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_spec3_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:27:07,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:27:07,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:27:07,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:27:07,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:27:07,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:27:07,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:27:07,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:27:07,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:27:07,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:27:07,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:27:07,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:27:07,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:27:07,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:27:07,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:27:07,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:27:07,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:27:07,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:27:07,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:27:07,668 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:27:07,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:27:07,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:27:07,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:27:07,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:27:07,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:27:07,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:27:07,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:27:07,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:27:07,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:27:07,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:27:07,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:27:07,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:27:07,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:27:07,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:27:07,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:27:07,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:27:07,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:27:07,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:27:07,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:27:07,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:27:07,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:27:07,690 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 14:27:07,713 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:27:07,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:27:07,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:27:07,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:27:07,715 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:27:07,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:27:07,719 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:27:07,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:27:07,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:27:07,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:27:07,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:27:07,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:27:07,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:27:07,721 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:27:07,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:27:07,721 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:27:07,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:27:07,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:27:07,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:27:07,722 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:27:07,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:27:07,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:27:07,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:27:07,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:27:07,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:27:07,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:27:07,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:27:07,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:27:07,724 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 14:27:07,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:27:08,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:27:08,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:27:08,017 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:27:08,017 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:27:08,018 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product24.cil.c [2019-10-07 14:27:08,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3f2381c/9307f52c223b48d6937f064f65d40492/FLAGd23bb37d0 [2019-10-07 14:27:08,638 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:27:08,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product24.cil.c [2019-10-07 14:27:08,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3f2381c/9307f52c223b48d6937f064f65d40492/FLAGd23bb37d0 [2019-10-07 14:27:08,905 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f3f2381c/9307f52c223b48d6937f064f65d40492 [2019-10-07 14:27:08,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:27:08,914 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:27:08,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:27:08,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:27:08,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:27:08,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:27:08" (1/1) ... [2019-10-07 14:27:08,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d4771d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:08, skipping insertion in model container [2019-10-07 14:27:08,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:27:08" (1/1) ... [2019-10-07 14:27:08,929 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:27:09,004 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:27:09,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:27:09,753 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:27:09,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:27:10,018 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:27:10,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10 WrapperNode [2019-10-07 14:27:10,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:27:10,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:27:10,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:27:10,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:27:10,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10" (1/1) ... [2019-10-07 14:27:10,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10" (1/1) ... [2019-10-07 14:27:10,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10" (1/1) ... [2019-10-07 14:27:10,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10" (1/1) ... [2019-10-07 14:27:10,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10" (1/1) ... [2019-10-07 14:27:10,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10" (1/1) ... [2019-10-07 14:27:10,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10" (1/1) ... [2019-10-07 14:27:10,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:27:10,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:27:10,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:27:10,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:27:10,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10" (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 14:27:10,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:27:10,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:27:10,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:27:10,302 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:27:10,302 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:27:10,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:27:10,303 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:27:10,303 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:27:10,303 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:27:10,304 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:27:10,304 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:27:10,305 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:27:10,305 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:27:10,305 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:27:10,305 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:27:10,306 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:27:10,308 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:27:10,308 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:27:10,308 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:27:10,309 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:27:10,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:27:10,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:27:10,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:27:10,309 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:27:10,310 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:27:10,310 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:27:10,310 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:27:10,310 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:27:10,310 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:27:10,311 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:27:10,311 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:27:10,311 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:27:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:27:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:27:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:27:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:27:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:27:10,313 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:27:10,313 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:27:10,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:27:10,313 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:27:10,313 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:27:10,313 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:27:10,314 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:27:10,314 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:27:10,314 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:27:10,314 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:27:10,314 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:27:10,315 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:27:10,315 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:27:10,315 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:27:10,315 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:27:10,315 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-07 14:27:10,315 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:27:10,316 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-07 14:27:10,316 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:27:10,316 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:27:10,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:27:10,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:27:10,317 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:27:10,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:27:10,317 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:27:10,317 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:27:10,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:27:10,318 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:27:10,318 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:27:10,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:27:10,318 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:27:10,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:27:10,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:27:10,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:27:10,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:27:10,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:27:10,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:27:10,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:27:10,320 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:27:10,321 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:27:10,321 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:27:10,322 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:27:10,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:27:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:27:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:27:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:27:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:27:10,323 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:27:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:27:10,324 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:27:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:27:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:27:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:27:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:27:10,325 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:27:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:27:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:27:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:27:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:27:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:27:10,326 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:27:10,327 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:27:10,327 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:27:10,327 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:27:10,327 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:27:10,327 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:27:10,327 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:27:10,328 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:27:10,328 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:27:10,328 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:27:10,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:27:10,328 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:27:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:27:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:27:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:27:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:27:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:27:10,329 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:27:10,330 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:27:10,330 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:27:10,330 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:27:10,330 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:27:10,331 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:27:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:27:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:27:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:27:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:27:10,334 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:27:10,334 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:27:10,334 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:27:10,334 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:27:10,335 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:27:10,335 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:27:10,335 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:27:10,335 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:27:10,336 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:27:10,336 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:27:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:27:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:27:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:27:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:27:10,341 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:27:10,341 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:27:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:27:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:27:10,342 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:27:10,343 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:27:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:27:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:27:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:27:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-07 14:27:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:27:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:27:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-07 14:27:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:27:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:27:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:27:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:27:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:27:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:27:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:27:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:27:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:27:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:27:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:27:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:27:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:27:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:27:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:27:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:27:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:27:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:27:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:27:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:27:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:27:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:27:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:27:10,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:27:14,789 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:27:14,790 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:27:14,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:27:14 BoogieIcfgContainer [2019-10-07 14:27:14,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:27:14,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:27:14,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:27:14,798 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:27:14,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:27:08" (1/3) ... [2019-10-07 14:27:14,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae2c15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:27:14, skipping insertion in model container [2019-10-07 14:27:14,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:27:10" (2/3) ... [2019-10-07 14:27:14,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ae2c15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:27:14, skipping insertion in model container [2019-10-07 14:27:14,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:27:14" (3/3) ... [2019-10-07 14:27:14,802 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product24.cil.c [2019-10-07 14:27:14,812 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:27:14,824 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:27:14,845 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:27:14,891 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:27:14,891 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:27:14,892 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:27:14,892 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:27:14,892 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:27:14,892 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:27:14,892 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:27:14,892 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:27:14,939 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states. [2019-10-07 14:27:14,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-07 14:27:14,955 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:27:14,956 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:27:14,960 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:27:14,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:27:14,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1707992655, now seen corresponding path program 1 times [2019-10-07 14:27:14,976 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:27:14,976 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:14,977 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:14,977 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:14,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:27:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:15,778 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 14:27:15,779 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:15,779 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:27:15,780 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:27:15,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:27:15,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:27:15,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:27:15,801 INFO L87 Difference]: Start difference. First operand 635 states. Second operand 8 states. [2019-10-07 14:27:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:27:19,276 INFO L93 Difference]: Finished difference Result 1838 states and 2790 transitions. [2019-10-07 14:27:19,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-07 14:27:19,279 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2019-10-07 14:27:19,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:27:19,311 INFO L225 Difference]: With dead ends: 1838 [2019-10-07 14:27:19,311 INFO L226 Difference]: Without dead ends: 1331 [2019-10-07 14:27:19,323 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:27:19,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2019-10-07 14:27:19,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1321. [2019-10-07 14:27:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1321 states. [2019-10-07 14:27:19,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1955 transitions. [2019-10-07 14:27:19,524 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1955 transitions. Word has length 80 [2019-10-07 14:27:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:27:19,526 INFO L462 AbstractCegarLoop]: Abstraction has 1321 states and 1955 transitions. [2019-10-07 14:27:19,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:27:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1955 transitions. [2019-10-07 14:27:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 14:27:19,541 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:27:19,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:27:19,542 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:27:19,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:27:19,543 INFO L82 PathProgramCache]: Analyzing trace with hash -867389666, now seen corresponding path program 1 times [2019-10-07 14:27:19,543 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:27:19,543 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:19,543 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:19,543 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:19,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:27:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:19,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 14:27:19,944 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:19,944 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:27:19,944 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:27:19,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:27:19,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:27:19,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:27:19,958 INFO L87 Difference]: Start difference. First operand 1321 states and 1955 transitions. Second operand 10 states. [2019-10-07 14:27:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:27:20,771 INFO L93 Difference]: Finished difference Result 1349 states and 1989 transitions. [2019-10-07 14:27:20,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 14:27:20,772 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2019-10-07 14:27:20,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:27:20,793 INFO L225 Difference]: With dead ends: 1349 [2019-10-07 14:27:20,793 INFO L226 Difference]: Without dead ends: 1346 [2019-10-07 14:27:20,797 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:27:20,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2019-10-07 14:27:20,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1323. [2019-10-07 14:27:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1323 states. [2019-10-07 14:27:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1323 states to 1323 states and 1955 transitions. [2019-10-07 14:27:20,912 INFO L78 Accepts]: Start accepts. Automaton has 1323 states and 1955 transitions. Word has length 81 [2019-10-07 14:27:20,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:27:20,916 INFO L462 AbstractCegarLoop]: Abstraction has 1323 states and 1955 transitions. [2019-10-07 14:27:20,917 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:27:20,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1323 states and 1955 transitions. [2019-10-07 14:27:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-07 14:27:20,925 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:27:20,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:27:20,925 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:27:20,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:27:20,927 INFO L82 PathProgramCache]: Analyzing trace with hash -118771068, now seen corresponding path program 1 times [2019-10-07 14:27:20,927 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:27:20,927 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:20,928 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:20,928 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:27:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:21,115 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 14:27:21,116 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:21,116 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:27:21,116 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:27:21,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:27:21,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:27:21,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:27:21,120 INFO L87 Difference]: Start difference. First operand 1323 states and 1955 transitions. Second operand 3 states. [2019-10-07 14:27:21,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:27:21,326 INFO L93 Difference]: Finished difference Result 3790 states and 5715 transitions. [2019-10-07 14:27:21,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:27:21,327 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-10-07 14:27:21,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:27:21,346 INFO L225 Difference]: With dead ends: 3790 [2019-10-07 14:27:21,346 INFO L226 Difference]: Without dead ends: 2498 [2019-10-07 14:27:21,354 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:27:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2019-10-07 14:27:21,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2430. [2019-10-07 14:27:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2430 states. [2019-10-07 14:27:21,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2430 states to 2430 states and 3617 transitions. [2019-10-07 14:27:21,656 INFO L78 Accepts]: Start accepts. Automaton has 2430 states and 3617 transitions. Word has length 82 [2019-10-07 14:27:21,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:27:21,656 INFO L462 AbstractCegarLoop]: Abstraction has 2430 states and 3617 transitions. [2019-10-07 14:27:21,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:27:21,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2430 states and 3617 transitions. [2019-10-07 14:27:21,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 14:27:21,662 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:27:21,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:27:21,662 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:27:21,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:27:21,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1972688209, now seen corresponding path program 1 times [2019-10-07 14:27:21,663 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:27:21,664 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:21,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:21,664 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:27:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 14:27:21,957 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:21,957 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:27:21,958 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 14:27:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:22,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:27:22,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:27:22,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:27:22,568 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:27:22,679 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 14:27:22,679 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:27:22,680 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2019-10-07 14:27:22,681 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:27:22,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:27:22,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:27:22,681 INFO L87 Difference]: Start difference. First operand 2430 states and 3617 transitions. Second operand 3 states. [2019-10-07 14:27:22,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:27:22,978 INFO L93 Difference]: Finished difference Result 5316 states and 7993 transitions. [2019-10-07 14:27:22,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:27:22,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2019-10-07 14:27:22,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:27:23,003 INFO L225 Difference]: With dead ends: 5316 [2019-10-07 14:27:23,003 INFO L226 Difference]: Without dead ends: 2917 [2019-10-07 14:27:23,021 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:27:23,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2019-10-07 14:27:23,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2861. [2019-10-07 14:27:23,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2861 states. [2019-10-07 14:27:23,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 4271 transitions. [2019-10-07 14:27:23,234 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 4271 transitions. Word has length 81 [2019-10-07 14:27:23,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:27:23,235 INFO L462 AbstractCegarLoop]: Abstraction has 2861 states and 4271 transitions. [2019-10-07 14:27:23,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:27:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 4271 transitions. [2019-10-07 14:27:23,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:27:23,240 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:27:23,240 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:27:23,449 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:27:23,450 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:27:23,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:27:23,451 INFO L82 PathProgramCache]: Analyzing trace with hash -647214156, now seen corresponding path program 1 times [2019-10-07 14:27:23,451 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:27:23,451 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:23,451 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:23,451 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:23,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:27:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:27:23,660 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:23,660 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:27:23,660 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:27:23,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:27:23,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:27:23,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:27:23,662 INFO L87 Difference]: Start difference. First operand 2861 states and 4271 transitions. Second operand 7 states. [2019-10-07 14:27:27,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:27:27,501 INFO L93 Difference]: Finished difference Result 10592 states and 16378 transitions. [2019-10-07 14:27:27,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-07 14:27:27,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2019-10-07 14:27:27,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:27:27,559 INFO L225 Difference]: With dead ends: 10592 [2019-10-07 14:27:27,559 INFO L226 Difference]: Without dead ends: 7762 [2019-10-07 14:27:27,581 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:27:27,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7762 states. [2019-10-07 14:27:28,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7762 to 7614. [2019-10-07 14:27:28,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7614 states. [2019-10-07 14:27:28,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7614 states to 7614 states and 11619 transitions. [2019-10-07 14:27:28,164 INFO L78 Accepts]: Start accepts. Automaton has 7614 states and 11619 transitions. Word has length 129 [2019-10-07 14:27:28,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:27:28,165 INFO L462 AbstractCegarLoop]: Abstraction has 7614 states and 11619 transitions. [2019-10-07 14:27:28,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:27:28,165 INFO L276 IsEmpty]: Start isEmpty. Operand 7614 states and 11619 transitions. [2019-10-07 14:27:28,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 14:27:28,170 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:27:28,170 INFO L385 BasicCegarLoop]: trace histogram [5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2019-10-07 14:27:28,170 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:27:28,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:27:28,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1130224717, now seen corresponding path program 1 times [2019-10-07 14:27:28,171 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:27:28,171 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:28,171 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:28,172 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:27:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:28,523 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 16 proven. 30 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-07 14:27:28,523 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:28,524 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:27:28,524 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 14:27:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:29,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 3838 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:27:29,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:27:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-07 14:27:29,261 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:27:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:27:29,584 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:27:29,584 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [13] total 14 [2019-10-07 14:27:29,585 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:27:29,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:27:29,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2019-10-07 14:27:29,587 INFO L87 Difference]: Start difference. First operand 7614 states and 11619 transitions. Second operand 3 states. [2019-10-07 14:27:30,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:27:30,017 INFO L93 Difference]: Finished difference Result 16629 states and 25900 transitions. [2019-10-07 14:27:30,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:27:30,018 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-10-07 14:27:30,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:27:30,107 INFO L225 Difference]: With dead ends: 16629 [2019-10-07 14:27:30,108 INFO L226 Difference]: Without dead ends: 9046 [2019-10-07 14:27:30,174 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 391 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2019-10-07 14:27:30,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9046 states. [2019-10-07 14:27:30,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9046 to 8729. [2019-10-07 14:27:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8729 states. [2019-10-07 14:27:30,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8729 states to 8729 states and 13333 transitions. [2019-10-07 14:27:30,613 INFO L78 Accepts]: Start accepts. Automaton has 8729 states and 13333 transitions. Word has length 195 [2019-10-07 14:27:30,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:27:30,614 INFO L462 AbstractCegarLoop]: Abstraction has 8729 states and 13333 transitions. [2019-10-07 14:27:30,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:27:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 8729 states and 13333 transitions. [2019-10-07 14:27:30,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 14:27:30,622 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:27:30,622 INFO L385 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:27:30,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:27:30,833 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:27:30,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:27:30,834 INFO L82 PathProgramCache]: Analyzing trace with hash -161383409, now seen corresponding path program 1 times [2019-10-07 14:27:30,834 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:27:30,834 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:30,834 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:30,834 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:30,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:27:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-07 14:27:31,265 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:31,266 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:27:31,266 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 14:27:31,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:31,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 3584 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-07 14:27:31,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:27:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:27:32,046 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:27:32,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:27:32,541 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-07 14:27:32,542 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:27:32,542 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13, 9] total 25 [2019-10-07 14:27:32,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:27:32,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:27:32,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2019-10-07 14:27:32,543 INFO L87 Difference]: Start difference. First operand 8729 states and 13333 transitions. Second operand 9 states. [2019-10-07 14:27:39,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:27:39,644 INFO L93 Difference]: Finished difference Result 22016 states and 34030 transitions. [2019-10-07 14:27:39,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-07 14:27:39,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 168 [2019-10-07 14:27:39,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:27:39,725 INFO L225 Difference]: With dead ends: 22016 [2019-10-07 14:27:39,725 INFO L226 Difference]: Without dead ends: 13318 [2019-10-07 14:27:39,763 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 324 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=171, Invalid=1019, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 14:27:39,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13318 states. [2019-10-07 14:27:41,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13318 to 12986. [2019-10-07 14:27:41,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12986 states. [2019-10-07 14:27:41,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12986 states to 12986 states and 20043 transitions. [2019-10-07 14:27:41,215 INFO L78 Accepts]: Start accepts. Automaton has 12986 states and 20043 transitions. Word has length 168 [2019-10-07 14:27:41,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:27:41,215 INFO L462 AbstractCegarLoop]: Abstraction has 12986 states and 20043 transitions. [2019-10-07 14:27:41,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:27:41,215 INFO L276 IsEmpty]: Start isEmpty. Operand 12986 states and 20043 transitions. [2019-10-07 14:27:41,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:27:41,219 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:27:41,220 INFO L385 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:27:41,428 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:27:41,429 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:27:41,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:27:41,430 INFO L82 PathProgramCache]: Analyzing trace with hash -994892965, now seen corresponding path program 1 times [2019-10-07 14:27:41,430 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:27:41,430 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:41,431 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:41,431 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:41,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:27:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:41,689 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2019-10-07 14:27:41,689 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:41,689 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:27:41,689 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 14:27:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:42,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 3626 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 14:27:42,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:27:42,493 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:27:42,494 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:27:42,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:27:42,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:27:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2019-10-07 14:27:42,777 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:27:42,777 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [12] total 20 [2019-10-07 14:27:42,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:27:42,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:27:42,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2019-10-07 14:27:42,779 INFO L87 Difference]: Start difference. First operand 12986 states and 20043 transitions. Second operand 10 states. [2019-10-07 14:27:53,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:27:53,934 INFO L93 Difference]: Finished difference Result 60903 states and 98410 transitions. [2019-10-07 14:27:53,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 14:27:53,936 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2019-10-07 14:27:53,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:27:54,306 INFO L225 Difference]: With dead ends: 60903 [2019-10-07 14:27:54,306 INFO L226 Difference]: Without dead ends: 48016 [2019-10-07 14:27:54,388 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:27:54,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48016 states. [2019-10-07 14:27:57,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48016 to 44392. [2019-10-07 14:27:57,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44392 states. [2019-10-07 14:27:57,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44392 states to 44392 states and 70020 transitions. [2019-10-07 14:27:57,396 INFO L78 Accepts]: Start accepts. Automaton has 44392 states and 70020 transitions. Word has length 181 [2019-10-07 14:27:57,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:27:57,397 INFO L462 AbstractCegarLoop]: Abstraction has 44392 states and 70020 transitions. [2019-10-07 14:27:57,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:27:57,397 INFO L276 IsEmpty]: Start isEmpty. Operand 44392 states and 70020 transitions. [2019-10-07 14:27:57,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:27:57,402 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:27:57,402 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:27:57,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:27:57,611 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:27:57,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:27:57,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1555713354, now seen corresponding path program 1 times [2019-10-07 14:27:57,612 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:27:57,613 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:57,613 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:57,613 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:27:57,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:27:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:27:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 14:27:58,077 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:27:58,077 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:27:58,077 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:27:58,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:27:58,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:27:58,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:27:58,078 INFO L87 Difference]: Start difference. First operand 44392 states and 70020 transitions. Second operand 10 states. [2019-10-07 14:28:05,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:28:05,201 INFO L93 Difference]: Finished difference Result 153110 states and 251718 transitions. [2019-10-07 14:28:05,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 14:28:05,202 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-07 14:28:05,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:28:05,925 INFO L225 Difference]: With dead ends: 153110 [2019-10-07 14:28:05,925 INFO L226 Difference]: Without dead ends: 108749 [2019-10-07 14:28:06,148 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:28:06,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108749 states. [2019-10-07 14:28:12,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108749 to 107647. [2019-10-07 14:28:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107647 states. [2019-10-07 14:28:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107647 states to 107647 states and 174517 transitions. [2019-10-07 14:28:12,844 INFO L78 Accepts]: Start accepts. Automaton has 107647 states and 174517 transitions. Word has length 135 [2019-10-07 14:28:12,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:28:12,845 INFO L462 AbstractCegarLoop]: Abstraction has 107647 states and 174517 transitions. [2019-10-07 14:28:12,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:28:12,845 INFO L276 IsEmpty]: Start isEmpty. Operand 107647 states and 174517 transitions. [2019-10-07 14:28:12,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:28:12,849 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:28:12,850 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:28:12,850 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:28:12,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:28:12,850 INFO L82 PathProgramCache]: Analyzing trace with hash -296533546, now seen corresponding path program 1 times [2019-10-07 14:28:12,851 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:28:12,851 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:28:12,851 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:28:12,851 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:28:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:28:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:28:13,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:28:13,724 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:28:13,724 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:28:13,724 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 14:28:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:28:14,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 3319 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 14:28:14,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:28:14,816 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 14:28:14,816 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:28:15,133 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:28:15,133 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:28:15,165 INFO L162 IcfgInterpreter]: Started Sifa with 126 locations of interest [2019-10-07 14:28:15,166 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:28:15,172 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:28:15,179 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:28:15,180 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:28:57,443 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 769 [2019-10-07 14:29:04,318 WARN L191 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 430 DAG size of output: 347 [2019-10-07 14:29:04,791 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:29:05,315 WARN L191 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:29:05,714 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:29:06,283 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:29:06,808 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:29:07,285 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:29:07,808 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:29:08,727 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 1050 DAG size of output: 1048 [2019-10-07 14:29:09,217 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:29:09,776 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:29:10,256 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:29:10,729 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:29:11,298 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:29:11,319 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:29:11,609 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 737 [2019-10-07 14:29:11,723 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 737 [2019-10-07 14:29:12,075 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:29:12,077 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1094 for LOIs [2019-10-07 14:29:12,531 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:12,995 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:13,129 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:13,900 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:14,367 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:14,822 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:15,048 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:15,824 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:16,308 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:16,757 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:16,875 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:17,633 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:18,484 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1094 [2019-10-07 14:29:18,944 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:19,146 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:19,905 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:20,373 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:20,841 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:20,955 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:21,711 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:22,170 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:22,626 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:22,750 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:23,495 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:23,952 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:24,399 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:24,514 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:25,289 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:25,744 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:26,190 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:26,303 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:27,040 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:27,485 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:27,934 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:28,056 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:28,796 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:29,253 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:29,702 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:29,814 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:30,559 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:31,000 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:31,447 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:31,560 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:32,297 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:32,744 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:33,190 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:33,302 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:34,051 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:34,502 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:34,962 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:29:35,076 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:35,825 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:36,642 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:37,389 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:37,509 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:38,245 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:40,467 WARN L191 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:29:41,213 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:41,336 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:42,082 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:42,827 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:43,579 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:43,694 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:44,449 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:46,167 WARN L191 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:47,013 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:47,132 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:47,895 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:49,207 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:29:49,966 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:50,092 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:50,853 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:52,225 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1260 DAG size of output: 1258 [2019-10-07 14:29:52,993 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:53,111 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:53,878 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:54,647 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:55,408 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:55,527 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:56,295 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:57,059 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:57,804 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:57,921 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:58,669 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:29:59,464 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:00,241 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:00,363 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:01,123 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:30:02,444 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:30:03,200 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:03,322 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:04,098 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:30:04,863 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:05,606 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:05,721 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:06,462 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:30:07,849 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:08,586 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:08,706 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:09,448 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:10,792 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:11,548 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:11,669 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:12,419 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:13,170 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:13,939 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:14,055 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:14,805 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:16,202 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:30:16,967 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:17,089 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:17,839 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:19,135 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:30:19,888 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:30:20,021 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:20,777 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:22,059 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:30:22,816 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:30:22,932 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:23,690 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:25,055 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:30:25,816 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:30:26,000 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:26,768 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:28,139 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:30:28,884 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:29,012 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:29,774 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:30:31,169 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:31,940 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:32,064 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:32,798 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:34,172 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:34,915 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:35,034 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:35,783 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:36,541 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:37,284 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:37,396 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:38,132 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:39,495 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:40,232 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:40,350 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:41,093 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:42,450 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:43,200 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:43,320 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:44,071 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:44,822 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:45,574 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:45,692 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:46,446 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:47,767 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:30:48,544 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:30:48,666 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:49,442 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:50,834 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:30:51,595 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:51,716 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:52,491 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:53,953 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:54,724 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:54,844 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:55,590 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:57,294 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:58,047 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:58,168 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:58,914 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:00,320 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:31:01,074 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:01,194 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:31:01,937 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:03,309 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:31:04,064 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:04,182 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:31:04,916 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:05,657 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:06,406 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:06,518 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:31:07,258 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:08,818 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:31:09,566 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:09,701 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:10,460 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:11,767 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:31:12,523 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:31:12,659 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:13,425 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:14,701 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:31:15,456 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:31:15,573 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:16,337 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:17,700 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:31:18,461 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:31:18,589 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:19,345 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:20,707 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:31:21,467 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:21,592 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:22,355 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:31:23,746 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:31:24,496 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:24,615 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:31:25,382 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:26,743 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:31:27,491 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:27,608 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:31:28,352 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:29,122 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:29,880 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:29,994 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:31:30,740 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:32,068 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:31:32,815 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:31:32,935 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:33,688 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:34,961 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:31:35,712 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:31:35,831 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:36,593 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:37,349 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:31:38,092 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:31:38,206 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:38,953 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:40,308 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:31:41,050 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:31:41,172 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:41,919 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:43,218 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:31:43,979 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:44,099 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:44,860 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:31:46,172 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:31:46,924 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:47,054 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:47,825 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:31:49,159 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:31:49,915 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:31:50,036 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:31:50,822 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:31:52,226 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:31:52,979 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:53,110 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:31:53,879 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:55,247 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:31:56,007 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:56,138 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:31:56,883 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:57,635 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:58,377 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:58,490 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:31:59,236 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:32:00,549 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:32:01,304 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:32:01,426 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:32:02,197 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:32:03,566 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:32:04,332 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:32:04,453 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:32:05,212 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:32:06,488 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:32:07,270 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:32:07,387 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:32:08,152 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:32:09,533 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:32:10,308 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:32:10,438 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:32:11,200 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:32:11,208 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1118 for LOIs [2019-10-07 14:32:11,697 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:32:12,183 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:32:12,298 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:32:13,054 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:32:13,066 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1064 for LOIs [2019-10-07 14:32:13,500 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:13,914 WARN L191 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 1064 [2019-10-07 14:32:14,031 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:32:14,780 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:32:15,044 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:32:15,046 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: ε 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: ε 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 14:32:15,052 INFO L168 Benchmark]: Toolchain (without parser) took 306138.74 ms. Allocated memory was 145.2 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 100.4 MB in the beginning and 856.2 MB in the end (delta: -755.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2019-10-07 14:32:15,053 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:32:15,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1104.34 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.2 MB in the beginning and 141.9 MB in the end (delta: -41.7 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:32:15,053 INFO L168 Benchmark]: Boogie Preprocessor took 223.15 ms. Allocated memory is still 203.4 MB. Free memory was 141.9 MB in the beginning and 132.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:32:15,053 INFO L168 Benchmark]: RCFGBuilder took 4548.80 ms. Allocated memory was 203.4 MB in the beginning and 299.4 MB in the end (delta: 95.9 MB). Free memory was 132.0 MB in the beginning and 207.2 MB in the end (delta: -75.2 MB). Peak memory consumption was 151.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:32:15,054 INFO L168 Benchmark]: TraceAbstraction took 300258.48 ms. Allocated memory was 299.4 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 207.2 MB in the beginning and 856.2 MB in the end (delta: -649.0 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2019-10-07 14:32:15,055 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 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1104.34 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.2 MB in the beginning and 141.9 MB in the end (delta: -41.7 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 223.15 ms. Allocated memory is still 203.4 MB. Free memory was 141.9 MB in the beginning and 132.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4548.80 ms. Allocated memory was 203.4 MB in the beginning and 299.4 MB in the end (delta: 95.9 MB). Free memory was 132.0 MB in the beginning and 207.2 MB in the end (delta: -75.2 MB). Peak memory consumption was 151.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 300258.48 ms. Allocated memory was 299.4 MB in the beginning and 3.1 GB in the end (delta: 2.8 GB). Free memory was 207.2 MB in the beginning and 856.2 MB in the end (delta: -649.0 MB). Peak memory consumption was 2.2 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: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: 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...