java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:03:08,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:03:08,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:03:08,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:03:08,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:03:08,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:03:08,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:03:08,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:03:08,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:03:08,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:03:08,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:03:08,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:03:08,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:03:08,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:03:08,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:03:08,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:03:08,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:03:08,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:03:08,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:03:08,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:03:08,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:03:08,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:03:08,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:03:08,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:03:08,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:03:08,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:03:08,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:03:08,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:03:08,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:03:08,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:03:08,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:03:08,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:03:08,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:03:08,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:03:08,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:03:08,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:03:08,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:03:08,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:03:08,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:03:08,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:03:08,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:03:08,872 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 14:03:08,886 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:03:08,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:03:08,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:03:08,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:03:08,888 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:03:08,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:03:08,889 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:03:08,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:03:08,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:03:08,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:03:08,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:03:08,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:03:08,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:03:08,890 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:03:08,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:03:08,890 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:03:08,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:03:08,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:03:08,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:03:08,891 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:03:08,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:03:08,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:03:08,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:03:08,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:03:08,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:03:08,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:03:08,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:03:08,893 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:03:08,893 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 14:03:09,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:03:09,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:03:09,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:03:09,239 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:03:09,239 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:03:09,240 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c [2019-10-07 14:03:09,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241756cfe/1c7add788a7b481899f127a6f249e549/FLAG5c46ab8ac [2019-10-07 14:03:09,979 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:03:09,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product31.cil.c [2019-10-07 14:03:10,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241756cfe/1c7add788a7b481899f127a6f249e549/FLAG5c46ab8ac [2019-10-07 14:03:10,157 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/241756cfe/1c7add788a7b481899f127a6f249e549 [2019-10-07 14:03:10,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:03:10,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:03:10,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:03:10,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:03:10,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:03:10,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:03:10" (1/1) ... [2019-10-07 14:03:10,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345a22c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:10, skipping insertion in model container [2019-10-07 14:03:10,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:03:10" (1/1) ... [2019-10-07 14:03:10,183 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:03:10,251 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:03:11,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:03:11,053 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:03:11,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:03:11,240 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:03:11,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11 WrapperNode [2019-10-07 14:03:11,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:03:11,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:03:11,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:03:11,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:03:11,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11" (1/1) ... [2019-10-07 14:03:11,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11" (1/1) ... [2019-10-07 14:03:11,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11" (1/1) ... [2019-10-07 14:03:11,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11" (1/1) ... [2019-10-07 14:03:11,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11" (1/1) ... [2019-10-07 14:03:11,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11" (1/1) ... [2019-10-07 14:03:11,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11" (1/1) ... [2019-10-07 14:03:11,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:03:11,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:03:11,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:03:11,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:03:11,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:03:11,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:03:11,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:03:11,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:03:11,572 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:03:11,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:03:11,573 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:03:11,574 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:03:11,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:03:11,574 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:03:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:03:11,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:03:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:03:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:03:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:03:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:03:11,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:03:11,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:03:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:03:11,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:03:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:03:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:03:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:03:11,581 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:03:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:03:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:03:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:03:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:03:11,582 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:03:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:03:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:03:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:03:11,583 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:03:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:03:11,584 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:03:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:03:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:03:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:03:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:03:11,585 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:03:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:03:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:03:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:03:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:03:11,586 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:03:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:03:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:03:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:03:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:03:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:03:11,587 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:03:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:03:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:03:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:03:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:03:11,588 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:03:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:03:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:03:11,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:03:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:03:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:03:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:03:11,590 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:03:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:03:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:03:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:03:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:03:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:03:11,591 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:03:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:03:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:03:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:03:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:03:11,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:03:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:03:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:03:11,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2019-10-07 14:03:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:03:11,594 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:03:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:03:11,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:03:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:03:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:03:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:03:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:03:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:03:11,596 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:03:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:03:11,597 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:03:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:03:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:03:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:03:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:03:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:03:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:03:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:03:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:03:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:03:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:03:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:03:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:03:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:03:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:03:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:03:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:03:11,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:03:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:03:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:03:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:03:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:03:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:03:11,601 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:03:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:03:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:03:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:03:11,602 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:03:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:03:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:03:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:03:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:03:11,603 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:03:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:03:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:03:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:03:11,604 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:03:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:03:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:03:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:03:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:03:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:03:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:03:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:03:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:03:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:03:11,609 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:03:11,612 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:03:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:03:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:03:11,613 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:03:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2019-10-07 14:03:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:03:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:03:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:03:11,614 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2019-10-07 14:03:11,615 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:03:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:03:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:03:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2019-10-07 14:03:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:03:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:03:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:03:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:03:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:03:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:03:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:03:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:03:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:03:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:03:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:03:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:03:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:03:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:03:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:03:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:03:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:03:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:03:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:03:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:03:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:03:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:03:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:03:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:03:16,597 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:03:16,597 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:03:16,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:03:16 BoogieIcfgContainer [2019-10-07 14:03:16,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:03:16,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:03:16,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:03:16,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:03:16,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:03:10" (1/3) ... [2019-10-07 14:03:16,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285b3087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:03:16, skipping insertion in model container [2019-10-07 14:03:16,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:03:11" (2/3) ... [2019-10-07 14:03:16,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285b3087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:03:16, skipping insertion in model container [2019-10-07 14:03:16,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:03:16" (3/3) ... [2019-10-07 14:03:16,607 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product31.cil.c [2019-10-07 14:03:16,618 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:03:16,629 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:03:16,642 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:03:16,686 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:03:16,686 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:03:16,686 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:03:16,687 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:03:16,687 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:03:16,687 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:03:16,687 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:03:16,687 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:03:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states. [2019-10-07 14:03:16,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-07 14:03:16,764 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:03:16,765 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:03:16,770 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:03:16,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:03:16,777 INFO L82 PathProgramCache]: Analyzing trace with hash -2098909853, now seen corresponding path program 1 times [2019-10-07 14:03:16,786 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:03:16,786 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:16,787 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:16,787 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:16,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:03:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:17,657 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:03:17,658 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:17,658 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:03:17,659 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:03:17,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:03:17,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:03:17,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:03:17,681 INFO L87 Difference]: Start difference. First operand 572 states. Second operand 7 states. [2019-10-07 14:03:19,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:03:19,168 INFO L93 Difference]: Finished difference Result 1029 states and 1503 transitions. [2019-10-07 14:03:19,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:03:19,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2019-10-07 14:03:19,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:03:19,198 INFO L225 Difference]: With dead ends: 1029 [2019-10-07 14:03:19,198 INFO L226 Difference]: Without dead ends: 579 [2019-10-07 14:03:19,211 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:03:19,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-10-07 14:03:19,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 573. [2019-10-07 14:03:19,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2019-10-07 14:03:19,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 815 transitions. [2019-10-07 14:03:19,402 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 815 transitions. Word has length 110 [2019-10-07 14:03:19,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:03:19,404 INFO L462 AbstractCegarLoop]: Abstraction has 573 states and 815 transitions. [2019-10-07 14:03:19,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:03:19,404 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 815 transitions. [2019-10-07 14:03:19,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 14:03:19,422 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:03:19,422 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:03:19,423 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:03:19,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:03:19,424 INFO L82 PathProgramCache]: Analyzing trace with hash 1562840757, now seen corresponding path program 1 times [2019-10-07 14:03:19,424 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:03:19,425 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:19,425 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:19,425 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:19,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:03:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-10-07 14:03:19,730 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:19,731 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:03:19,731 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:03:19,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:03:19,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:03:19,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:03:19,734 INFO L87 Difference]: Start difference. First operand 573 states and 815 transitions. Second operand 5 states. [2019-10-07 14:03:19,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:03:19,800 INFO L93 Difference]: Finished difference Result 1121 states and 1609 transitions. [2019-10-07 14:03:19,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:03:19,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2019-10-07 14:03:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:03:19,813 INFO L225 Difference]: With dead ends: 1121 [2019-10-07 14:03:19,813 INFO L226 Difference]: Without dead ends: 579 [2019-10-07 14:03:19,819 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 14:03:19,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2019-10-07 14:03:19,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 579. [2019-10-07 14:03:19,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-10-07 14:03:19,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 821 transitions. [2019-10-07 14:03:19,887 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 821 transitions. Word has length 150 [2019-10-07 14:03:19,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:03:19,888 INFO L462 AbstractCegarLoop]: Abstraction has 579 states and 821 transitions. [2019-10-07 14:03:19,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:03:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 821 transitions. [2019-10-07 14:03:19,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-07 14:03:19,894 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:03:19,894 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:03:19,894 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:03:19,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:03:19,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1474737883, now seen corresponding path program 1 times [2019-10-07 14:03:19,895 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:03:19,895 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:19,895 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:19,895 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:19,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:03:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:03:20,094 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:20,094 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:03:20,094 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 14:03:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:20,743 INFO L256 TraceCheckSpWp]: Trace formula consists of 2929 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:03:20,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:03:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-07 14:03:20,842 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:03:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:03:21,057 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:03:21,057 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:03:21,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:03:21,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:03:21,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:03:21,058 INFO L87 Difference]: Start difference. First operand 579 states and 821 transitions. Second operand 4 states. [2019-10-07 14:03:21,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:03:21,297 INFO L93 Difference]: Finished difference Result 1166 states and 1693 transitions. [2019-10-07 14:03:21,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:03:21,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2019-10-07 14:03:21,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:03:21,304 INFO L225 Difference]: With dead ends: 1166 [2019-10-07 14:03:21,304 INFO L226 Difference]: Without dead ends: 618 [2019-10-07 14:03:21,308 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 317 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 14:03:21,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2019-10-07 14:03:21,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 618. [2019-10-07 14:03:21,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2019-10-07 14:03:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 894 transitions. [2019-10-07 14:03:21,348 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 894 transitions. Word has length 159 [2019-10-07 14:03:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:03:21,348 INFO L462 AbstractCegarLoop]: Abstraction has 618 states and 894 transitions. [2019-10-07 14:03:21,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:03:21,349 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 894 transitions. [2019-10-07 14:03:21,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-10-07 14:03:21,354 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:03:21,355 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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] [2019-10-07 14:03:21,569 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:03:21,570 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:03:21,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:03:21,570 INFO L82 PathProgramCache]: Analyzing trace with hash 477399627, now seen corresponding path program 1 times [2019-10-07 14:03:21,571 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:03:21,571 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:21,571 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:21,571 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:21,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:03:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:21,754 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:03:21,754 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:21,754 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:03:21,754 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 14:03:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:22,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 2934 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:03:22,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:03:22,418 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:03:22,418 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:03:22,613 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:03:22,613 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:03:22,613 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:03:22,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:03:22,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:03:22,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:03:22,615 INFO L87 Difference]: Start difference. First operand 618 states and 894 transitions. Second operand 4 states. [2019-10-07 14:03:22,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:03:22,820 INFO L93 Difference]: Finished difference Result 1244 states and 1838 transitions. [2019-10-07 14:03:22,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:03:22,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 164 [2019-10-07 14:03:22,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:03:22,826 INFO L225 Difference]: With dead ends: 1244 [2019-10-07 14:03:22,826 INFO L226 Difference]: Without dead ends: 657 [2019-10-07 14:03:22,830 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 325 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 14:03:22,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2019-10-07 14:03:22,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2019-10-07 14:03:22,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2019-10-07 14:03:22,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 967 transitions. [2019-10-07 14:03:22,861 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 967 transitions. Word has length 164 [2019-10-07 14:03:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:03:22,862 INFO L462 AbstractCegarLoop]: Abstraction has 657 states and 967 transitions. [2019-10-07 14:03:22,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:03:22,862 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 967 transitions. [2019-10-07 14:03:22,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 14:03:22,867 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:03:22,867 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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] [2019-10-07 14:03:23,074 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:03:23,076 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:03:23,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:03:23,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1247194373, now seen corresponding path program 1 times [2019-10-07 14:03:23,077 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:03:23,077 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:23,077 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:23,077 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:23,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:03:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:23,369 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-07 14:03:23,370 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:23,370 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:03:23,370 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 14:03:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:23,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 2938 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:03:23,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:03:24,061 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:03:24,061 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:03:24,225 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-10-07 14:03:24,226 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:03:24,226 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:03:24,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:03:24,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:03:24,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:03:24,228 INFO L87 Difference]: Start difference. First operand 657 states and 967 transitions. Second operand 4 states. [2019-10-07 14:03:24,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:03:24,422 INFO L93 Difference]: Finished difference Result 1322 states and 1983 transitions. [2019-10-07 14:03:24,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:03:24,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2019-10-07 14:03:24,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:03:24,428 INFO L225 Difference]: With dead ends: 1322 [2019-10-07 14:03:24,429 INFO L226 Difference]: Without dead ends: 696 [2019-10-07 14:03:24,432 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 333 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 14:03:24,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2019-10-07 14:03:24,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2019-10-07 14:03:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2019-10-07 14:03:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1040 transitions. [2019-10-07 14:03:24,464 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1040 transitions. Word has length 168 [2019-10-07 14:03:24,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:03:24,465 INFO L462 AbstractCegarLoop]: Abstraction has 696 states and 1040 transitions. [2019-10-07 14:03:24,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:03:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1040 transitions. [2019-10-07 14:03:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2019-10-07 14:03:24,470 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:03:24,471 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:03:24,687 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:03:24,687 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:03:24,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:03:24,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1917654357, now seen corresponding path program 1 times [2019-10-07 14:03:24,689 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:03:24,690 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:24,690 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:24,690 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:24,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:03:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:25,249 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 5 proven. 24 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2019-10-07 14:03:25,249 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:25,251 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:03:25,251 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 14:03:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:25,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 3323 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:03:25,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:03:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2019-10-07 14:03:25,940 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:03:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-10-07 14:03:26,225 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:03:26,225 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12, 4] total 15 [2019-10-07 14:03:26,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:03:26,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:03:26,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-10-07 14:03:26,228 INFO L87 Difference]: Start difference. First operand 696 states and 1040 transitions. Second operand 4 states. [2019-10-07 14:03:26,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:03:26,445 INFO L93 Difference]: Finished difference Result 1400 states and 2128 transitions. [2019-10-07 14:03:26,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:03:26,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 232 [2019-10-07 14:03:26,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:03:26,452 INFO L225 Difference]: With dead ends: 1400 [2019-10-07 14:03:26,452 INFO L226 Difference]: Without dead ends: 735 [2019-10-07 14:03:26,458 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 467 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:03:26,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2019-10-07 14:03:26,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2019-10-07 14:03:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2019-10-07 14:03:26,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1113 transitions. [2019-10-07 14:03:26,507 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1113 transitions. Word has length 232 [2019-10-07 14:03:26,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:03:26,509 INFO L462 AbstractCegarLoop]: Abstraction has 735 states and 1113 transitions. [2019-10-07 14:03:26,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:03:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1113 transitions. [2019-10-07 14:03:26,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2019-10-07 14:03:26,525 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:03:26,526 INFO L385 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:03:26,745 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:03:26,745 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:03:26,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:03:26,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1726420557, now seen corresponding path program 1 times [2019-10-07 14:03:26,746 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:03:26,746 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:26,746 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:26,746 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:26,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:03:26,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:27,131 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2019-10-07 14:03:27,132 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:27,132 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:03:27,132 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 14:03:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:27,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 3701 conjuncts, 29 conjunts are in the unsatisfiable core [2019-10-07 14:03:27,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:03:27,952 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2019-10-07 14:03:27,952 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:03:28,295 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-10-07 14:03:28,487 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 18 proven. 14 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2019-10-07 14:03:28,487 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:03:28,488 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10, 7] total 12 [2019-10-07 14:03:28,488 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:03:28,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:03:28,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:03:28,489 INFO L87 Difference]: Start difference. First operand 735 states and 1113 transitions. Second operand 7 states. [2019-10-07 14:03:32,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:03:32,359 INFO L93 Difference]: Finished difference Result 2064 states and 3185 transitions. [2019-10-07 14:03:32,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:03:32,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 295 [2019-10-07 14:03:32,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:03:32,369 INFO L225 Difference]: With dead ends: 2064 [2019-10-07 14:03:32,370 INFO L226 Difference]: Without dead ends: 1360 [2019-10-07 14:03:32,373 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:03:32,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2019-10-07 14:03:32,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1321. [2019-10-07 14:03:32,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1321 states. [2019-10-07 14:03:32,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 2045 transitions. [2019-10-07 14:03:32,432 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 2045 transitions. Word has length 295 [2019-10-07 14:03:32,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:03:32,433 INFO L462 AbstractCegarLoop]: Abstraction has 1321 states and 2045 transitions. [2019-10-07 14:03:32,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:03:32,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 2045 transitions. [2019-10-07 14:03:32,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-07 14:03:32,439 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:03:32,439 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:03:32,648 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:03:32,648 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:03:32,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:03:32,649 INFO L82 PathProgramCache]: Analyzing trace with hash 441714739, now seen corresponding path program 1 times [2019-10-07 14:03:32,649 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:03:32,649 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:32,649 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:32,650 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:03:32,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:03:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:03:32,938 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:03:32,939 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:03:32,939 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 14:03:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:03:33,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 2937 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:03:33,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:03:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 20 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-07 14:03:33,633 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:03:33,839 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:03:33,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:03:33,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:03:33,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:03:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:03:33,930 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:03:33,959 INFO L162 IcfgInterpreter]: Started Sifa with 135 locations of interest [2019-10-07 14:03:33,960 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:03:33,966 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:03:33,974 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:03:33,975 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:04:18,553 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 754 [2019-10-07 14:04:23,322 WARN L191 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:04:23,736 WARN L191 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2019-10-07 14:04:24,011 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2019-10-07 14:04:24,285 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2019-10-07 14:04:24,842 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:04:25,343 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:04:25,817 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:04:26,332 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:04:27,265 WARN L191 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 1022 DAG size of output: 1020 [2019-10-07 14:04:27,688 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:04:28,217 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:04:28,631 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:04:29,048 WARN L191 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:04:29,603 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 1020 [2019-10-07 14:04:29,623 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 376 for LOIs [2019-10-07 14:04:29,865 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 723 [2019-10-07 14:04:30,279 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 903 [2019-10-07 14:04:30,280 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1062 for LOIs [2019-10-07 14:04:30,679 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:31,135 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:31,360 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:32,061 WARN L191 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:32,481 WARN L191 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:32,913 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:33,685 WARN L191 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:34,173 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:34,573 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:34,691 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:35,350 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:36,137 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 1222 DAG size of output: 1062 [2019-10-07 14:04:36,535 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:36,738 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:37,477 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:37,931 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:38,331 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:38,438 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:39,108 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:39,533 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:39,931 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:40,692 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:41,101 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:41,539 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:42,303 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:42,700 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:43,121 WARN L191 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:43,881 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:44,282 WARN L191 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:44,679 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:45,919 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:46,316 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:46,715 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:46,878 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:47,549 WARN L191 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:47,949 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:48,346 WARN L191 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:49,106 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:49,507 WARN L191 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:49,934 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:50,040 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:50,700 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:51,097 WARN L191 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:51,494 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 1062 [2019-10-07 14:04:52,259 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:53,648 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:54,315 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:54,424 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:55,113 WARN L191 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:56,297 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:04:56,960 WARN L191 SmtUtils]: Spent 659.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:57,091 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:04:57,750 WARN L191 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:58,411 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:59,074 WARN L191 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:04:59,869 WARN L191 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:00,590 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:01,256 WARN L191 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:01,365 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:02,042 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:03,537 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:05:04,205 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:04,999 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:06,182 WARN L191 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:05:06,848 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:06,954 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:07,626 WARN L191 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:08,300 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:05:08,965 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:05:09,073 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:09,755 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:10,423 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:11,095 WARN L191 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:11,209 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:11,885 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:05:12,589 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:13,263 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:13,376 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:14,056 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:05:15,286 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1228 DAG size of output: 1224 [2019-10-07 14:05:15,960 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:16,083 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:16,764 WARN L191 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:05:17,437 WARN L191 SmtUtils]: Spent 671.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:18,112 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:18,892 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:05:20,136 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:20,810 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:20,943 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:21,612 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:22,819 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:23,494 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:24,275 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:24,964 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:25,636 WARN L191 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:26,403 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:27,623 WARN L191 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:05:28,299 WARN L191 SmtUtils]: Spent 672.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:05:28,415 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:29,094 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:29,789 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:30,488 WARN L191 SmtUtils]: Spent 696.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:30,599 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:31,286 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:32,499 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:05:33,179 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:05:33,283 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:33,970 WARN L191 SmtUtils]: Spent 685.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:35,137 WARN L191 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 1231 DAG size of output: 1224 [2019-10-07 14:05:35,832 WARN L191 SmtUtils]: Spent 692.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:35,942 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:36,625 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:37,851 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1233 DAG size of output: 1226 [2019-10-07 14:05:38,533 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:05:38,649 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:39,334 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:05:40,583 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:41,256 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:42,046 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:43,256 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:43,938 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:44,052 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:44,730 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:45,407 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:46,084 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:46,199 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:46,875 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:48,309 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:48,989 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:49,101 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:49,778 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:50,996 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:05:51,669 WARN L191 SmtUtils]: Spent 669.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:51,790 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:05:52,468 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:53,143 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:53,828 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:54,602 WARN L191 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:05:55,873 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:05:56,558 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:05:56,672 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:05:57,351 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:58,604 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:05:59,286 WARN L191 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:05:59,397 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:00,077 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:01,299 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:06:01,975 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:06:02,079 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:02,762 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:03,924 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1231 DAG size of output: 1224 [2019-10-07 14:06:04,608 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:04,720 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:05,401 WARN L191 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:06,639 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:06:07,316 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:08,102 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:09,322 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:06:10,002 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:10,109 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:06:10,785 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:11,462 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:12,138 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:12,242 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:06:12,918 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:14,183 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:06:14,875 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:14,983 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:15,672 WARN L191 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:16,378 WARN L191 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:17,061 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:17,185 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:17,870 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:19,090 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1224 [2019-10-07 14:06:19,779 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:19,883 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:20,575 WARN L191 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:21,729 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 1231 DAG size of output: 1224 [2019-10-07 14:06:22,416 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:22,545 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:23,224 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:24,400 WARN L191 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 1233 DAG size of output: 1226 [2019-10-07 14:06:25,089 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:06:25,317 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:26,073 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:06:27,327 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:06:28,014 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:28,798 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:30,010 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:06:30,695 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:31,478 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:32,157 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:32,843 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:32,946 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:06:33,628 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:34,902 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:06:35,582 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:06:35,691 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:36,376 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:37,091 WARN L191 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:37,778 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:37,901 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:38,597 WARN L191 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:39,807 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:06:40,485 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:06:40,588 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:41,264 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:42,506 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1226 DAG size of output: 1222 [2019-10-07 14:06:43,184 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1222 [2019-10-07 14:06:43,292 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:43,971 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:45,200 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1228 DAG size of output: 1224 [2019-10-07 14:06:45,886 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:45,993 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:46,678 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:06:47,962 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1228 DAG size of output: 1224 [2019-10-07 14:06:48,647 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:48,755 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:49,440 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:06:50,673 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1228 DAG size of output: 1224 [2019-10-07 14:06:51,358 WARN L191 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:06:51,468 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:06:52,158 WARN L191 SmtUtils]: Spent 688.00 ms on a formula simplification that was a NOOP. DAG size: 1226 [2019-10-07 14:06:53,384 WARN L191 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:06:54,062 WARN L191 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:54,173 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:06:54,851 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:56,223 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:06:56,900 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:57,018 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:06:57,700 WARN L191 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:58,379 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:59,058 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:06:59,833 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:07:00,547 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:07:01,237 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:07:01,344 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:07:02,027 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:07:02,729 WARN L191 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:07:03,411 WARN L191 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:07:03,547 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 429 [2019-10-07 14:07:04,234 WARN L191 SmtUtils]: Spent 686.00 ms on a formula simplification that was a NOOP. DAG size: 1224 [2019-10-07 14:07:05,468 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:07:06,145 WARN L191 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:07:06,252 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:07:06,935 WARN L191 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:07:08,158 WARN L191 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 1222 DAG size of output: 1220 [2019-10-07 14:07:08,838 WARN L191 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:07:09,623 WARN L191 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:07:09,629 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1088 for LOIs [2019-10-07 14:07:10,085 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:07:10,532 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:07:11,310 WARN L191 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:07:11,320 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1038 for LOIs [2019-10-07 14:07:11,692 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 1038 [2019-10-07 14:07:12,066 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 1038 [2019-10-07 14:07:12,177 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 426 [2019-10-07 14:07:12,863 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 1220 [2019-10-07 14:07:13,108 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:07:13,109 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:07:13,115 INFO L168 Benchmark]: Toolchain (without parser) took 242948.32 ms. Allocated memory was 134.7 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 96.7 MB in the beginning and 245.7 MB in the end (delta: -149.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2019-10-07 14:07:13,115 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 118.0 MB in the beginning and 117.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:07:13,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1074.23 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 96.5 MB in the beginning and 137.6 MB in the end (delta: -41.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:07:13,116 INFO L168 Benchmark]: Boogie Preprocessor took 241.70 ms. Allocated memory is still 199.2 MB. Free memory was 137.6 MB in the beginning and 128.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:07:13,116 INFO L168 Benchmark]: RCFGBuilder took 5115.45 ms. Allocated memory was 199.2 MB in the beginning and 323.5 MB in the end (delta: 124.3 MB). Free memory was 127.6 MB in the beginning and 118.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 133.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:07:13,116 INFO L168 Benchmark]: TraceAbstraction took 236512.72 ms. Allocated memory was 323.5 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 118.1 MB in the beginning and 245.7 MB in the end (delta: -127.6 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2019-10-07 14:07:13,118 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 134.7 MB. Free memory was 118.0 MB in the beginning and 117.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1074.23 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 96.5 MB in the beginning and 137.6 MB in the end (delta: -41.1 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 241.70 ms. Allocated memory is still 199.2 MB. Free memory was 137.6 MB in the beginning and 128.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5115.45 ms. Allocated memory was 199.2 MB in the beginning and 323.5 MB in the end (delta: 124.3 MB). Free memory was 127.6 MB in the beginning and 118.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 133.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236512.72 ms. Allocated memory was 323.5 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 118.1 MB in the beginning and 245.7 MB in the end (delta: -127.6 MB). Peak memory consumption was 2.4 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...