625 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:04:51,368 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:04:51,489 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:52,248 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:53,513 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:04:54,266 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:04:54,381 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:55,137 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:56,492 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1250 [2019-10-07 14:04:57,241 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:04:57,362 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:04:58,114 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:04:59,474 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1252 [2019-10-07 14:05:00,232 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:00,357 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:01,109 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:05:02,479 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:05:03,219 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:03,337 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:04,074 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:05,411 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:05:06,152 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:06,277 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:07,018 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:07,763 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:08,509 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:08,622 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:09,366 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:10,994 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:05:11,736 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:11,858 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:12,595 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:13,958 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:05:14,701 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:14,823 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:15,585 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:16,331 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:17,069 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:17,180 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:17,923 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:19,309 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:05:20,065 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:20,187 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:20,935 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:22,335 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:05:23,099 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:23,218 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:23,978 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:24,734 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:25,487 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:25,599 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:26,342 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:27,679 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:05:28,437 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:28,558 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:29,315 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:30,655 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:05:31,412 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:05:31,530 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:32,276 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:05:33,754 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:05:34,509 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:05:34,627 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:35,388 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:05:36,725 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1259 [2019-10-07 14:05:37,477 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:05:37,597 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:38,354 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1259 [2019-10-07 14:05:39,706 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:05:40,444 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:40,582 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:41,311 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:42,640 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:05:43,387 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:43,519 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:44,262 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:44,999 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:45,737 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:45,850 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:05:46,599 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:05:47,970 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:05:48,716 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:48,835 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:49,576 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:50,917 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:05:51,671 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:51,789 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:52,531 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:53,280 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:54,032 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:54,145 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:54,888 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:56,152 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:05:56,899 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:05:57,022 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:05:57,766 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:59,087 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:05:59,830 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:05:59,948 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:00,701 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:06:02,045 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:02,782 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:02,911 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:03,653 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:04,984 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:05,719 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:05,839 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:06,585 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:07,944 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:08,694 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:08,811 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:09,555 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:10,900 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:11,640 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:11,757 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:12,492 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:13,253 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:13,996 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:14,109 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:14,855 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:15,642 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:16,420 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:16,544 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:17,304 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:18,666 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:06:19,426 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:19,545 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:20,301 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:21,668 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:22,415 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:22,536 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:23,284 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:24,648 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:06:25,402 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:25,537 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:26,304 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:27,078 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:27,833 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:27,946 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:28,699 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:30,071 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:06:30,825 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:30,944 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:31,709 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:33,093 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:06:33,847 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:33,966 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:34,724 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:35,492 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:36,246 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:36,359 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:37,133 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:38,405 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:06:39,158 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:39,292 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 438 [2019-10-07 14:06:40,054 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:06:40,060 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1112 for LOIs [2019-10-07 14:06:40,556 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:06:41,055 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:06:41,168 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:41,923 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:41,934 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1064 for LOIs [2019-10-07 14:06:42,346 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:06:42,761 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:06:42,875 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 435 [2019-10-07 14:06:43,624 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:06:43,900 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:06:43,901 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:06:43,906 INFO L168 Benchmark]: Toolchain (without parser) took 267614.36 ms. Allocated memory was 144.2 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 99.4 MB in the beginning and 306.9 MB in the end (delta: -207.5 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2019-10-07 14:06:43,906 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:06:43,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1045.15 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.2 MB in the beginning and 139.8 MB in the end (delta: -40.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:06:43,907 INFO L168 Benchmark]: Boogie Preprocessor took 184.03 ms. Allocated memory is still 201.3 MB. Free memory was 139.8 MB in the beginning and 130.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:06:43,907 INFO L168 Benchmark]: RCFGBuilder took 4868.42 ms. Allocated memory was 201.3 MB in the beginning and 306.2 MB in the end (delta: 104.9 MB). Free memory was 130.4 MB in the beginning and 246.9 MB in the end (delta: -116.5 MB). Peak memory consumption was 165.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:06:43,907 INFO L168 Benchmark]: TraceAbstraction took 261512.11 ms. Allocated memory was 306.2 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 246.9 MB in the beginning and 306.9 MB in the end (delta: -60.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2019-10-07 14:06:43,909 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1045.15 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 99.2 MB in the beginning and 139.8 MB in the end (delta: -40.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 184.03 ms. Allocated memory is still 201.3 MB. Free memory was 139.8 MB in the beginning and 130.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4868.42 ms. Allocated memory was 201.3 MB in the beginning and 306.2 MB in the end (delta: 104.9 MB). Free memory was 130.4 MB in the beginning and 246.9 MB in the end (delta: -116.5 MB). Peak memory consumption was 165.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 261512.11 ms. Allocated memory was 306.2 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 246.9 MB in the beginning and 306.9 MB in the end (delta: -60.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...