java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:15:26,553 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:15:26,556 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:15:26,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:15:26,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:15:26,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:15:26,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:15:26,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:15:26,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:15:26,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:15:26,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:15:26,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:15:26,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:15:26,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:15:26,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:15:26,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:15:26,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:15:26,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:15:26,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:15:26,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:15:26,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:15:26,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:15:26,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:15:26,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:15:26,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:15:26,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:15:26,629 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:15:26,630 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:15:26,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:15:26,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:15:26,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:15:26,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:15:26,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:15:26,635 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:15:26,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:15:26,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:15:26,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:15:26,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:15:26,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:15:26,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:15:26,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:15:26,641 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 14:15:26,672 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:15:26,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:15:26,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:15:26,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:15:26,675 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:15:26,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:15:26,676 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:15:26,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:15:26,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:15:26,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:15:26,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:15:26,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:15:26,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:15:26,678 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:15:26,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:15:26,678 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:15:26,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:15:26,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:15:26,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:15:26,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:15:26,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:15:26,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:15:26,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:15:26,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:15:26,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:15:26,681 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:15:26,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:15:26,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:15:26,682 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 14:15:26,956 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:15:26,969 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:15:26,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:15:26,974 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:15:26,974 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:15:26,975 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c [2019-10-07 14:15:27,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ae0fbca/7fb8fde0890d44259e5b8201b500320d/FLAG14d2104fd [2019-10-07 14:15:27,674 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:15:27,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product19.cil.c [2019-10-07 14:15:27,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ae0fbca/7fb8fde0890d44259e5b8201b500320d/FLAG14d2104fd [2019-10-07 14:15:27,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ae0fbca/7fb8fde0890d44259e5b8201b500320d [2019-10-07 14:15:27,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:15:27,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:15:27,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:15:27,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:15:27,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:15:27,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:15:27" (1/1) ... [2019-10-07 14:15:27,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3389bb02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:27, skipping insertion in model container [2019-10-07 14:15:27,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:15:27" (1/1) ... [2019-10-07 14:15:27,939 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:15:28,022 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:15:28,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:15:28,708 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:15:28,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:15:28,960 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:15:28,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28 WrapperNode [2019-10-07 14:15:28,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:15:28,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:15:28,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:15:28,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:15:28,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28" (1/1) ... [2019-10-07 14:15:28,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28" (1/1) ... [2019-10-07 14:15:29,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28" (1/1) ... [2019-10-07 14:15:29,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28" (1/1) ... [2019-10-07 14:15:29,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28" (1/1) ... [2019-10-07 14:15:29,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28" (1/1) ... [2019-10-07 14:15:29,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28" (1/1) ... [2019-10-07 14:15:29,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:15:29,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:15:29,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:15:29,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:15:29,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28" (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 14:15:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:15:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:15:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:15:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:15:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:15:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:15:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:15:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:15:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:15:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:15:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:15:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:15:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:15:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:15:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:15:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:15:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:15:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:15:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:15:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:15:29,243 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:15:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:15:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:15:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:15:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:15:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:15:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:15:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:15:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:15:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:15:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:15:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:15:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:15:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:15:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:15:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:15:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:15:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:15:29,247 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:15:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:15:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:15:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:15:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:15:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:15:29,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:15:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:15:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:15:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:15:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:15:29,249 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:15:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:15:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:15:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:15:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:15:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:15:29,250 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:15:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:15:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:15:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:15:29,251 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:15:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:15:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:15:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:15:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:15:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:15:29,252 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:15:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:15:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:15:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:15:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:15:29,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:15:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:15:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:15:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:15:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:15:29,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:15:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:15:29,255 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:15:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:15:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:15:29,255 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:15:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:15:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:15:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:15:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:15:29,256 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:15:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:15:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:15:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:15:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:15:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:15:29,257 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:15:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:15:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:15:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:15:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:15:29,258 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:15:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:15:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:15:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:15:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:15:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:15:29,259 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:15:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:15:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:15:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:15:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:15:29,260 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:15:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:15:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:15:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:15:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:15:29,261 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:15:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:15:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:15:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:15:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:15:29,262 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:15:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:15:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:15:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:15:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:15:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:15:29,263 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:15:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:15:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:15:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:15:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:15:29,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:15:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:15:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:15:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:15:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:15:29,265 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:15:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:15:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:15:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:15:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:15:29,266 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:15:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:15:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:15:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:15:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:15:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:15:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:15:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:15:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:15:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:15:29,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:15:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:15:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:15:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:15:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:15:29,269 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:15:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:15:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:15:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:15:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:15:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:15:29,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:15:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:15:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:15:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:15:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:15:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:15:29,271 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:15:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:15:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:15:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:15:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:15:29,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:15:34,392 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:15:34,393 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:15:34,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:15:34 BoogieIcfgContainer [2019-10-07 14:15:34,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:15:34,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:15:34,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:15:34,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:15:34,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:15:27" (1/3) ... [2019-10-07 14:15:34,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39aeb2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:15:34, skipping insertion in model container [2019-10-07 14:15:34,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:15:28" (2/3) ... [2019-10-07 14:15:34,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39aeb2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:15:34, skipping insertion in model container [2019-10-07 14:15:34,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:15:34" (3/3) ... [2019-10-07 14:15:34,406 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product19.cil.c [2019-10-07 14:15:34,416 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:15:34,429 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:15:34,440 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:15:34,491 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:15:34,491 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:15:34,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:15:34,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:15:34,492 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:15:34,492 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:15:34,492 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:15:34,492 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:15:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states. [2019-10-07 14:15:34,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:15:34,544 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:34,545 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:34,548 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:34,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:34,554 INFO L82 PathProgramCache]: Analyzing trace with hash 805408432, now seen corresponding path program 1 times [2019-10-07 14:15:34,561 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:34,561 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:34,562 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:34,562 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:34,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:35,146 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:15:35,148 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:35,149 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:15:35,149 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:15:35,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:15:35,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:15:35,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:15:35,174 INFO L87 Difference]: Start difference. First operand 569 states. Second operand 2 states. [2019-10-07 14:15:35,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:15:35,247 INFO L93 Difference]: Finished difference Result 472 states and 703 transitions. [2019-10-07 14:15:35,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:15:35,249 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-10-07 14:15:35,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:15:35,296 INFO L225 Difference]: With dead ends: 472 [2019-10-07 14:15:35,296 INFO L226 Difference]: Without dead ends: 438 [2019-10-07 14:15:35,306 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:15:35,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-10-07 14:15:35,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 438. [2019-10-07 14:15:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2019-10-07 14:15:35,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 652 transitions. [2019-10-07 14:15:35,422 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 652 transitions. Word has length 112 [2019-10-07 14:15:35,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:15:35,425 INFO L462 AbstractCegarLoop]: Abstraction has 438 states and 652 transitions. [2019-10-07 14:15:35,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:15:35,426 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 652 transitions. [2019-10-07 14:15:35,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 14:15:35,442 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:35,443 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:35,443 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:35,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:35,444 INFO L82 PathProgramCache]: Analyzing trace with hash -2038950407, now seen corresponding path program 1 times [2019-10-07 14:15:35,445 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:35,445 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:35,445 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:35,446 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:35,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:35,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:15:35,940 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:35,941 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:15:35,941 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:15:35,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:15:35,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:15:35,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:15:35,944 INFO L87 Difference]: Start difference. First operand 438 states and 652 transitions. Second operand 7 states. [2019-10-07 14:15:39,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:15:39,881 INFO L93 Difference]: Finished difference Result 1241 states and 1893 transitions. [2019-10-07 14:15:39,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:15:39,882 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-07 14:15:39,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:15:39,892 INFO L225 Difference]: With dead ends: 1241 [2019-10-07 14:15:39,892 INFO L226 Difference]: Without dead ends: 845 [2019-10-07 14:15:39,898 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:15:39,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-07 14:15:39,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 820. [2019-10-07 14:15:39,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 820 states. [2019-10-07 14:15:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1247 transitions. [2019-10-07 14:15:39,979 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1247 transitions. Word has length 113 [2019-10-07 14:15:39,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:15:39,979 INFO L462 AbstractCegarLoop]: Abstraction has 820 states and 1247 transitions. [2019-10-07 14:15:39,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:15:39,980 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1247 transitions. [2019-10-07 14:15:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:15:39,983 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:39,984 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:39,984 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:39,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:39,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1250569818, now seen corresponding path program 1 times [2019-10-07 14:15:39,985 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:39,985 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:39,985 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:39,985 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:15:40,208 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:40,208 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:15:40,209 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:15:40,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:15:40,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:15:40,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:15:40,211 INFO L87 Difference]: Start difference. First operand 820 states and 1247 transitions. Second operand 4 states. [2019-10-07 14:15:41,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:15:41,922 INFO L93 Difference]: Finished difference Result 2444 states and 3814 transitions. [2019-10-07 14:15:41,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:15:41,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-10-07 14:15:41,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:15:41,941 INFO L225 Difference]: With dead ends: 2444 [2019-10-07 14:15:41,941 INFO L226 Difference]: Without dead ends: 1666 [2019-10-07 14:15:41,947 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:15:41,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2019-10-07 14:15:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1568. [2019-10-07 14:15:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1568 states. [2019-10-07 14:15:42,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1568 states to 1568 states and 2433 transitions. [2019-10-07 14:15:42,093 INFO L78 Accepts]: Start accepts. Automaton has 1568 states and 2433 transitions. Word has length 117 [2019-10-07 14:15:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:15:42,094 INFO L462 AbstractCegarLoop]: Abstraction has 1568 states and 2433 transitions. [2019-10-07 14:15:42,094 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:15:42,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1568 states and 2433 transitions. [2019-10-07 14:15:42,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:15:42,098 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:42,099 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:42,099 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:42,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:42,100 INFO L82 PathProgramCache]: Analyzing trace with hash -114542382, now seen corresponding path program 1 times [2019-10-07 14:15:42,100 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:42,100 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:42,100 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:42,101 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:42,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:15:42,341 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:42,341 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:15:42,342 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:15:42,342 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:15:42,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:15:42,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:15:42,343 INFO L87 Difference]: Start difference. First operand 1568 states and 2433 transitions. Second operand 4 states. [2019-10-07 14:15:44,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:15:44,095 INFO L93 Difference]: Finished difference Result 4635 states and 7354 transitions. [2019-10-07 14:15:44,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:15:44,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-10-07 14:15:44,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:15:44,125 INFO L225 Difference]: With dead ends: 4635 [2019-10-07 14:15:44,125 INFO L226 Difference]: Without dead ends: 3110 [2019-10-07 14:15:44,136 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:15:44,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3110 states. [2019-10-07 14:15:44,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3110 to 2989. [2019-10-07 14:15:44,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2989 states. [2019-10-07 14:15:44,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 4706 transitions. [2019-10-07 14:15:44,403 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 4706 transitions. Word has length 118 [2019-10-07 14:15:44,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:15:44,404 INFO L462 AbstractCegarLoop]: Abstraction has 2989 states and 4706 transitions. [2019-10-07 14:15:44,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:15:44,404 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 4706 transitions. [2019-10-07 14:15:44,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:15:44,409 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:44,409 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:44,409 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:44,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:44,410 INFO L82 PathProgramCache]: Analyzing trace with hash 742573672, now seen corresponding path program 1 times [2019-10-07 14:15:44,410 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:44,411 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:44,411 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:44,411 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:44,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:44,633 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:15:44,634 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:44,634 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:15:44,634 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:15:44,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:15:44,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:15:44,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:15:44,636 INFO L87 Difference]: Start difference. First operand 2989 states and 4706 transitions. Second operand 4 states. [2019-10-07 14:15:46,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:15:46,522 INFO L93 Difference]: Finished difference Result 8950 states and 14510 transitions. [2019-10-07 14:15:46,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:15:46,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-10-07 14:15:46,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:15:46,572 INFO L225 Difference]: With dead ends: 8950 [2019-10-07 14:15:46,572 INFO L226 Difference]: Without dead ends: 6006 [2019-10-07 14:15:46,592 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:15:46,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6006 states. [2019-10-07 14:15:46,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6006 to 5840. [2019-10-07 14:15:46,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5840 states. [2019-10-07 14:15:46,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5840 states to 5840 states and 9368 transitions. [2019-10-07 14:15:46,967 INFO L78 Accepts]: Start accepts. Automaton has 5840 states and 9368 transitions. Word has length 119 [2019-10-07 14:15:46,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:15:46,969 INFO L462 AbstractCegarLoop]: Abstraction has 5840 states and 9368 transitions. [2019-10-07 14:15:46,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:15:46,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5840 states and 9368 transitions. [2019-10-07 14:15:46,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:15:46,972 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:46,974 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:46,974 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:46,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:46,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1543371476, now seen corresponding path program 1 times [2019-10-07 14:15:46,975 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:46,975 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:46,975 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:46,979 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:47,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:47,196 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:15:47,196 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:47,196 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:15:47,197 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:15:47,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:15:47,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:15:47,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:15:47,200 INFO L87 Difference]: Start difference. First operand 5840 states and 9368 transitions. Second operand 4 states. [2019-10-07 14:15:49,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:15:49,338 INFO L93 Difference]: Finished difference Result 17605 states and 29553 transitions. [2019-10-07 14:15:49,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:15:49,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-10-07 14:15:49,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:15:49,458 INFO L225 Difference]: With dead ends: 17605 [2019-10-07 14:15:49,459 INFO L226 Difference]: Without dead ends: 11814 [2019-10-07 14:15:49,495 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:15:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11814 states. [2019-10-07 14:15:50,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11814 to 11559. [2019-10-07 14:15:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11559 states. [2019-10-07 14:15:50,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11559 states to 11559 states and 19102 transitions. [2019-10-07 14:15:50,383 INFO L78 Accepts]: Start accepts. Automaton has 11559 states and 19102 transitions. Word has length 120 [2019-10-07 14:15:50,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:15:50,384 INFO L462 AbstractCegarLoop]: Abstraction has 11559 states and 19102 transitions. [2019-10-07 14:15:50,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:15:50,384 INFO L276 IsEmpty]: Start isEmpty. Operand 11559 states and 19102 transitions. [2019-10-07 14:15:50,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:15:50,387 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:50,388 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:50,388 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:50,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:50,388 INFO L82 PathProgramCache]: Analyzing trace with hash 598303530, now seen corresponding path program 1 times [2019-10-07 14:15:50,389 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:50,389 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:50,389 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:50,389 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:50,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:50,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:15:50,555 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:50,555 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:15:50,555 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:15:50,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:15:50,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:15:50,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:15:50,557 INFO L87 Difference]: Start difference. First operand 11559 states and 19102 transitions. Second operand 4 states. [2019-10-07 14:15:53,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:15:53,023 INFO L93 Difference]: Finished difference Result 34992 states and 62281 transitions. [2019-10-07 14:15:53,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:15:53,024 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-07 14:15:53,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:15:53,199 INFO L225 Difference]: With dead ends: 34992 [2019-10-07 14:15:53,200 INFO L226 Difference]: Without dead ends: 23478 [2019-10-07 14:15:53,276 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:15:53,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23478 states. [2019-10-07 14:15:55,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23478 to 22896. [2019-10-07 14:15:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22896 states. [2019-10-07 14:15:55,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22896 states to 22896 states and 39473 transitions. [2019-10-07 14:15:55,808 INFO L78 Accepts]: Start accepts. Automaton has 22896 states and 39473 transitions. Word has length 121 [2019-10-07 14:15:55,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:15:55,809 INFO L462 AbstractCegarLoop]: Abstraction has 22896 states and 39473 transitions. [2019-10-07 14:15:55,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:15:55,809 INFO L276 IsEmpty]: Start isEmpty. Operand 22896 states and 39473 transitions. [2019-10-07 14:15:55,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:15:55,818 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:55,818 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:55,818 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:55,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:55,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1065571735, now seen corresponding path program 1 times [2019-10-07 14:15:55,819 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:55,819 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:55,819 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:55,819 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:55,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:55,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:15:56,018 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:56,018 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:15:56,019 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:15:56,020 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:15:56,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:15:56,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:15:56,021 INFO L87 Difference]: Start difference. First operand 22896 states and 39473 transitions. Second operand 5 states. [2019-10-07 14:15:56,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:15:56,700 INFO L93 Difference]: Finished difference Result 46171 states and 82637 transitions. [2019-10-07 14:15:56,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:15:56,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 181 [2019-10-07 14:15:56,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:15:57,092 INFO L225 Difference]: With dead ends: 46171 [2019-10-07 14:15:57,093 INFO L226 Difference]: Without dead ends: 23318 [2019-10-07 14:15:57,147 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 14:15:57,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23318 states. [2019-10-07 14:15:58,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23318 to 23168. [2019-10-07 14:15:58,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23168 states. [2019-10-07 14:15:58,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23168 states to 23168 states and 39988 transitions. [2019-10-07 14:15:58,473 INFO L78 Accepts]: Start accepts. Automaton has 23168 states and 39988 transitions. Word has length 181 [2019-10-07 14:15:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:15:58,474 INFO L462 AbstractCegarLoop]: Abstraction has 23168 states and 39988 transitions. [2019-10-07 14:15:58,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:15:58,474 INFO L276 IsEmpty]: Start isEmpty. Operand 23168 states and 39988 transitions. [2019-10-07 14:15:58,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 14:15:58,483 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:15:58,483 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:15:58,483 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:15:58,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:15:58,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1351888197, now seen corresponding path program 1 times [2019-10-07 14:15:58,484 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:15:58,484 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:58,484 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:58,484 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:15:58,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:15:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:15:59,015 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:15:59,016 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:15:59,016 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 14:15:59,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:15:59,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 3421 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:15:59,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:15:59,747 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-07 14:15:59,747 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:16:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:16:00,290 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:16:00,290 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:16:00,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:16:00,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:16:00,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:16:00,292 INFO L87 Difference]: Start difference. First operand 23168 states and 39988 transitions. Second operand 4 states. [2019-10-07 14:16:02,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:16:02,805 INFO L93 Difference]: Finished difference Result 48789 states and 87664 transitions. [2019-10-07 14:16:02,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:16:02,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2019-10-07 14:16:02,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:16:03,021 INFO L225 Difference]: With dead ends: 48789 [2019-10-07 14:16:03,021 INFO L226 Difference]: Without dead ends: 25664 [2019-10-07 14:16:03,192 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 371 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 14:16:03,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25664 states. [2019-10-07 14:16:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25664 to 25664. [2019-10-07 14:16:05,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25664 states. [2019-10-07 14:16:05,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25664 states to 25664 states and 44660 transitions. [2019-10-07 14:16:05,445 INFO L78 Accepts]: Start accepts. Automaton has 25664 states and 44660 transitions. Word has length 186 [2019-10-07 14:16:05,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:16:05,446 INFO L462 AbstractCegarLoop]: Abstraction has 25664 states and 44660 transitions. [2019-10-07 14:16:05,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:16:05,446 INFO L276 IsEmpty]: Start isEmpty. Operand 25664 states and 44660 transitions. [2019-10-07 14:16:05,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 14:16:05,459 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:16:05,460 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:16:05,887 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:16:05,887 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:16:05,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:16:05,888 INFO L82 PathProgramCache]: Analyzing trace with hash -2094365273, now seen corresponding path program 1 times [2019-10-07 14:16:05,888 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:16:05,888 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:05,888 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:05,888 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:05,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:16:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:06,115 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:16:06,115 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:06,115 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:16:06,115 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 14:16:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:06,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 3426 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:16:06,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:16:06,830 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-07 14:16:06,830 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:16:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:16:07,332 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:16:07,332 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:16:07,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:16:07,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:16:07,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:16:07,336 INFO L87 Difference]: Start difference. First operand 25664 states and 44660 transitions. Second operand 4 states. [2019-10-07 14:16:09,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:16:09,814 INFO L93 Difference]: Finished difference Result 53781 states and 96942 transitions. [2019-10-07 14:16:09,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:16:09,815 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2019-10-07 14:16:09,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:16:09,983 INFO L225 Difference]: With dead ends: 53781 [2019-10-07 14:16:09,983 INFO L226 Difference]: Without dead ends: 28160 [2019-10-07 14:16:10,050 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 379 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 14:16:10,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28160 states. [2019-10-07 14:16:11,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28160 to 28160. [2019-10-07 14:16:11,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28160 states. [2019-10-07 14:16:11,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28160 states to 28160 states and 49332 transitions. [2019-10-07 14:16:11,481 INFO L78 Accepts]: Start accepts. Automaton has 28160 states and 49332 transitions. Word has length 191 [2019-10-07 14:16:11,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:16:11,482 INFO L462 AbstractCegarLoop]: Abstraction has 28160 states and 49332 transitions. [2019-10-07 14:16:11,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:16:11,482 INFO L276 IsEmpty]: Start isEmpty. Operand 28160 states and 49332 transitions. [2019-10-07 14:16:11,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-10-07 14:16:11,494 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:16:11,494 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:16:11,706 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:16:11,706 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:16:11,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:16:11,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1590867573, now seen corresponding path program 1 times [2019-10-07 14:16:11,707 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:16:11,708 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:11,708 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:11,708 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:11,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:16:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:11,999 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:16:12,000 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:12,000 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:16:12,000 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 14:16:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:12,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 3430 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:16:12,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:16:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:16:12,746 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:16:12,973 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:16:13,344 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:16:13,345 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:16:13,345 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:16:13,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:16:13,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:16:13,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:16:13,347 INFO L87 Difference]: Start difference. First operand 28160 states and 49332 transitions. Second operand 4 states. [2019-10-07 14:16:14,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:16:14,519 INFO L93 Difference]: Finished difference Result 58773 states and 106220 transitions. [2019-10-07 14:16:14,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:16:14,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2019-10-07 14:16:14,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:16:14,691 INFO L225 Difference]: With dead ends: 58773 [2019-10-07 14:16:14,691 INFO L226 Difference]: Without dead ends: 30656 [2019-10-07 14:16:14,769 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 387 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:16:14,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30656 states. [2019-10-07 14:16:16,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30656 to 30656. [2019-10-07 14:16:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30656 states. [2019-10-07 14:16:16,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30656 states to 30656 states and 54004 transitions. [2019-10-07 14:16:16,500 INFO L78 Accepts]: Start accepts. Automaton has 30656 states and 54004 transitions. Word has length 195 [2019-10-07 14:16:16,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:16:16,501 INFO L462 AbstractCegarLoop]: Abstraction has 30656 states and 54004 transitions. [2019-10-07 14:16:16,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:16:16,501 INFO L276 IsEmpty]: Start isEmpty. Operand 30656 states and 54004 transitions. [2019-10-07 14:16:16,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 14:16:16,510 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:16:16,511 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:16:16,720 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:16:16,720 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:16:16,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:16:16,721 INFO L82 PathProgramCache]: Analyzing trace with hash -395540195, now seen corresponding path program 1 times [2019-10-07 14:16:16,721 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:16:16,721 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:16,721 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:16,721 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:16,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:16:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:16:16,936 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:16,936 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:16:16,936 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 14:16:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:17,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 3433 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:16:17,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:16:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:16:17,661 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:16:18,086 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:16:18,087 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:16:18,087 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:16:18,087 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:16:18,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:16:18,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:16:18,088 INFO L87 Difference]: Start difference. First operand 30656 states and 54004 transitions. Second operand 4 states. [2019-10-07 14:16:18,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:16:18,865 INFO L93 Difference]: Finished difference Result 63765 states and 115498 transitions. [2019-10-07 14:16:18,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:16:18,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 198 [2019-10-07 14:16:18,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:16:20,528 INFO L225 Difference]: With dead ends: 63765 [2019-10-07 14:16:20,528 INFO L226 Difference]: Without dead ends: 33152 [2019-10-07 14:16:20,596 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 393 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 14:16:20,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33152 states. [2019-10-07 14:16:21,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33152 to 33152. [2019-10-07 14:16:21,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33152 states. [2019-10-07 14:16:21,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33152 states to 33152 states and 58676 transitions. [2019-10-07 14:16:21,731 INFO L78 Accepts]: Start accepts. Automaton has 33152 states and 58676 transitions. Word has length 198 [2019-10-07 14:16:21,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:16:21,731 INFO L462 AbstractCegarLoop]: Abstraction has 33152 states and 58676 transitions. [2019-10-07 14:16:21,731 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:16:21,731 INFO L276 IsEmpty]: Start isEmpty. Operand 33152 states and 58676 transitions. [2019-10-07 14:16:21,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-07 14:16:21,739 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:16:21,739 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:16:21,948 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:16:21,949 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:16:21,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:16:21,949 INFO L82 PathProgramCache]: Analyzing trace with hash 674698287, now seen corresponding path program 1 times [2019-10-07 14:16:21,949 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:16:21,949 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:21,950 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:21,950 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:21,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:16:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:16:22,239 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:22,240 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:16:22,240 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 14:16:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:23,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 3429 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:16:23,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:16:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:16:23,111 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:16:23,630 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:16:23,630 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:16:23,631 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [9] total 16 [2019-10-07 14:16:23,631 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:16:23,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:16:23,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:16:23,633 INFO L87 Difference]: Start difference. First operand 33152 states and 58676 transitions. Second operand 9 states. [2019-10-07 14:16:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:16:25,754 INFO L93 Difference]: Finished difference Result 34558 states and 65635 transitions. [2019-10-07 14:16:25,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:16:25,754 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2019-10-07 14:16:25,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:16:25,930 INFO L225 Difference]: With dead ends: 34558 [2019-10-07 14:16:25,930 INFO L226 Difference]: Without dead ends: 34339 [2019-10-07 14:16:25,953 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 397 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:16:25,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34339 states. [2019-10-07 14:16:27,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34339 to 33635. [2019-10-07 14:16:27,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33635 states. [2019-10-07 14:16:27,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33635 states to 33635 states and 60994 transitions. [2019-10-07 14:16:27,185 INFO L78 Accepts]: Start accepts. Automaton has 33635 states and 60994 transitions. Word has length 200 [2019-10-07 14:16:27,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:16:27,185 INFO L462 AbstractCegarLoop]: Abstraction has 33635 states and 60994 transitions. [2019-10-07 14:16:27,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:16:27,186 INFO L276 IsEmpty]: Start isEmpty. Operand 33635 states and 60994 transitions. [2019-10-07 14:16:27,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-07 14:16:27,195 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:16:27,195 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:16:27,404 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:16:27,405 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:16:27,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:16:27,405 INFO L82 PathProgramCache]: Analyzing trace with hash 631759171, now seen corresponding path program 1 times [2019-10-07 14:16:27,406 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:16:27,406 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:27,406 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:27,406 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:16:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:16:27,666 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:27,666 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:16:27,666 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 14:16:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:28,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 3444 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:16:28,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:16:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:16:29,039 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:16:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:16:29,467 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:16:29,468 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [9] total 12 [2019-10-07 14:16:29,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:16:29,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:16:29,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:16:29,469 INFO L87 Difference]: Start difference. First operand 33635 states and 60994 transitions. Second operand 5 states. [2019-10-07 14:16:29,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:16:29,940 INFO L93 Difference]: Finished difference Result 33854 states and 61238 transitions. [2019-10-07 14:16:29,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:16:29,940 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 205 [2019-10-07 14:16:29,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:16:30,079 INFO L225 Difference]: With dead ends: 33854 [2019-10-07 14:16:30,079 INFO L226 Difference]: Without dead ends: 33635 [2019-10-07 14:16:30,098 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 411 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:16:30,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33635 states. [2019-10-07 14:16:32,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33635 to 33635. [2019-10-07 14:16:32,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33635 states. [2019-10-07 14:16:32,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33635 states to 33635 states and 60901 transitions. [2019-10-07 14:16:32,612 INFO L78 Accepts]: Start accepts. Automaton has 33635 states and 60901 transitions. Word has length 205 [2019-10-07 14:16:32,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:16:32,612 INFO L462 AbstractCegarLoop]: Abstraction has 33635 states and 60901 transitions. [2019-10-07 14:16:32,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:16:32,612 INFO L276 IsEmpty]: Start isEmpty. Operand 33635 states and 60901 transitions. [2019-10-07 14:16:32,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2019-10-07 14:16:32,625 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:16:32,626 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:16:32,834 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:16:32,835 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:16:32,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:16:32,835 INFO L82 PathProgramCache]: Analyzing trace with hash -531879675, now seen corresponding path program 1 times [2019-10-07 14:16:32,836 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:16:32,836 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:32,836 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:32,836 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:16:32,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:16:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:33,096 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 14:16:33,096 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:16:33,096 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:16:33,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:16:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:16:33,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 3487 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:16:33,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:16:33,999 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:16:34,000 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:16:34,657 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:16:34,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:16:34,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:16:34,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:16:34,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:16:34,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:16:34,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:16:34,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:16:34,795 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 14:16:34,795 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:16:34,828 INFO L162 IcfgInterpreter]: Started Sifa with 184 locations of interest [2019-10-07 14:16:34,828 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:16:34,835 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:16:34,843 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:16:34,844 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:17:13,724 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 764 [2019-10-07 14:17:18,500 WARN L191 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:17:19,076 WARN L191 SmtUtils]: Spent 566.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:17:19,456 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:17:19,698 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:17:20,246 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:17:20,805 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:17:21,281 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:17:21,899 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:17:22,818 WARN L191 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 1042 DAG size of output: 1040 [2019-10-07 14:17:23,287 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:17:23,805 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:17:24,261 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:17:24,776 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:17:25,280 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:17:25,301 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 391 for LOIs [2019-10-07 14:17:25,593 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:17:25,699 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:17:26,053 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:17:26,055 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1090 for LOIs [2019-10-07 14:17:26,512 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:26,972 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:27,097 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:27,870 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:28,338 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:28,790 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:28,918 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:29,689 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:30,320 WARN L191 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:30,781 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:30,911 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:31,677 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:32,548 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 1262 DAG size of output: 1090 [2019-10-07 14:17:32,991 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:33,271 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:34,320 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:34,783 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:35,234 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:35,353 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:36,137 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:36,588 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:37,071 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:37,198 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:37,963 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:38,408 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:38,860 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:38,981 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:39,750 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:40,205 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:40,659 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:40,779 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:41,542 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:41,994 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:42,454 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:42,580 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:43,358 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:43,809 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:44,258 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:44,379 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:45,146 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:45,599 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:46,058 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:46,180 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:46,942 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:47,405 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:47,854 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:47,973 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:48,739 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:49,203 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:49,653 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1090 [2019-10-07 14:17:49,772 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:50,544 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:51,355 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:52,127 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:52,348 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:53,130 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:54,770 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:17:55,550 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:55,681 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:56,443 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:57,213 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:57,982 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:58,102 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:17:58,869 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:59,905 WARN L191 SmtUtils]: Spent 997.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:00,682 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:00,815 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:01,595 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:03,887 WARN L191 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:18:04,663 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:04,797 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:05,580 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:06,886 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:18:07,667 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:07,789 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:08,569 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:09,374 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:18:10,156 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:18:10,308 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:11,094 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:18:11,873 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:12,658 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:12,792 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:13,573 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:14,380 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:15,167 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:15,294 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:16,087 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:16,881 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:17,667 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:17,805 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:18,587 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:19,387 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:20,173 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:20,297 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:21,076 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:22,504 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:18:23,287 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:23,506 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:18:24,307 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:25,675 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:18:26,449 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:26,599 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:18:27,361 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:28,137 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:28,926 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:29,046 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:18:29,818 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:31,172 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:18:31,945 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:32,075 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:32,845 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:33,631 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:34,403 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:34,534 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:35,315 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:36,587 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:18:37,361 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:37,483 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:38,265 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:18:39,652 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1269 [2019-10-07 14:18:40,430 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:18:40,559 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:41,337 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:18:42,737 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1271 [2019-10-07 14:18:43,525 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:43,657 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:18:44,436 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:18:45,869 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:18:46,637 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:46,767 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:18:47,526 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:48,905 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:18:49,669 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:49,798 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:18:50,552 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:51,316 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:52,083 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:52,203 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:18:52,975 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:54,404 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:18:55,176 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:55,302 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:18:56,062 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:57,430 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:18:58,203 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:58,335 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:18:59,132 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:59,902 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:00,659 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:00,784 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:19:01,549 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:02,935 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:19:03,709 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:03,843 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:04,632 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:05,419 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:06,196 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:06,351 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:07,145 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:07,917 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:08,695 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:08,817 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:09,618 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:10,997 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1262 [2019-10-07 14:19:11,774 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:19:11,906 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:12,683 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:13,988 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1264 [2019-10-07 14:19:14,767 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:14,894 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:15,690 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:19:17,027 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1264 [2019-10-07 14:19:17,782 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:17,908 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:18,664 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:19:19,953 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:19:20,708 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:20,859 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:21,612 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:19:23,055 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:19:23,811 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:23,962 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:19:24,720 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:26,060 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:19:26,810 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:26,936 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:19:27,700 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:28,469 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:29,213 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:29,332 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:19:30,086 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:30,870 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:31,640 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:31,768 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:32,531 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:33,809 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:19:34,562 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:19:34,689 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:35,449 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:36,718 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:19:37,467 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:19:37,587 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:38,342 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:39,696 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:19:40,472 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:19:40,599 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:41,359 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:42,741 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:19:43,503 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:43,628 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:19:44,387 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:45,761 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:19:46,545 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:46,670 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:19:47,426 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:48,828 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:19:49,602 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:49,739 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:19:50,524 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:51,888 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:19:52,651 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:52,776 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:19:53,552 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:54,326 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:55,094 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:55,213 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:19:55,994 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:56,809 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:57,586 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:57,716 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:19:58,501 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:19:59,895 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:20:00,667 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:00,796 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:20:01,566 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:02,947 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:20:03,707 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:03,831 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:20:04,589 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:05,930 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:20:06,702 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:20:06,828 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:20:07,583 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:08,856 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:20:09,627 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:09,763 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:20:10,547 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:20:12,124 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:20:12,921 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:13,046 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:13,825 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:15,211 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:20:15,988 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:16,124 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:16,909 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:17,674 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:18,423 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:18,544 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:19,315 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:20,117 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:20,891 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:21,024 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:20:21,802 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:23,099 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:20:23,891 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:20:24,040 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:20:24,823 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:20:24,829 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1114 for LOIs [2019-10-07 14:20:25,320 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:20:25,808 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:20:25,935 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:26,716 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:27,261 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:20:27,776 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:20:27,899 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:28,660 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:29,733 WARN L191 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1124 [2019-10-07 14:20:30,234 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:20:30,356 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:31,106 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:31,632 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:20:32,131 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:20:32,249 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:33,003 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:33,513 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:20:34,013 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:20:34,133 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:34,889 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:35,408 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:20:35,922 WARN L191 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:20:36,042 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:20:36,810 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:20:37,077 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:37,079 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:20:37,085 INFO L168 Benchmark]: Toolchain (without parser) took 309160.62 ms. Allocated memory was 146.3 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 100.5 MB in the beginning and 875.4 MB in the end (delta: -774.9 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2019-10-07 14:20:37,086 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 14:20:37,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1035.38 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 100.3 MB in the beginning and 144.4 MB in the end (delta: -44.1 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:20:37,086 INFO L168 Benchmark]: Boogie Preprocessor took 180.37 ms. Allocated memory is still 204.5 MB. Free memory was 144.4 MB in the beginning and 134.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:20:37,087 INFO L168 Benchmark]: RCFGBuilder took 5252.37 ms. Allocated memory was 204.5 MB in the beginning and 297.3 MB in the end (delta: 92.8 MB). Free memory was 134.8 MB in the beginning and 186.0 MB in the end (delta: -51.2 MB). Peak memory consumption was 149.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:20:37,087 INFO L168 Benchmark]: TraceAbstraction took 302686.05 ms. Allocated memory was 297.3 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 186.0 MB in the beginning and 875.4 MB in the end (delta: -689.4 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2019-10-07 14:20:37,088 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1035.38 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 100.3 MB in the beginning and 144.4 MB in the end (delta: -44.1 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 180.37 ms. Allocated memory is still 204.5 MB. Free memory was 144.4 MB in the beginning and 134.8 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5252.37 ms. Allocated memory was 204.5 MB in the beginning and 297.3 MB in the end (delta: 92.8 MB). Free memory was 134.8 MB in the beginning and 186.0 MB in the end (delta: -51.2 MB). Peak memory consumption was 149.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 302686.05 ms. Allocated memory was 297.3 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 186.0 MB in the beginning and 875.4 MB in the end (delta: -689.4 MB). Peak memory consumption was 2.3 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...