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_spec2_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:18:40,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:18:40,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:18:40,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:18:40,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:18:40,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:18:40,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:18:40,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:18:40,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:18:40,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:18:40,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:18:40,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:18:40,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:18:40,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:18:40,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:18:40,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:18:40,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:18:40,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:18:40,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:18:40,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:18:40,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:18:40,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:18:40,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:18:40,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:18:40,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:18:40,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:18:40,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:18:40,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:18:40,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:18:40,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:18:40,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:18:40,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:18:40,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:18:40,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:18:40,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:18:40,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:18:40,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:18:40,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:18:40,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:18:40,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:18:40,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:18:40,387 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 14:18:40,405 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:18:40,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:18:40,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:18:40,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:18:40,406 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:18:40,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:18:40,407 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:18:40,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:18:40,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:18:40,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:18:40,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:18:40,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:18:40,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:18:40,408 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:18:40,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:18:40,408 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:18:40,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:18:40,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:18:40,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:18:40,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:18:40,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:18:40,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:18:40,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:18:40,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:18:40,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:18:40,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:18:40,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:18:40,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:18:40,411 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 14:18:40,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:18:40,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:18:40,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:18:40,721 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:18:40,721 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:18:40,722 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2019-10-07 14:18:40,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/773e9a36d/ecb762de79b34aa0926a30963a488044/FLAG71a25b510 [2019-10-07 14:18:41,388 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:18:41,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product23.cil.c [2019-10-07 14:18:41,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/773e9a36d/ecb762de79b34aa0926a30963a488044/FLAG71a25b510 [2019-10-07 14:18:41,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/773e9a36d/ecb762de79b34aa0926a30963a488044 [2019-10-07 14:18:41,605 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:18:41,607 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:18:41,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:18:41,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:18:41,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:18:41,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:18:41" (1/1) ... [2019-10-07 14:18:41,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a8eca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:41, skipping insertion in model container [2019-10-07 14:18:41,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:18:41" (1/1) ... [2019-10-07 14:18:41,626 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:18:41,714 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:18:42,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:18:42,345 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:18:42,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:18:42,602 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:18:42,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42 WrapperNode [2019-10-07 14:18:42,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:18:42,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:18:42,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:18:42,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:18:42,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42" (1/1) ... [2019-10-07 14:18:42,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42" (1/1) ... [2019-10-07 14:18:42,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42" (1/1) ... [2019-10-07 14:18:42,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42" (1/1) ... [2019-10-07 14:18:42,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42" (1/1) ... [2019-10-07 14:18:42,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42" (1/1) ... [2019-10-07 14:18:42,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42" (1/1) ... [2019-10-07 14:18:42,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:18:42,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:18:42,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:18:42,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:18:42,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42" (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 14:18:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:18:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:18:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:18:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:18:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:18:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:18:42,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:18:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:18:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:18:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:18:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:18:42,897 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:18:42,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:18:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:18:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:18:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:18:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:18:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:18:42,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:18:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:18:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:18:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:18:42,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:18:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:18:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:18:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:18:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:18:42,901 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:18:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:18:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:18:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:18:42,902 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:18:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:18:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:18:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:18:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:18:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:18:42,903 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:18:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:18:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:18:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:18:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:18:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:18:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:18:42,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:18:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:18:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:18:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:18:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:18:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:18:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:18:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:18:42,905 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:18:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:18:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:18:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:18:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:18:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:18:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:18:42,906 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:18:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:18:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:18:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:18:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:18:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:18:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:18:42,907 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:18:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:18:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:18:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:18:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:18:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:18:42,908 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:18:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:18:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:18:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:18:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:18:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:18:42,909 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:18:42,910 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:18:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:18:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:18:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:18:42,910 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:18:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:18:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:18:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:18:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:18:42,911 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:18:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:18:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:18:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:18:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:18:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:18:42,912 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:18:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:18:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:18:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:18:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:18:42,913 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:18:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:18:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:18:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:18:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:18:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:18:42,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:18:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:18:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:18:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:18:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:18:42,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:18:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:18:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:18:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:18:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:18:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:18:42,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:18:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:18:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:18:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:18:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:18:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:18:42,917 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:18:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:18:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:18:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:18:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:18:42,918 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:18:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:18:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:18:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:18:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:18:42,919 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:18:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:18:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:18:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:18:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:18:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:18:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:18:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:18:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:18:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:18:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:18:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:18:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:18:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:18:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:18:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:18:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:18:42,922 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:18:42,923 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:18:42,923 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:18:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:18:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:18:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:18:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:18:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:18:42,924 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:18:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:18:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:18:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:18:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:18:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:18:42,925 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:18:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:18:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:18:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:18:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:18:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:18:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:18:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:18:42,926 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:18:42,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:18:42,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:18:42,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:18:47,430 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:18:47,431 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:18:47,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:18:47 BoogieIcfgContainer [2019-10-07 14:18:47,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:18:47,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:18:47,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:18:47,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:18:47,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:18:41" (1/3) ... [2019-10-07 14:18:47,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5408ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:18:47, skipping insertion in model container [2019-10-07 14:18:47,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:42" (2/3) ... [2019-10-07 14:18:47,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5408ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:18:47, skipping insertion in model container [2019-10-07 14:18:47,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:18:47" (3/3) ... [2019-10-07 14:18:47,440 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product23.cil.c [2019-10-07 14:18:47,449 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:18:47,458 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:18:47,469 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:18:47,499 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:18:47,500 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:18:47,500 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:18:47,500 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:18:47,500 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:18:47,500 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:18:47,501 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:18:47,501 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:18:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states. [2019-10-07 14:18:47,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:18:47,557 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:47,559 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 14:18:47,562 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:47,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:47,567 INFO L82 PathProgramCache]: Analyzing trace with hash -116246569, now seen corresponding path program 1 times [2019-10-07 14:18:47,574 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:47,574 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:47,574 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:47,575 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:47,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:48,194 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 14:18:48,195 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:48,196 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:48,196 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:18:48,200 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:18:48,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:18:48,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:18:48,227 INFO L87 Difference]: Start difference. First operand 594 states. Second operand 2 states. [2019-10-07 14:18:48,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:48,294 INFO L93 Difference]: Finished difference Result 497 states and 735 transitions. [2019-10-07 14:18:48,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:18:48,295 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-10-07 14:18:48,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:48,329 INFO L225 Difference]: With dead ends: 497 [2019-10-07 14:18:48,329 INFO L226 Difference]: Without dead ends: 463 [2019-10-07 14:18:48,336 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 14:18:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2019-10-07 14:18:48,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2019-10-07 14:18:48,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-10-07 14:18:48,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 684 transitions. [2019-10-07 14:18:48,450 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 684 transitions. Word has length 112 [2019-10-07 14:18:48,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:48,452 INFO L462 AbstractCegarLoop]: Abstraction has 463 states and 684 transitions. [2019-10-07 14:18:48,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:18:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 684 transitions. [2019-10-07 14:18:48,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 14:18:48,461 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:48,461 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 14:18:48,461 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:48,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:48,462 INFO L82 PathProgramCache]: Analyzing trace with hash -207245627, now seen corresponding path program 1 times [2019-10-07 14:18:48,462 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:48,462 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:48,463 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:48,463 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:48,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:48,775 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 14:18:48,775 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:48,776 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:48,776 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:18:48,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:18:48,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:18:48,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:18:48,782 INFO L87 Difference]: Start difference. First operand 463 states and 684 transitions. Second operand 7 states. [2019-10-07 14:18:52,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:52,428 INFO L93 Difference]: Finished difference Result 1316 states and 1989 transitions. [2019-10-07 14:18:52,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:18:52,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-07 14:18:52,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:52,440 INFO L225 Difference]: With dead ends: 1316 [2019-10-07 14:18:52,441 INFO L226 Difference]: Without dead ends: 895 [2019-10-07 14:18:52,448 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 14:18:52,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2019-10-07 14:18:52,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 870. [2019-10-07 14:18:52,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 870 states. [2019-10-07 14:18:52,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1311 transitions. [2019-10-07 14:18:52,525 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1311 transitions. Word has length 113 [2019-10-07 14:18:52,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:52,525 INFO L462 AbstractCegarLoop]: Abstraction has 870 states and 1311 transitions. [2019-10-07 14:18:52,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:18:52,526 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1311 transitions. [2019-10-07 14:18:52,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:18:52,532 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:52,532 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 14:18:52,533 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:52,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:52,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2005734008, now seen corresponding path program 1 times [2019-10-07 14:18:52,533 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:52,534 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:52,534 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:52,534 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:52,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:52,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:52,746 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 14:18:52,746 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:52,746 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:52,747 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:18:52,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:18:52,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:18:52,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:18:52,748 INFO L87 Difference]: Start difference. First operand 870 states and 1311 transitions. Second operand 4 states. [2019-10-07 14:18:54,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:54,536 INFO L93 Difference]: Finished difference Result 2594 states and 4006 transitions. [2019-10-07 14:18:54,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:18:54,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-10-07 14:18:54,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:54,556 INFO L225 Difference]: With dead ends: 2594 [2019-10-07 14:18:54,557 INFO L226 Difference]: Without dead ends: 1766 [2019-10-07 14:18:54,564 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:18:54,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2019-10-07 14:18:54,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1668. [2019-10-07 14:18:54,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2019-10-07 14:18:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2561 transitions. [2019-10-07 14:18:54,714 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2561 transitions. Word has length 117 [2019-10-07 14:18:54,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:54,714 INFO L462 AbstractCegarLoop]: Abstraction has 1668 states and 2561 transitions. [2019-10-07 14:18:54,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:18:54,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2561 transitions. [2019-10-07 14:18:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:18:54,720 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:54,720 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 14:18:54,721 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:54,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:54,721 INFO L82 PathProgramCache]: Analyzing trace with hash -2049808782, now seen corresponding path program 1 times [2019-10-07 14:18:54,721 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:54,722 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:54,722 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:54,722 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:54,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:54,953 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 14:18:54,953 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:54,954 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:54,954 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:18:54,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:18:54,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:18:54,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:18:54,956 INFO L87 Difference]: Start difference. First operand 1668 states and 2561 transitions. Second operand 4 states. [2019-10-07 14:18:56,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:56,832 INFO L93 Difference]: Finished difference Result 4935 states and 7738 transitions. [2019-10-07 14:18:56,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:18:56,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-10-07 14:18:56,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:56,861 INFO L225 Difference]: With dead ends: 4935 [2019-10-07 14:18:56,861 INFO L226 Difference]: Without dead ends: 3310 [2019-10-07 14:18:56,872 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:18:56,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2019-10-07 14:18:57,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 3189. [2019-10-07 14:18:57,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3189 states. [2019-10-07 14:18:57,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3189 states to 3189 states and 4962 transitions. [2019-10-07 14:18:57,101 INFO L78 Accepts]: Start accepts. Automaton has 3189 states and 4962 transitions. Word has length 118 [2019-10-07 14:18:57,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:57,102 INFO L462 AbstractCegarLoop]: Abstraction has 3189 states and 4962 transitions. [2019-10-07 14:18:57,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:18:57,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3189 states and 4962 transitions. [2019-10-07 14:18:57,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:18:57,107 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:57,107 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 14:18:57,108 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:57,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:57,109 INFO L82 PathProgramCache]: Analyzing trace with hash 878844426, now seen corresponding path program 1 times [2019-10-07 14:18:57,109 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:57,109 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:57,109 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:57,110 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:57,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:57,345 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 14:18:57,345 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:57,345 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:57,346 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:18:57,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:18:57,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:18:57,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:18:57,347 INFO L87 Difference]: Start difference. First operand 3189 states and 4962 transitions. Second operand 4 states. [2019-10-07 14:18:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:59,343 INFO L93 Difference]: Finished difference Result 9550 states and 15278 transitions. [2019-10-07 14:18:59,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:18:59,344 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-10-07 14:18:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:59,402 INFO L225 Difference]: With dead ends: 9550 [2019-10-07 14:18:59,403 INFO L226 Difference]: Without dead ends: 6406 [2019-10-07 14:18:59,428 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:18:59,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6406 states. [2019-10-07 14:18:59,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6406 to 6240. [2019-10-07 14:18:59,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6240 states. [2019-10-07 14:18:59,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6240 states to 6240 states and 9880 transitions. [2019-10-07 14:18:59,811 INFO L78 Accepts]: Start accepts. Automaton has 6240 states and 9880 transitions. Word has length 119 [2019-10-07 14:18:59,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:59,812 INFO L462 AbstractCegarLoop]: Abstraction has 6240 states and 9880 transitions. [2019-10-07 14:18:59,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:18:59,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6240 states and 9880 transitions. [2019-10-07 14:18:59,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:18:59,816 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:59,816 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 14:18:59,817 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:59,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:59,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1472784564, now seen corresponding path program 1 times [2019-10-07 14:18:59,819 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:59,820 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:59,820 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:59,820 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:59,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:00,000 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 14:19:00,001 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:00,001 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:00,003 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:00,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:00,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:00,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:00,005 INFO L87 Difference]: Start difference. First operand 6240 states and 9880 transitions. Second operand 4 states. [2019-10-07 14:19:02,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:02,236 INFO L93 Difference]: Finished difference Result 18805 states and 31089 transitions. [2019-10-07 14:19:02,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:02,236 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-10-07 14:19:02,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:02,338 INFO L225 Difference]: With dead ends: 18805 [2019-10-07 14:19:02,338 INFO L226 Difference]: Without dead ends: 12614 [2019-10-07 14:19:02,378 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:02,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12614 states. [2019-10-07 14:19:03,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12614 to 12359. [2019-10-07 14:19:03,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12359 states. [2019-10-07 14:19:03,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12359 states to 12359 states and 20126 transitions. [2019-10-07 14:19:03,860 INFO L78 Accepts]: Start accepts. Automaton has 12359 states and 20126 transitions. Word has length 120 [2019-10-07 14:19:03,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:03,860 INFO L462 AbstractCegarLoop]: Abstraction has 12359 states and 20126 transitions. [2019-10-07 14:19:03,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:03,860 INFO L276 IsEmpty]: Start isEmpty. Operand 12359 states and 20126 transitions. [2019-10-07 14:19:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:19:03,864 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:03,864 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 14:19:03,864 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:03,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:03,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1589903732, now seen corresponding path program 1 times [2019-10-07 14:19:03,865 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:03,865 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:03,865 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:03,865 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:03,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:04,007 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 14:19:04,008 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:04,008 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:04,008 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:04,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:04,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:04,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:04,009 INFO L87 Difference]: Start difference. First operand 12359 states and 20126 transitions. Second operand 4 states. [2019-10-07 14:19:06,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:06,462 INFO L93 Difference]: Finished difference Result 37392 states and 65353 transitions. [2019-10-07 14:19:06,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:06,462 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-07 14:19:06,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:06,635 INFO L225 Difference]: With dead ends: 37392 [2019-10-07 14:19:06,635 INFO L226 Difference]: Without dead ends: 25078 [2019-10-07 14:19:06,710 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:06,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25078 states. [2019-10-07 14:19:08,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25078 to 24496. [2019-10-07 14:19:08,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24496 states. [2019-10-07 14:19:08,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24496 states to 24496 states and 41521 transitions. [2019-10-07 14:19:08,187 INFO L78 Accepts]: Start accepts. Automaton has 24496 states and 41521 transitions. Word has length 121 [2019-10-07 14:19:08,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:08,190 INFO L462 AbstractCegarLoop]: Abstraction has 24496 states and 41521 transitions. [2019-10-07 14:19:08,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:08,190 INFO L276 IsEmpty]: Start isEmpty. Operand 24496 states and 41521 transitions. [2019-10-07 14:19:08,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:19:08,199 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:08,199 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] [2019-10-07 14:19:08,199 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:08,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:08,200 INFO L82 PathProgramCache]: Analyzing trace with hash -856043766, now seen corresponding path program 1 times [2019-10-07 14:19:08,200 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:08,200 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:08,200 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:08,201 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:08,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:09,273 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 14:19:09,273 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:09,274 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:09,274 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:19:09,277 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:19:09,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:19:09,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:09,278 INFO L87 Difference]: Start difference. First operand 24496 states and 41521 transitions. Second operand 5 states. [2019-10-07 14:19:10,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:10,407 INFO L93 Difference]: Finished difference Result 49371 states and 86733 transitions. [2019-10-07 14:19:10,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:10,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2019-10-07 14:19:10,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:10,628 INFO L225 Difference]: With dead ends: 49371 [2019-10-07 14:19:10,628 INFO L226 Difference]: Without dead ends: 24918 [2019-10-07 14:19:10,721 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 14:19:10,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24918 states. [2019-10-07 14:19:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24918 to 24768. [2019-10-07 14:19:12,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24768 states. [2019-10-07 14:19:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24768 states to 24768 states and 42036 transitions. [2019-10-07 14:19:12,133 INFO L78 Accepts]: Start accepts. Automaton has 24768 states and 42036 transitions. Word has length 181 [2019-10-07 14:19:12,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:12,134 INFO L462 AbstractCegarLoop]: Abstraction has 24768 states and 42036 transitions. [2019-10-07 14:19:12,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:19:12,134 INFO L276 IsEmpty]: Start isEmpty. Operand 24768 states and 42036 transitions. [2019-10-07 14:19:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-07 14:19:12,144 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:12,144 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] [2019-10-07 14:19:12,144 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:12,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:12,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1099132763, now seen corresponding path program 1 times [2019-10-07 14:19:12,145 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:12,145 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:12,145 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:12,145 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:12,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:12,357 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 14:19:12,357 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:12,357 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:12,358 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 14:19:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:13,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 3437 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:19:13,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:13,431 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 14:19:13,431 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:13,952 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 14:19:13,952 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:19:13,952 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:19:13,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:13,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:13,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:19:13,954 INFO L87 Difference]: Start difference. First operand 24768 states and 42036 transitions. Second operand 4 states. [2019-10-07 14:19:16,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:16,093 INFO L93 Difference]: Finished difference Result 51989 states and 91760 transitions. [2019-10-07 14:19:16,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:16,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 190 [2019-10-07 14:19:16,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:16,310 INFO L225 Difference]: With dead ends: 51989 [2019-10-07 14:19:16,311 INFO L226 Difference]: Without dead ends: 27264 [2019-10-07 14:19:16,533 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 379 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 14:19:16,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27264 states. [2019-10-07 14:19:18,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27264 to 27264. [2019-10-07 14:19:18,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27264 states. [2019-10-07 14:19:18,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27264 states to 27264 states and 46708 transitions. [2019-10-07 14:19:18,819 INFO L78 Accepts]: Start accepts. Automaton has 27264 states and 46708 transitions. Word has length 190 [2019-10-07 14:19:18,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:18,820 INFO L462 AbstractCegarLoop]: Abstraction has 27264 states and 46708 transitions. [2019-10-07 14:19:18,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:18,820 INFO L276 IsEmpty]: Start isEmpty. Operand 27264 states and 46708 transitions. [2019-10-07 14:19:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 14:19:18,832 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:18,832 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] [2019-10-07 14:19:19,041 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:19,041 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:19,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:19,042 INFO L82 PathProgramCache]: Analyzing trace with hash 423316847, now seen corresponding path program 1 times [2019-10-07 14:19:19,042 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:19,042 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:19,042 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:19,042 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:19,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:19,527 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 14:19:19,527 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:19,527 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:19,528 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 14:19:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:20,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 3442 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:19:20,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:19:20,247 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:20,752 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 14:19:20,752 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:19:20,752 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:19:20,753 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:20,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:20,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:19:20,754 INFO L87 Difference]: Start difference. First operand 27264 states and 46708 transitions. Second operand 4 states. [2019-10-07 14:19:23,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:23,364 INFO L93 Difference]: Finished difference Result 56981 states and 101038 transitions. [2019-10-07 14:19:23,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:23,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2019-10-07 14:19:23,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:23,499 INFO L225 Difference]: With dead ends: 56981 [2019-10-07 14:19:23,500 INFO L226 Difference]: Without dead ends: 29760 [2019-10-07 14:19:23,583 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 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 14:19:23,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29760 states. [2019-10-07 14:19:25,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29760 to 29760. [2019-10-07 14:19:25,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29760 states. [2019-10-07 14:19:25,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29760 states to 29760 states and 51380 transitions. [2019-10-07 14:19:25,284 INFO L78 Accepts]: Start accepts. Automaton has 29760 states and 51380 transitions. Word has length 195 [2019-10-07 14:19:25,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:25,289 INFO L462 AbstractCegarLoop]: Abstraction has 29760 states and 51380 transitions. [2019-10-07 14:19:25,289 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:25,290 INFO L276 IsEmpty]: Start isEmpty. Operand 29760 states and 51380 transitions. [2019-10-07 14:19:25,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-07 14:19:25,303 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:25,304 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] [2019-10-07 14:19:25,514 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:25,515 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:25,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:25,516 INFO L82 PathProgramCache]: Analyzing trace with hash -2018456513, now seen corresponding path program 1 times [2019-10-07 14:19:25,517 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:25,517 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:25,517 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:25,518 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:25,729 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 14:19:25,729 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:25,729 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:25,729 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 14:19:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:26,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 3446 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:19:26,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:26,671 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 14:19:26,671 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:27,088 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 14:19:27,089 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:19:27,089 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:19:27,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:27,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:27,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:19:27,090 INFO L87 Difference]: Start difference. First operand 29760 states and 51380 transitions. Second operand 4 states. [2019-10-07 14:19:28,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:28,196 INFO L93 Difference]: Finished difference Result 61973 states and 110316 transitions. [2019-10-07 14:19:28,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:28,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2019-10-07 14:19:28,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:28,346 INFO L225 Difference]: With dead ends: 61973 [2019-10-07 14:19:28,347 INFO L226 Difference]: Without dead ends: 32256 [2019-10-07 14:19:28,427 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 395 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 14:19:28,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32256 states. [2019-10-07 14:19:29,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32256 to 32256. [2019-10-07 14:19:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32256 states. [2019-10-07 14:19:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32256 states to 32256 states and 56052 transitions. [2019-10-07 14:19:30,008 INFO L78 Accepts]: Start accepts. Automaton has 32256 states and 56052 transitions. Word has length 199 [2019-10-07 14:19:30,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:30,009 INFO L462 AbstractCegarLoop]: Abstraction has 32256 states and 56052 transitions. [2019-10-07 14:19:30,009 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:30,009 INFO L276 IsEmpty]: Start isEmpty. Operand 32256 states and 56052 transitions. [2019-10-07 14:19:30,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-07 14:19:30,018 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:30,019 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] [2019-10-07 14:19:30,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:30,228 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:30,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:30,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1617830449, now seen corresponding path program 1 times [2019-10-07 14:19:30,229 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:30,229 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:30,229 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:30,229 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:30,443 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 14:19:30,443 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:30,443 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:30,444 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 14:19:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:31,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 3449 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:19:31,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:31,279 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 14:19:31,279 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:31,719 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 14:19:31,719 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:19:31,720 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:19:31,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:31,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:31,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:19:31,721 INFO L87 Difference]: Start difference. First operand 32256 states and 56052 transitions. Second operand 4 states. [2019-10-07 14:19:33,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:33,844 INFO L93 Difference]: Finished difference Result 66965 states and 119594 transitions. [2019-10-07 14:19:33,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:33,845 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 202 [2019-10-07 14:19:33,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:33,935 INFO L225 Difference]: With dead ends: 66965 [2019-10-07 14:19:33,935 INFO L226 Difference]: Without dead ends: 34752 [2019-10-07 14:19:33,979 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 401 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 14:19:34,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34752 states. [2019-10-07 14:19:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34752 to 34752. [2019-10-07 14:19:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34752 states. [2019-10-07 14:19:34,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34752 states to 34752 states and 60724 transitions. [2019-10-07 14:19:34,994 INFO L78 Accepts]: Start accepts. Automaton has 34752 states and 60724 transitions. Word has length 202 [2019-10-07 14:19:34,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:34,995 INFO L462 AbstractCegarLoop]: Abstraction has 34752 states and 60724 transitions. [2019-10-07 14:19:34,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 34752 states and 60724 transitions. [2019-10-07 14:19:35,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-10-07 14:19:35,003 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:35,003 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] [2019-10-07 14:19:35,212 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:35,212 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:35,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:35,212 INFO L82 PathProgramCache]: Analyzing trace with hash 2038634849, now seen corresponding path program 1 times [2019-10-07 14:19:35,213 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:35,213 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:35,213 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:35,213 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:35,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:35,453 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 14:19:35,454 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:35,454 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:35,454 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 14:19:36,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:36,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 3445 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:19:36,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:36,208 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 14:19:36,208 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:36,461 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:19:36,909 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 14:19:36,909 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:19:36,909 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [9] total 16 [2019-10-07 14:19:36,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:19:36,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:19:36,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:19:36,911 INFO L87 Difference]: Start difference. First operand 34752 states and 60724 transitions. Second operand 9 states. [2019-10-07 14:19:39,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:39,198 INFO L93 Difference]: Finished difference Result 36158 states and 67683 transitions. [2019-10-07 14:19:39,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:19:39,199 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 204 [2019-10-07 14:19:39,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:39,370 INFO L225 Difference]: With dead ends: 36158 [2019-10-07 14:19:39,371 INFO L226 Difference]: Without dead ends: 35939 [2019-10-07 14:19:39,394 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 405 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 14:19:39,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35939 states. [2019-10-07 14:19:40,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35939 to 35235. [2019-10-07 14:19:40,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35235 states. [2019-10-07 14:19:40,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35235 states to 35235 states and 63042 transitions. [2019-10-07 14:19:40,845 INFO L78 Accepts]: Start accepts. Automaton has 35235 states and 63042 transitions. Word has length 204 [2019-10-07 14:19:40,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:40,845 INFO L462 AbstractCegarLoop]: Abstraction has 35235 states and 63042 transitions. [2019-10-07 14:19:40,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:19:40,845 INFO L276 IsEmpty]: Start isEmpty. Operand 35235 states and 63042 transitions. [2019-10-07 14:19:40,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2019-10-07 14:19:40,857 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:40,857 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 14:19:41,066 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:41,066 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:41,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:41,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1899214890, now seen corresponding path program 1 times [2019-10-07 14:19:41,067 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:41,067 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:41,067 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:41,067 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:41,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:41,277 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 14:19:41,277 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:41,277 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:41,278 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 14:19:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:41,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 3460 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:19:41,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:42,039 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 14:19:42,039 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:42,493 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 14:19:42,494 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:19:42,494 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [9] total 12 [2019-10-07 14:19:42,496 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:19:42,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:19:42,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:19:42,500 INFO L87 Difference]: Start difference. First operand 35235 states and 63042 transitions. Second operand 5 states. [2019-10-07 14:19:43,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:43,157 INFO L93 Difference]: Finished difference Result 35454 states and 63286 transitions. [2019-10-07 14:19:43,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:19:43,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2019-10-07 14:19:43,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:43,259 INFO L225 Difference]: With dead ends: 35454 [2019-10-07 14:19:43,259 INFO L226 Difference]: Without dead ends: 35235 [2019-10-07 14:19:43,276 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 419 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:19:43,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35235 states. [2019-10-07 14:19:45,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35235 to 35235. [2019-10-07 14:19:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35235 states. [2019-10-07 14:19:45,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35235 states to 35235 states and 62949 transitions. [2019-10-07 14:19:45,510 INFO L78 Accepts]: Start accepts. Automaton has 35235 states and 62949 transitions. Word has length 209 [2019-10-07 14:19:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:45,511 INFO L462 AbstractCegarLoop]: Abstraction has 35235 states and 62949 transitions. [2019-10-07 14:19:45,511 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:19:45,511 INFO L276 IsEmpty]: Start isEmpty. Operand 35235 states and 62949 transitions. [2019-10-07 14:19:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2019-10-07 14:19:45,518 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:45,518 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] [2019-10-07 14:19:45,719 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:45,720 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:45,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:45,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1124739150, now seen corresponding path program 1 times [2019-10-07 14:19:45,721 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:45,721 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:45,721 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:45,722 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:45,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:45,984 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 14:19:45,985 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:45,985 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:45,985 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 14:19:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:46,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 3503 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:19:46,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:46,939 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 14:19:46,939 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:47,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:19:47,550 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:19:47,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:19:47,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:19:47,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:19:47,583 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:19:47,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:19:47,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:19:47,690 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 14:19:47,690 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:19:47,720 INFO L162 IcfgInterpreter]: Started Sifa with 188 locations of interest [2019-10-07 14:19:47,720 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:19:47,727 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:19:47,734 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:19:47,734 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:20:27,910 WARN L191 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 764 [2019-10-07 14:20:32,439 WARN L191 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:20:32,914 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:20:33,330 WARN L191 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:20:33,707 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:20:34,275 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:20:34,913 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:20:35,529 WARN L191 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:20:36,052 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:20:36,955 WARN L191 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 1042 DAG size of output: 1040 [2019-10-07 14:20:37,428 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:20:37,949 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:20:38,545 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:20:39,006 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:20:39,530 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:20:39,550 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 391 for LOIs [2019-10-07 14:20:39,800 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:20:39,913 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:20:40,265 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:20:40,266 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1090 for LOIs [2019-10-07 14:20:40,710 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:41,289 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:41,418 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:42,187 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:42,646 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:43,089 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:43,232 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:43,999 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:44,656 WARN L191 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:45,101 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:45,248 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:45,997 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:46,886 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 1262 DAG size of output: 1090 [2019-10-07 14:20:47,463 WARN L191 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:47,748 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:48,555 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:49,015 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:49,462 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:49,584 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:50,353 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:50,932 WARN L191 SmtUtils]: Spent 576.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:51,383 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:51,531 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:52,298 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:52,743 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:53,192 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:53,315 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:54,184 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:54,643 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:55,095 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:55,217 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:55,977 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:56,422 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:56,879 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:57,124 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:57,893 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:58,346 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:58,799 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:20:58,921 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:59,687 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:00,268 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:21:00,731 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:21:00,855 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:21:01,633 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:02,085 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:21:02,537 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:21:02,659 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:21:03,539 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:03,989 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:21:04,435 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:21:04,557 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:21:05,317 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:06,127 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:07,012 WARN L191 SmtUtils]: Spent 881.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:07,220 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:21:07,988 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:10,373 WARN L191 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:21:11,261 WARN L191 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:11,394 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:21:12,171 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:12,946 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:13,725 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:13,974 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:21:14,744 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:16,422 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:21:17,204 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:21:17,342 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:18,293 WARN L191 SmtUtils]: Spent 950.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:19,698 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:21:20,476 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:21:20,610 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:21,493 WARN L191 SmtUtils]: Spent 881.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:22,860 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1262 [2019-10-07 14:21:23,632 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:21:23,758 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:24,534 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:25,326 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:21:26,102 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:21:26,275 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:27,057 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:21:27,854 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:28,639 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:28,769 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:29,551 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:30,361 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:31,141 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:31,272 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:32,050 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:33,464 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1271 [2019-10-07 14:21:34,260 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:34,549 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:35,400 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:36,187 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:36,979 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:37,104 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:37,903 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:21:39,322 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:21:40,097 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:40,246 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:21:41,012 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:42,399 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:21:43,172 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:43,303 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:21:44,066 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:44,835 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:45,626 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:45,751 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:21:46,519 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:47,965 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:21:48,746 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:48,878 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:49,650 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:51,044 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:21:51,811 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:51,941 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:52,707 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:53,481 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:54,253 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:54,382 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:55,163 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:56,558 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1262 [2019-10-07 14:21:57,327 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:21:57,464 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:21:58,237 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:21:59,645 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1264 [2019-10-07 14:22:00,421 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:00,553 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:01,351 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:22:02,752 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:03,535 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:03,666 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:04,449 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:05,845 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:06,629 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:06,759 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:07,532 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:08,321 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:09,102 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:09,225 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:10,008 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:11,429 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:12,215 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:12,346 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:13,104 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:14,479 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:15,242 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:15,372 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:16,130 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:16,898 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:17,665 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:17,787 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:18,556 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:19,986 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:22:20,765 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:20,936 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:21,734 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:23,157 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:22:23,944 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:24,077 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:24,876 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:25,656 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:26,435 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:26,560 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:27,350 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:28,682 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1264 [2019-10-07 14:22:29,459 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:29,590 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:30,355 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:31,661 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1266 [2019-10-07 14:22:32,431 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:22:32,562 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:33,330 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:22:34,808 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1271 [2019-10-07 14:22:35,596 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:22:35,726 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:36,510 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:22:37,937 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1271 [2019-10-07 14:22:38,730 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:22:38,861 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:39,652 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:22:41,086 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:41,861 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:42,008 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:42,785 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:44,192 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:44,966 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:45,098 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:45,878 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:46,647 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:47,416 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:47,538 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:22:48,302 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:49,733 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:22:50,525 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:50,657 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:51,427 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:52,819 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:22:53,597 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:53,728 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:54,503 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:55,916 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:22:56,694 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:56,819 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:22:57,597 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:22:59,030 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:22:59,806 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:22:59,935 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:00,704 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:02,097 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:23:02,896 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:03,026 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:03,804 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:23:05,199 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:05,973 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:06,103 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:06,875 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:08,241 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:08,997 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:09,125 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:09,887 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:11,291 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:12,058 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:12,186 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:12,954 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:14,315 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:15,081 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:15,213 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:15,975 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:16,736 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:17,499 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:17,621 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:18,389 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:19,804 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:23:20,593 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:20,726 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:21,493 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:22,909 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:23:23,673 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:23,801 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:24,571 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:25,958 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:26,724 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:26,859 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:27,631 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:29,173 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:29,941 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:30,084 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:30,864 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:31,635 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:32,410 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:32,533 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:33,298 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:34,711 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:23:35,489 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:35,629 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:36,407 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:37,846 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:23:38,623 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:38,752 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:39,535 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:40,322 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:41,111 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:41,236 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:42,025 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:43,436 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:23:44,215 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:23:44,357 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:23:45,153 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:23:45,159 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1114 for LOIs [2019-10-07 14:23:45,653 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:23:46,161 WARN L191 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:23:46,288 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:47,073 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:47,623 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:23:48,158 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:23:48,285 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:49,064 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:50,016 WARN L191 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 1262 DAG size of output: 1124 [2019-10-07 14:23:50,535 WARN L191 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:23:50,663 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:51,449 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:51,969 WARN L191 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:23:52,479 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:23:52,601 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:53,366 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:53,871 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:23:54,381 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:23:54,503 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:55,267 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:55,773 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:23:56,285 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:23:56,406 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:23:57,176 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:57,472 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:23:57,473 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 14:23:57,478 INFO L168 Benchmark]: Toolchain (without parser) took 315871.08 ms. Allocated memory was 137.9 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 99.9 MB in the beginning and 402.3 MB in the end (delta: -302.4 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:23:57,478 INFO L168 Benchmark]: CDTParser took 1.16 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 14:23:57,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 994.88 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.7 MB in the beginning and 142.8 MB in the end (delta: -43.1 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:23:57,479 INFO L168 Benchmark]: Boogie Preprocessor took 222.13 ms. Allocated memory is still 203.4 MB. Free memory was 142.8 MB in the beginning and 132.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:23:57,479 INFO L168 Benchmark]: RCFGBuilder took 4606.80 ms. Allocated memory was 203.4 MB in the beginning and 307.2 MB in the end (delta: 103.8 MB). Free memory was 132.8 MB in the beginning and 230.2 MB in the end (delta: -97.5 MB). Peak memory consumption was 160.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:23:57,480 INFO L168 Benchmark]: TraceAbstraction took 310042.81 ms. Allocated memory was 307.2 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 230.2 MB in the beginning and 402.3 MB in the end (delta: -172.1 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:23:57,481 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.16 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 994.88 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 99.7 MB in the beginning and 142.8 MB in the end (delta: -43.1 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 222.13 ms. Allocated memory is still 203.4 MB. Free memory was 142.8 MB in the beginning and 132.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4606.80 ms. Allocated memory was 203.4 MB in the beginning and 307.2 MB in the end (delta: 103.8 MB). Free memory was 132.8 MB in the beginning and 230.2 MB in the end (delta: -97.5 MB). Peak memory consumption was 160.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 310042.81 ms. Allocated memory was 307.2 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 230.2 MB in the beginning and 402.3 MB in the end (delta: -172.1 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...