java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:35:29,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:35:29,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:35:29,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:35:29,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:35:29,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:35:29,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:35:29,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:35:29,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:35:29,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:35:29,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:35:29,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:35:29,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:35:29,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:35:29,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:35:29,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:35:29,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:35:29,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:35:29,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:35:29,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:35:29,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:35:29,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:35:29,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:35:29,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:35:29,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:35:29,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:35:29,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:35:29,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:35:29,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:35:29,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:35:29,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:35:29,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:35:29,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:35:29,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:35:29,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:35:29,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:35:29,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:35:29,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:35:29,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:35:29,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:35:29,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:35:29,414 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 14:35:29,441 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:35:29,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:35:29,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:35:29,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:35:29,443 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:35:29,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:35:29,443 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:35:29,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:35:29,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:35:29,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:35:29,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:35:29,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:35:29,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:35:29,446 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:35:29,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:35:29,446 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:35:29,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:35:29,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:35:29,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:35:29,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:35:29,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:35:29,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:35:29,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:35:29,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:35:29,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:35:29,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:35:29,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:35:29,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:35:29,449 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 14:35:29,744 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:35:29,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:35:29,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:35:29,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:35:29,769 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:35:29,769 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product31.cil.c [2019-10-07 14:35:29,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18c9c514a/6dd33519d93c4378b9e9836bf929e214/FLAG80cad2993 [2019-10-07 14:35:30,467 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:35:30,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product31.cil.c [2019-10-07 14:35:30,495 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18c9c514a/6dd33519d93c4378b9e9836bf929e214/FLAG80cad2993 [2019-10-07 14:35:30,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18c9c514a/6dd33519d93c4378b9e9836bf929e214 [2019-10-07 14:35:30,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:35:30,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:35:30,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:35:30,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:35:30,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:35:30,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:35:30" (1/1) ... [2019-10-07 14:35:30,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46cde57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:30, skipping insertion in model container [2019-10-07 14:35:30,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:35:30" (1/1) ... [2019-10-07 14:35:30,733 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:35:30,802 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:35:31,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:35:31,519 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:35:31,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:35:31,827 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:35:31,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31 WrapperNode [2019-10-07 14:35:31,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:35:31,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:35:31,829 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:35:31,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:35:31,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31" (1/1) ... [2019-10-07 14:35:31,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31" (1/1) ... [2019-10-07 14:35:31,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31" (1/1) ... [2019-10-07 14:35:31,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31" (1/1) ... [2019-10-07 14:35:31,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31" (1/1) ... [2019-10-07 14:35:32,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31" (1/1) ... [2019-10-07 14:35:32,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31" (1/1) ... [2019-10-07 14:35:32,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:35:32,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:35:32,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:35:32,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:35:32,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31" (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 14:35:32,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:35:32,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:35:32,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:35:32,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:35:32,161 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:35:32,162 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:35:32,163 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:35:32,163 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:35:32,164 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:35:32,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:35:32,164 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:35:32,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:35:32,166 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:35:32,166 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:35:32,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:35:32,167 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:35:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:35:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:35:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:35:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:35:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:35:32,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:35:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:35:32,171 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:35:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:35:32,172 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:35:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:35:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:35:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:35:32,173 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:35:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:35:32,174 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:35:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:35:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:35:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:35:32,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:35:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:35:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:35:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:35:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:35:32,176 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:35:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:35:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:35:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:35:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:35:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:35:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:35:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:35:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:35:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:35:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:35:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:35:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:35:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:35:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:35:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:35:32,179 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:35:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:35:32,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:35:32,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:35:32,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:35:32,181 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:35:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:35:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:35:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:35:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:35:32,182 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:35:32,183 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:35:32,183 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:35:32,184 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:35:32,184 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:35:32,184 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:35:32,184 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:35:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:35:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:35:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:35:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:35:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:35:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:35:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:35:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:35:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:35:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:35:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:35:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:35:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:35:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:35:32,189 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:35:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:35:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:35:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:35:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:35:32,190 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:35:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:35:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:35:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:35:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:35:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:35:32,191 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:35:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:35:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:35:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:35:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:35:32,192 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:35:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:35:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:35:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:35:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:35:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:35:32,193 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:35:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:35:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:35:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:35:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:35:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:35:32,194 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:35:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:35:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:35:32,195 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:35:32,196 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:35:32,196 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:35:32,196 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:35:32,196 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:35:32,197 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:35:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:35:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:35:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:35:32,198 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:35:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:35:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:35:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:35:32,199 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:35:32,200 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:35:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:35:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:35:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:35:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:35:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:35:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:35:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:35:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:35:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:35:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:35:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:35:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:35:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:35:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:35:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:35:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:35:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:35:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:35:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:35:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:35:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:35:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:35:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:35:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:35:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:35:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:35:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:35:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:35:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:35:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:35:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:35:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:35:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:35:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:35:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:35:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:35:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:35:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:35:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:35:32,217 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:35:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:35:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:35:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:35:32,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:35:37,038 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:35:37,039 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:35:37,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:35:37 BoogieIcfgContainer [2019-10-07 14:35:37,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:35:37,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:35:37,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:35:37,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:35:37,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:35:30" (1/3) ... [2019-10-07 14:35:37,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1756b9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:35:37, skipping insertion in model container [2019-10-07 14:35:37,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:35:31" (2/3) ... [2019-10-07 14:35:37,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1756b9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:35:37, skipping insertion in model container [2019-10-07 14:35:37,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:35:37" (3/3) ... [2019-10-07 14:35:37,048 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product31.cil.c [2019-10-07 14:35:37,058 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:35:37,067 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:35:37,078 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:35:37,109 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:35:37,109 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:35:37,109 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:35:37,109 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:35:37,109 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:35:37,110 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:35:37,110 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:35:37,110 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:35:37,141 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states. [2019-10-07 14:35:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:35:37,165 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:37,166 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:37,168 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:37,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:37,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1503407421, now seen corresponding path program 1 times [2019-10-07 14:35:37,184 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:37,185 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:37,185 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:37,185 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:37,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:35:37,838 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:37,839 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:37,839 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:35:37,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:35:37,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:35:37,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:35:37,863 INFO L87 Difference]: Start difference. First operand 592 states. Second operand 2 states. [2019-10-07 14:35:37,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:37,933 INFO L93 Difference]: Finished difference Result 495 states and 726 transitions. [2019-10-07 14:35:37,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:35:37,935 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-10-07 14:35:37,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:37,960 INFO L225 Difference]: With dead ends: 495 [2019-10-07 14:35:37,960 INFO L226 Difference]: Without dead ends: 461 [2019-10-07 14:35:37,965 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:35:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-10-07 14:35:38,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2019-10-07 14:35:38,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-10-07 14:35:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 675 transitions. [2019-10-07 14:35:38,111 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 675 transitions. Word has length 112 [2019-10-07 14:35:38,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:38,114 INFO L462 AbstractCegarLoop]: Abstraction has 461 states and 675 transitions. [2019-10-07 14:35:38,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:35:38,114 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 675 transitions. [2019-10-07 14:35:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 14:35:38,124 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:38,125 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:38,125 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:38,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:38,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1509585309, now seen corresponding path program 1 times [2019-10-07 14:35:38,126 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:38,126 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:38,126 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:38,126 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:38,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:35:38,643 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:38,643 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:38,644 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:35:38,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:35:38,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:35:38,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:38,647 INFO L87 Difference]: Start difference. First operand 461 states and 675 transitions. Second operand 7 states. [2019-10-07 14:35:42,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:42,488 INFO L93 Difference]: Finished difference Result 1310 states and 1962 transitions. [2019-10-07 14:35:42,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:35:42,496 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-07 14:35:42,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:42,505 INFO L225 Difference]: With dead ends: 1310 [2019-10-07 14:35:42,505 INFO L226 Difference]: Without dead ends: 891 [2019-10-07 14:35:42,513 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:35:42,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2019-10-07 14:35:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 866. [2019-10-07 14:35:42,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2019-10-07 14:35:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1293 transitions. [2019-10-07 14:35:42,615 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1293 transitions. Word has length 113 [2019-10-07 14:35:42,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:42,616 INFO L462 AbstractCegarLoop]: Abstraction has 866 states and 1293 transitions. [2019-10-07 14:35:42,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:35:42,616 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1293 transitions. [2019-10-07 14:35:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:35:42,623 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:42,623 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:42,624 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:42,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:42,624 INFO L82 PathProgramCache]: Analyzing trace with hash 210108482, now seen corresponding path program 1 times [2019-10-07 14:35:42,624 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:42,624 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:42,625 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:42,625 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:42,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:42,810 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:35:42,810 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:42,811 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:42,811 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:42,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:42,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:42,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:42,813 INFO L87 Difference]: Start difference. First operand 866 states and 1293 transitions. Second operand 3 states. [2019-10-07 14:35:42,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:42,948 INFO L93 Difference]: Finished difference Result 2472 states and 3759 transitions. [2019-10-07 14:35:42,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:35:42,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-10-07 14:35:42,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:42,964 INFO L225 Difference]: With dead ends: 2472 [2019-10-07 14:35:42,964 INFO L226 Difference]: Without dead ends: 1648 [2019-10-07 14:35:42,971 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 14:35:42,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1648 states. [2019-10-07 14:35:43,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1648 to 1616. [2019-10-07 14:35:43,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1616 states. [2019-10-07 14:35:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2453 transitions. [2019-10-07 14:35:43,184 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2453 transitions. Word has length 117 [2019-10-07 14:35:43,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:43,184 INFO L462 AbstractCegarLoop]: Abstraction has 1616 states and 2453 transitions. [2019-10-07 14:35:43,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:43,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2453 transitions. [2019-10-07 14:35:43,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:35:43,189 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:43,189 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:43,190 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:43,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:43,190 INFO L82 PathProgramCache]: Analyzing trace with hash -2077884368, now seen corresponding path program 1 times [2019-10-07 14:35:43,191 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:43,191 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:43,191 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:43,191 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:43,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:35:43,362 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:43,363 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:43,363 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:43,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:43,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:43,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:43,364 INFO L87 Difference]: Start difference. First operand 1616 states and 2453 transitions. Second operand 3 states. [2019-10-07 14:35:43,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:43,540 INFO L93 Difference]: Finished difference Result 4723 states and 7276 transitions. [2019-10-07 14:35:43,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:35:43,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-07 14:35:43,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:43,570 INFO L225 Difference]: With dead ends: 4723 [2019-10-07 14:35:43,571 INFO L226 Difference]: Without dead ends: 3150 [2019-10-07 14:35:43,582 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 14:35:43,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2019-10-07 14:35:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3117. [2019-10-07 14:35:43,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3117 states. [2019-10-07 14:35:43,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 4795 transitions. [2019-10-07 14:35:43,770 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 4795 transitions. Word has length 118 [2019-10-07 14:35:43,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:43,772 INFO L462 AbstractCegarLoop]: Abstraction has 3117 states and 4795 transitions. [2019-10-07 14:35:43,772 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:43,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 4795 transitions. [2019-10-07 14:35:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:35:43,777 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:43,778 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:43,778 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:43,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:43,778 INFO L82 PathProgramCache]: Analyzing trace with hash 8785220, now seen corresponding path program 1 times [2019-10-07 14:35:43,778 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:43,779 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:43,779 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:43,779 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:43,972 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:35:43,972 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:43,972 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:43,973 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:43,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:43,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:43,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:43,974 INFO L87 Difference]: Start difference. First operand 3117 states and 4795 transitions. Second operand 3 states. [2019-10-07 14:35:44,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:44,339 INFO L93 Difference]: Finished difference Result 9226 states and 14421 transitions. [2019-10-07 14:35:44,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:35:44,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-07 14:35:44,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:44,409 INFO L225 Difference]: With dead ends: 9226 [2019-10-07 14:35:44,409 INFO L226 Difference]: Without dead ends: 6154 [2019-10-07 14:35:44,430 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 14:35:44,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6154 states. [2019-10-07 14:35:44,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6154 to 6120. [2019-10-07 14:35:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6120 states. [2019-10-07 14:35:44,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6120 states to 6120 states and 9555 transitions. [2019-10-07 14:35:44,925 INFO L78 Accepts]: Start accepts. Automaton has 6120 states and 9555 transitions. Word has length 119 [2019-10-07 14:35:44,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:44,930 INFO L462 AbstractCegarLoop]: Abstraction has 6120 states and 9555 transitions. [2019-10-07 14:35:44,930 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:44,930 INFO L276 IsEmpty]: Start isEmpty. Operand 6120 states and 9555 transitions. [2019-10-07 14:35:44,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:35:44,936 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:44,937 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:44,937 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:44,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:44,938 INFO L82 PathProgramCache]: Analyzing trace with hash 271036914, now seen corresponding path program 1 times [2019-10-07 14:35:44,938 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:44,938 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:44,938 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:44,939 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:45,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:35:45,142 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:45,143 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:45,143 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:45,144 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:45,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:45,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:45,145 INFO L87 Difference]: Start difference. First operand 6120 states and 9555 transitions. Second operand 3 states. [2019-10-07 14:35:45,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:45,767 INFO L93 Difference]: Finished difference Result 18233 states and 29104 transitions. [2019-10-07 14:35:45,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:35:45,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-07 14:35:45,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:45,873 INFO L225 Difference]: With dead ends: 18233 [2019-10-07 14:35:45,873 INFO L226 Difference]: Without dead ends: 12162 [2019-10-07 14:35:45,921 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 14:35:45,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12162 states. [2019-10-07 14:35:46,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12162 to 12127. [2019-10-07 14:35:46,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12127 states. [2019-10-07 14:35:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12127 states to 12127 states and 19351 transitions. [2019-10-07 14:35:46,747 INFO L78 Accepts]: Start accepts. Automaton has 12127 states and 19351 transitions. Word has length 120 [2019-10-07 14:35:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:46,748 INFO L462 AbstractCegarLoop]: Abstraction has 12127 states and 19351 transitions. [2019-10-07 14:35:46,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:46,749 INFO L276 IsEmpty]: Start isEmpty. Operand 12127 states and 19351 transitions. [2019-10-07 14:35:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:35:46,752 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:46,753 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:46,753 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:46,753 INFO L82 PathProgramCache]: Analyzing trace with hash -189091258, now seen corresponding path program 1 times [2019-10-07 14:35:46,754 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:46,754 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:46,754 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:46,754 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:46,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:47,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:35:47,094 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:47,094 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:47,094 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:47,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:47,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:47,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:47,095 INFO L87 Difference]: Start difference. First operand 12127 states and 19351 transitions. Second operand 3 states. [2019-10-07 14:35:47,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:47,481 INFO L93 Difference]: Finished difference Result 12914 states and 20690 transitions. [2019-10-07 14:35:47,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:35:47,481 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-07 14:35:47,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:47,579 INFO L225 Difference]: With dead ends: 12914 [2019-10-07 14:35:47,580 INFO L226 Difference]: Without dead ends: 12901 [2019-10-07 14:35:47,595 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 14:35:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12901 states. [2019-10-07 14:35:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12901 to 12871. [2019-10-07 14:35:48,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12871 states. [2019-10-07 14:35:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12871 states to 12871 states and 20628 transitions. [2019-10-07 14:35:48,327 INFO L78 Accepts]: Start accepts. Automaton has 12871 states and 20628 transitions. Word has length 121 [2019-10-07 14:35:48,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:48,327 INFO L462 AbstractCegarLoop]: Abstraction has 12871 states and 20628 transitions. [2019-10-07 14:35:48,328 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:48,328 INFO L276 IsEmpty]: Start isEmpty. Operand 12871 states and 20628 transitions. [2019-10-07 14:35:48,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 14:35:48,336 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:48,336 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:48,336 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:48,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:48,337 INFO L82 PathProgramCache]: Analyzing trace with hash 795157014, now seen corresponding path program 1 times [2019-10-07 14:35:48,337 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:48,337 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:48,337 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:48,338 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:48,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:49,497 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:49,498 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:49,498 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:49,498 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:35:49,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:35:49,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:35:49,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:35:49,501 INFO L87 Difference]: Start difference. First operand 12871 states and 20628 transitions. Second operand 5 states. [2019-10-07 14:35:50,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:50,089 INFO L93 Difference]: Finished difference Result 25886 states and 42190 transitions. [2019-10-07 14:35:50,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:35:50,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2019-10-07 14:35:50,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:50,175 INFO L225 Difference]: With dead ends: 25886 [2019-10-07 14:35:50,175 INFO L226 Difference]: Without dead ends: 13058 [2019-10-07 14:35:50,244 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:35:50,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13058 states. [2019-10-07 14:35:50,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13058 to 13055. [2019-10-07 14:35:50,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13055 states. [2019-10-07 14:35:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13055 states to 13055 states and 20974 transitions. [2019-10-07 14:35:51,061 INFO L78 Accepts]: Start accepts. Automaton has 13055 states and 20974 transitions. Word has length 186 [2019-10-07 14:35:51,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:51,062 INFO L462 AbstractCegarLoop]: Abstraction has 13055 states and 20974 transitions. [2019-10-07 14:35:51,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:35:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand 13055 states and 20974 transitions. [2019-10-07 14:35:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 14:35:51,074 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:51,075 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:51,075 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:51,076 INFO L82 PathProgramCache]: Analyzing trace with hash 338406242, now seen corresponding path program 1 times [2019-10-07 14:35:51,076 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:51,076 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:51,076 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:51,081 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:51,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:35:51,368 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:51,368 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:51,368 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 14:35:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:52,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 3459 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:35:52,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-07 14:35:52,170 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:52,829 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:35:52,831 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:35:52,832 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:35:52,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:35:52,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:35:52,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:35:52,833 INFO L87 Difference]: Start difference. First operand 13055 states and 20974 transitions. Second operand 4 states. [2019-10-07 14:35:53,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:53,806 INFO L93 Difference]: Finished difference Result 27393 states and 45200 transitions. [2019-10-07 14:35:53,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:35:53,807 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2019-10-07 14:35:53,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:53,915 INFO L225 Difference]: With dead ends: 27393 [2019-10-07 14:35:53,916 INFO L226 Difference]: Without dead ends: 14381 [2019-10-07 14:35:53,970 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 389 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:35:53,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14381 states. [2019-10-07 14:35:54,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14381 to 14381. [2019-10-07 14:35:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14381 states. [2019-10-07 14:35:54,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14381 states to 14381 states and 23456 transitions. [2019-10-07 14:35:54,895 INFO L78 Accepts]: Start accepts. Automaton has 14381 states and 23456 transitions. Word has length 195 [2019-10-07 14:35:54,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:54,896 INFO L462 AbstractCegarLoop]: Abstraction has 14381 states and 23456 transitions. [2019-10-07 14:35:54,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:35:54,897 INFO L276 IsEmpty]: Start isEmpty. Operand 14381 states and 23456 transitions. [2019-10-07 14:35:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-07 14:35:54,910 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:54,910 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:55,436 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:55,436 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:55,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:55,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1200519654, now seen corresponding path program 1 times [2019-10-07 14:35:55,437 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:55,437 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:55,437 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:55,437 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:55,741 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:35:55,742 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:55,742 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:55,742 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 14:35:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:56,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 3464 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:35:56,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 14:35:56,629 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:57,125 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:35:57,126 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:35:57,126 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:35:57,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:35:57,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:35:57,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:57,128 INFO L87 Difference]: Start difference. First operand 14381 states and 23456 transitions. Second operand 4 states. [2019-10-07 14:35:58,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:58,511 INFO L93 Difference]: Finished difference Result 30045 states and 50130 transitions. [2019-10-07 14:35:58,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:35:58,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 200 [2019-10-07 14:35:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:58,590 INFO L225 Difference]: With dead ends: 30045 [2019-10-07 14:35:58,590 INFO L226 Difference]: Without dead ends: 15707 [2019-10-07 14:35:58,648 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:35:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15707 states. [2019-10-07 14:35:59,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15707 to 15707. [2019-10-07 14:35:59,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15707 states. [2019-10-07 14:35:59,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15707 states to 15707 states and 25938 transitions. [2019-10-07 14:35:59,357 INFO L78 Accepts]: Start accepts. Automaton has 15707 states and 25938 transitions. Word has length 200 [2019-10-07 14:35:59,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:59,359 INFO L462 AbstractCegarLoop]: Abstraction has 15707 states and 25938 transitions. [2019-10-07 14:35:59,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:35:59,359 INFO L276 IsEmpty]: Start isEmpty. Operand 15707 states and 25938 transitions. [2019-10-07 14:35:59,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-07 14:35:59,367 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:59,368 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:59,585 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:59,585 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:59,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:59,586 INFO L82 PathProgramCache]: Analyzing trace with hash 421800790, now seen corresponding path program 1 times [2019-10-07 14:35:59,586 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:59,586 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:59,586 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:59,586 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:59,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:35:59,801 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:59,801 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:59,801 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 14:36:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:00,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 3468 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:36:00,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:00,842 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:36:00,842 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:01,349 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:36:01,349 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:36:01,350 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:36:01,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:36:01,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:36:01,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:36:01,351 INFO L87 Difference]: Start difference. First operand 15707 states and 25938 transitions. Second operand 4 states. [2019-10-07 14:36:01,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:01,893 INFO L93 Difference]: Finished difference Result 32697 states and 55060 transitions. [2019-10-07 14:36:01,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:36:01,894 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 204 [2019-10-07 14:36:01,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:01,981 INFO L225 Difference]: With dead ends: 32697 [2019-10-07 14:36:01,981 INFO L226 Difference]: Without dead ends: 17033 [2019-10-07 14:36:02,026 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 405 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:36:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17033 states. [2019-10-07 14:36:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17033 to 17033. [2019-10-07 14:36:02,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17033 states. [2019-10-07 14:36:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17033 states to 17033 states and 28420 transitions. [2019-10-07 14:36:02,629 INFO L78 Accepts]: Start accepts. Automaton has 17033 states and 28420 transitions. Word has length 204 [2019-10-07 14:36:02,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:02,630 INFO L462 AbstractCegarLoop]: Abstraction has 17033 states and 28420 transitions. [2019-10-07 14:36:02,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:36:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 17033 states and 28420 transitions. [2019-10-07 14:36:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-07 14:36:02,638 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:02,638 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:36:02,846 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:02,846 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:02,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:02,847 INFO L82 PathProgramCache]: Analyzing trace with hash -2107958334, now seen corresponding path program 1 times [2019-10-07 14:36:02,847 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:02,847 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:02,847 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:02,848 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:02,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:03,101 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:36:03,102 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:03,102 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:03,102 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 14:36:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:03,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 3471 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:36:03,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:03,992 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 14:36:03,992 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:04,417 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:36:04,417 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:36:04,418 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:36:04,421 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:36:04,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:36:04,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:36:04,422 INFO L87 Difference]: Start difference. First operand 17033 states and 28420 transitions. Second operand 4 states. [2019-10-07 14:36:04,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:04,917 INFO L93 Difference]: Finished difference Result 35349 states and 59990 transitions. [2019-10-07 14:36:04,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:36:04,918 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2019-10-07 14:36:04,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:05,008 INFO L225 Difference]: With dead ends: 35349 [2019-10-07 14:36:05,008 INFO L226 Difference]: Without dead ends: 18359 [2019-10-07 14:36:05,051 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 411 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:36:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18359 states. [2019-10-07 14:36:06,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18359 to 18359. [2019-10-07 14:36:06,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18359 states. [2019-10-07 14:36:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18359 states to 18359 states and 30902 transitions. [2019-10-07 14:36:06,601 INFO L78 Accepts]: Start accepts. Automaton has 18359 states and 30902 transitions. Word has length 207 [2019-10-07 14:36:06,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:06,602 INFO L462 AbstractCegarLoop]: Abstraction has 18359 states and 30902 transitions. [2019-10-07 14:36:06,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:36:06,602 INFO L276 IsEmpty]: Start isEmpty. Operand 18359 states and 30902 transitions. [2019-10-07 14:36:06,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-07 14:36:06,611 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:06,611 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:06,821 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:06,822 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:06,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:06,822 INFO L82 PathProgramCache]: Analyzing trace with hash 684535152, now seen corresponding path program 1 times [2019-10-07 14:36:06,822 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:06,823 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:06,823 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:06,823 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:36:07,090 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:07,091 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:07,091 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 14:36:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:07,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 3467 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 14:36:07,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:07,936 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:36:07,937 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:36:08,648 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:36:08,648 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [9] total 17 [2019-10-07 14:36:08,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:36:08,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:36:08,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:36:08,650 INFO L87 Difference]: Start difference. First operand 18359 states and 30902 transitions. Second operand 10 states. [2019-10-07 14:36:11,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:11,186 INFO L93 Difference]: Finished difference Result 43264 states and 72287 transitions. [2019-10-07 14:36:11,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:36:11,186 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 209 [2019-10-07 14:36:11,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:11,297 INFO L225 Difference]: With dead ends: 43264 [2019-10-07 14:36:11,297 INFO L226 Difference]: Without dead ends: 24963 [2019-10-07 14:36:11,338 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 413 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:36:11,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24963 states. [2019-10-07 14:36:12,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24963 to 24659. [2019-10-07 14:36:12,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24659 states. [2019-10-07 14:36:12,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24659 states to 24659 states and 40910 transitions. [2019-10-07 14:36:12,204 INFO L78 Accepts]: Start accepts. Automaton has 24659 states and 40910 transitions. Word has length 209 [2019-10-07 14:36:12,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:12,205 INFO L462 AbstractCegarLoop]: Abstraction has 24659 states and 40910 transitions. [2019-10-07 14:36:12,205 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:36:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 24659 states and 40910 transitions. [2019-10-07 14:36:12,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-07 14:36:12,221 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:12,221 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:12,441 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:12,441 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:12,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:12,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1061923308, now seen corresponding path program 1 times [2019-10-07 14:36:12,442 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:12,442 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:12,442 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:12,443 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:12,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:12,697 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:36:12,697 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:12,697 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:12,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:13,638 INFO L256 TraceCheckSpWp]: Trace formula consists of 3472 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-07 14:36:13,647 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:13,808 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2019-10-07 14:36:13,808 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:14,300 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-10-07 14:36:14,717 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:14,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:14,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:15,024 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:15,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:15,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:15,126 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:15,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:15,198 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:15,275 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2019-10-07 14:36:15,275 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:36:15,275 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [9] total 21 [2019-10-07 14:36:15,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 14:36:15,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 14:36:15,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:36:15,277 INFO L87 Difference]: Start difference. First operand 24659 states and 40910 transitions. Second operand 14 states. [2019-10-07 14:36:23,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:23,882 INFO L93 Difference]: Finished difference Result 57613 states and 97728 transitions. [2019-10-07 14:36:23,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-07 14:36:23,883 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 212 [2019-10-07 14:36:23,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:24,052 INFO L225 Difference]: With dead ends: 57613 [2019-10-07 14:36:24,052 INFO L226 Difference]: Without dead ends: 32998 [2019-10-07 14:36:24,141 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 415 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=829, Unknown=0, NotChecked=0, Total=992 [2019-10-07 14:36:24,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32998 states. [2019-10-07 14:36:25,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32998 to 32132. [2019-10-07 14:36:25,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32132 states. [2019-10-07 14:36:27,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32132 states to 32132 states and 51946 transitions. [2019-10-07 14:36:27,136 INFO L78 Accepts]: Start accepts. Automaton has 32132 states and 51946 transitions. Word has length 212 [2019-10-07 14:36:27,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:27,137 INFO L462 AbstractCegarLoop]: Abstraction has 32132 states and 51946 transitions. [2019-10-07 14:36:27,137 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 14:36:27,137 INFO L276 IsEmpty]: Start isEmpty. Operand 32132 states and 51946 transitions. [2019-10-07 14:36:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-07 14:36:27,149 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:27,149 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:27,358 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:27,358 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:27,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:27,359 INFO L82 PathProgramCache]: Analyzing trace with hash -481731481, now seen corresponding path program 1 times [2019-10-07 14:36:27,359 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:27,359 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:27,359 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:27,360 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:27,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:36:27,607 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:27,607 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:27,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:28,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:28,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 3473 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:36:28,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:36:28,493 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:36:29,001 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:36:29,001 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [9] total 16 [2019-10-07 14:36:29,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:36:29,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:36:29,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:36:29,002 INFO L87 Difference]: Start difference. First operand 32132 states and 51946 transitions. Second operand 9 states. [2019-10-07 14:36:30,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:30,734 INFO L93 Difference]: Finished difference Result 32909 states and 54322 transitions. [2019-10-07 14:36:30,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:36:30,734 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 212 [2019-10-07 14:36:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:30,921 INFO L225 Difference]: With dead ends: 32909 [2019-10-07 14:36:30,922 INFO L226 Difference]: Without dead ends: 32791 [2019-10-07 14:36:30,946 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 421 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:36:30,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32791 states. [2019-10-07 14:36:31,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32791 to 32300. [2019-10-07 14:36:31,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32300 states. [2019-10-07 14:36:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32300 states to 32300 states and 52240 transitions. [2019-10-07 14:36:32,010 INFO L78 Accepts]: Start accepts. Automaton has 32300 states and 52240 transitions. Word has length 212 [2019-10-07 14:36:32,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:32,010 INFO L462 AbstractCegarLoop]: Abstraction has 32300 states and 52240 transitions. [2019-10-07 14:36:32,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:36:32,011 INFO L276 IsEmpty]: Start isEmpty. Operand 32300 states and 52240 transitions. [2019-10-07 14:36:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-07 14:36:32,025 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:32,025 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:32,234 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:32,235 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:32,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:32,235 INFO L82 PathProgramCache]: Analyzing trace with hash -800740330, now seen corresponding path program 1 times [2019-10-07 14:36:32,238 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:32,238 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:32,238 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:32,238 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:32,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:32,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:36:32,456 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:32,456 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:33,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:33,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 3488 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:36:33,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:33,364 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:36:33,364 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:33,779 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:36:33,780 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:36:33,780 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [9] total 12 [2019-10-07 14:36:33,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:36:33,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:36:33,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:36:33,781 INFO L87 Difference]: Start difference. First operand 32300 states and 52240 transitions. Second operand 5 states. [2019-10-07 14:36:34,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:36:34,416 INFO L93 Difference]: Finished difference Result 32418 states and 52372 transitions. [2019-10-07 14:36:34,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:36:34,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-10-07 14:36:34,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:36:34,564 INFO L225 Difference]: With dead ends: 32418 [2019-10-07 14:36:34,565 INFO L226 Difference]: Without dead ends: 32300 [2019-10-07 14:36:34,586 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 435 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:36:34,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32300 states. [2019-10-07 14:36:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32300 to 32300. [2019-10-07 14:36:35,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32300 states. [2019-10-07 14:36:35,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32300 states to 32300 states and 52144 transitions. [2019-10-07 14:36:35,611 INFO L78 Accepts]: Start accepts. Automaton has 32300 states and 52144 transitions. Word has length 217 [2019-10-07 14:36:35,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:36:35,612 INFO L462 AbstractCegarLoop]: Abstraction has 32300 states and 52144 transitions. [2019-10-07 14:36:35,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:36:35,613 INFO L276 IsEmpty]: Start isEmpty. Operand 32300 states and 52144 transitions. [2019-10-07 14:36:35,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-07 14:36:35,627 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:36:35,628 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:35,836 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:35,837 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:36:35,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:36:35,838 INFO L82 PathProgramCache]: Analyzing trace with hash 202435014, now seen corresponding path program 1 times [2019-10-07 14:36:35,838 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:36:35,838 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:35,838 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:35,838 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:36:35,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:36:35,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-10-07 14:36:36,079 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:36:36,079 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:36:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:36:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:36:36,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 3531 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:36:36,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:36:37,053 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:36:37,053 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:36:37,536 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-10-07 14:36:37,997 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:38,009 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:38,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:38,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:38,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:38,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:38,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:38,056 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:36:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-10-07 14:36:38,193 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:36:38,264 INFO L162 IcfgInterpreter]: Started Sifa with 196 locations of interest [2019-10-07 14:36:38,264 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:36:38,276 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:36:38,287 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:36:38,288 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:37:23,517 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 764 [2019-10-07 14:37:28,555 WARN L191 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:37:28,924 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:37:29,205 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:37:30,704 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:37:31,248 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:37:31,737 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:37:32,185 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:37:32,701 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:37:33,616 WARN L191 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 1042 DAG size of output: 1040 [2019-10-07 14:37:34,078 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:37:34,578 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:37:35,026 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:37:35,481 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:37:35,973 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:37:35,993 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 391 for LOIs [2019-10-07 14:37:36,251 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:37:36,354 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:37:36,889 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:37:36,891 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1088 for LOIs [2019-10-07 14:37:37,321 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:37,811 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:37,937 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:38,673 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:39,126 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:39,554 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:39,682 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:40,433 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:40,898 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:41,326 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:41,449 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:42,184 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:43,111 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 1262 DAG size of output: 1088 [2019-10-07 14:37:43,539 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:43,675 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:44,405 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:44,850 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:45,290 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:45,409 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:46,150 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:46,578 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:47,009 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:47,127 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:47,875 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:48,315 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:48,747 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:48,866 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:49,602 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:50,033 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:50,463 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:50,599 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:51,336 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:51,771 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:52,200 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:52,322 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:53,055 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:53,513 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:53,944 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:54,062 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:54,799 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:55,225 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:55,652 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:55,778 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:56,510 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:56,939 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:57,368 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:57,486 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:58,216 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:58,650 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:59,094 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:59,213 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:59,944 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:01,399 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:02,136 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:02,335 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:03,085 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:04,400 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:05,139 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:05,272 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:06,009 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:06,748 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:07,478 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:07,597 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:08,329 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:09,872 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:10,634 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:10,762 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:11,502 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:12,853 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:38:13,583 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:13,709 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:14,450 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:15,781 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:38:16,520 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:16,652 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:17,397 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:18,138 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:18,867 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:18,989 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:19,725 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:20,465 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:21,199 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:21,339 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:22,075 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:38:23,132 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:23,873 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:24,001 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:24,735 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:38:26,054 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:38:26,798 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:26,947 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:27,692 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:38:28,434 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:29,186 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:29,309 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:30,049 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:38:31,388 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:32,137 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:32,267 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:32,999 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:34,330 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:35,072 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:35,197 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:35,930 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:36,667 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:37,405 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:37,526 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:38,258 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:39,027 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:39,767 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:39,893 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:40,632 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:41,388 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:42,135 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:42,260 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:42,998 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:43,739 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:44,477 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:44,598 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:45,338 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:46,603 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:38:47,351 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:47,479 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:48,221 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:49,553 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:38:50,293 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:50,420 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:51,166 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:38:52,525 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:53,267 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:53,393 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:54,133 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:55,466 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:56,206 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:56,332 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:57,069 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:57,820 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:58,561 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:58,689 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:59,429 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:00,787 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:01,536 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:01,666 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:02,421 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:03,751 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:04,489 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:04,615 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:05,352 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:06,093 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:06,830 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:06,949 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:07,693 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:08,455 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:09,200 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:09,327 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:10,071 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:11,412 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:39:12,156 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:12,285 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:13,035 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:14,368 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:39:15,111 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:15,232 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:15,983 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:17,352 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1264 [2019-10-07 14:39:18,110 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:18,240 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:19,015 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:20,366 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1266 [2019-10-07 14:39:21,123 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:21,251 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:22,006 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:23,406 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1266 [2019-10-07 14:39:24,161 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:24,289 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:25,043 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:26,412 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1266 [2019-10-07 14:39:27,167 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:27,432 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:28,271 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:29,645 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:30,395 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:30,522 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:31,261 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:32,620 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:33,377 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:33,518 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:34,262 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:35,012 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:35,759 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:35,889 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:36,641 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:37,421 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:38,186 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:38,318 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:39,073 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:40,446 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:39:41,195 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:41,339 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:42,096 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:43,456 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:39:44,200 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:44,322 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:45,074 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:46,352 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:39:47,100 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:47,229 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:47,980 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:49,367 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:50,116 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:50,243 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:50,991 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:52,345 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:53,095 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:53,219 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:53,971 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:54,721 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:55,481 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:55,601 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:56,349 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:57,720 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:39:58,479 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:58,618 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:59,375 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:00,737 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:40:01,498 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:40:01,624 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:40:02,380 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:03,750 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:40:04,488 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:04,632 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:05,370 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:06,869 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:40:07,610 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:07,734 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:08,480 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:09,234 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:09,973 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:10,092 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:10,833 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:11,605 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:12,348 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:12,474 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:40:13,217 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:13,981 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:14,726 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:14,860 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:40:15,606 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:16,354 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:17,109 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:17,230 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:40:17,970 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:19,316 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1264 [2019-10-07 14:40:20,067 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:20,201 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:40:20,943 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:40:22,284 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1266 [2019-10-07 14:40:23,033 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:40:23,166 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:40:23,912 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:40:25,425 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:40:26,166 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:26,290 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:27,035 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:28,377 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:40:29,112 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:29,254 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:29,998 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:30,004 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1114 for LOIs [2019-10-07 14:40:30,473 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:40:30,947 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:40:31,079 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:31,813 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:32,334 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:32,824 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:32,944 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:33,676 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:34,535 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 1262 DAG size of output: 1124 [2019-10-07 14:40:35,023 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:35,147 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:35,881 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:36,380 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:36,868 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:36,987 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:37,723 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:38,211 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:38,699 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:38,818 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:39,559 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:40,049 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:40,539 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:40,658 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:41,394 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:41,695 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:40:41,696 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:40:41,701 INFO L168 Benchmark]: Toolchain (without parser) took 310985.11 ms. Allocated memory was 146.3 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 99.8 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 360.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:41,702 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 14:40:41,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1111.00 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 99.6 MB in the beginning and 142.7 MB in the end (delta: -43.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:41,702 INFO L168 Benchmark]: Boogie Preprocessor took 245.62 ms. Allocated memory is still 204.5 MB. Free memory was 142.7 MB in the beginning and 133.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:41,703 INFO L168 Benchmark]: RCFGBuilder took 4963.49 ms. Allocated memory was 204.5 MB in the beginning and 292.6 MB in the end (delta: 88.1 MB). Free memory was 133.1 MB in the beginning and 176.5 MB in the end (delta: -43.4 MB). Peak memory consumption was 143.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:41,703 INFO L168 Benchmark]: TraceAbstraction took 304658.50 ms. Allocated memory was 292.6 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 176.5 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 290.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:41,705 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1111.00 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 99.6 MB in the beginning and 142.7 MB in the end (delta: -43.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 245.62 ms. Allocated memory is still 204.5 MB. Free memory was 142.7 MB in the beginning and 133.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4963.49 ms. Allocated memory was 204.5 MB in the beginning and 292.6 MB in the end (delta: 88.1 MB). Free memory was 133.1 MB in the beginning and 176.5 MB in the end (delta: -43.4 MB). Peak memory consumption was 143.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 304658.50 ms. Allocated memory was 292.6 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 176.5 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 290.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...