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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:12:25,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:12:25,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:12:25,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:12:25,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:12:25,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:12:25,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:12:25,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:12:25,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:12:25,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:12:25,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:12:25,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:12:25,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:12:25,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:12:25,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:12:25,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:12:25,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:12:25,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:12:25,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:12:25,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:12:25,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:12:25,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:12:25,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:12:25,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:12:25,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:12:25,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:12:25,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:12:25,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:12:25,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:12:25,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:12:25,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:12:25,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:12:25,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:12:25,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:12:25,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:12:25,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:12:25,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:12:25,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:12:25,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:12:25,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:12:25,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:12:25,916 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 14:12:25,950 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:12:25,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:12:25,952 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:12:25,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:12:25,952 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:12:25,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:12:25,953 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:12:25,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:12:25,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:12:25,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:12:25,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:12:25,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:12:25,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:12:25,954 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:12:25,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:12:25,956 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:12:25,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:12:25,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:12:25,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:12:25,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:12:25,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:12:25,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:12:25,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:12:25,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:12:25,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:12:25,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:12:25,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:12:25,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:12:25,960 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 14:12:26,237 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:12:26,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:12:26,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:12:26,260 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:12:26,261 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:12:26,261 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product03.cil.c [2019-10-07 14:12:26,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/744949b12/ebbb2fd015484aba86bb7814eec0280e/FLAG9bb8e59f9 [2019-10-07 14:12:26,926 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:12:26,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product03.cil.c [2019-10-07 14:12:26,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/744949b12/ebbb2fd015484aba86bb7814eec0280e/FLAG9bb8e59f9 [2019-10-07 14:12:27,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/744949b12/ebbb2fd015484aba86bb7814eec0280e [2019-10-07 14:12:27,164 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:12:27,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:12:27,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:12:27,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:12:27,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:12:27,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:12:27" (1/1) ... [2019-10-07 14:12:27,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a57a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:27, skipping insertion in model container [2019-10-07 14:12:27,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:12:27" (1/1) ... [2019-10-07 14:12:27,186 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:12:27,263 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:12:27,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:12:27,977 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:12:28,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:12:28,170 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:12:28,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28 WrapperNode [2019-10-07 14:12:28,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:12:28,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:12:28,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:12:28,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:12:28,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28" (1/1) ... [2019-10-07 14:12:28,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28" (1/1) ... [2019-10-07 14:12:28,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28" (1/1) ... [2019-10-07 14:12:28,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28" (1/1) ... [2019-10-07 14:12:28,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28" (1/1) ... [2019-10-07 14:12:28,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28" (1/1) ... [2019-10-07 14:12:28,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28" (1/1) ... [2019-10-07 14:12:28,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:12:28,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:12:28,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:12:28,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:12:28,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28" (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 14:12:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:12:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:12:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:12:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:12:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:12:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:12:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:12:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:12:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:12:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:12:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:12:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:12:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:12:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:12:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:12:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:12:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:12:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:12:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:12:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:12:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:12:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:12:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:12:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:12:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:12:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:12:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:12:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:12:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:12:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:12:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:12:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:12:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:12:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:12:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:12:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:12:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:12:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:12:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:12:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:12:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:12:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:12:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:12:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:12:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:12:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:12:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:12:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:12:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:12:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:12:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:12:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:12:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:12:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:12:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:12:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:12:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:12:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__base [2019-10-07 14:12:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:12:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:12:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:12:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-07 14:12:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:12:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:12:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:12:28,442 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:12:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:12:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:12:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:12:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:12:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:12:28,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:12:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:12:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:12:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:12:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:12:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:12:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:12:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:12:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:12:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:12:28,445 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:12:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:12:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:12:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:12:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:12:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:12:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:12:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:12:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:12:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:12:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:12:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:12:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:12:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:12:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:12:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:12:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:12:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:12:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:12:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:12:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:12:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:12:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:12:28,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:12:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:12:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:12:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:12:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:12:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:12:28,450 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:12:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:12:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:12:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:12:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:12:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:12:28,451 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:12:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:12:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:12:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:12:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:12:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:12:28,452 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:12:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:12:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:12:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:12:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:12:28,453 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:12:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:12:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:12:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:12:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:12:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:12:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:12:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:12:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:12:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:12:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:12:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:12:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:12:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:12:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:12:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:12:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:12:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:12:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:12:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:12:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:12:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:12:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:12:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:12:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:12:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:12:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__base [2019-10-07 14:12:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:12:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:12:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-07 14:12:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:12:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:12:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:12:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:12:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:12:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:12:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:12:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:12:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:12:28,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:12:33,007 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:12:33,007 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:12:33,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:12:33 BoogieIcfgContainer [2019-10-07 14:12:33,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:12:33,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:12:33,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:12:33,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:12:33,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:12:27" (1/3) ... [2019-10-07 14:12:33,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a01087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:12:33, skipping insertion in model container [2019-10-07 14:12:33,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:28" (2/3) ... [2019-10-07 14:12:33,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a01087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:12:33, skipping insertion in model container [2019-10-07 14:12:33,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:12:33" (3/3) ... [2019-10-07 14:12:33,022 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product03.cil.c [2019-10-07 14:12:33,032 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:12:33,041 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:12:33,053 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:12:33,099 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:12:33,099 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:12:33,099 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:12:33,099 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:12:33,099 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:12:33,099 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:12:33,100 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:12:33,100 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:12:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states. [2019-10-07 14:12:33,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:12:33,168 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:33,169 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 14:12:33,173 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:33,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:33,178 INFO L82 PathProgramCache]: Analyzing trace with hash 701582024, now seen corresponding path program 1 times [2019-10-07 14:12:33,188 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:33,188 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:33,188 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:33,189 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:33,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:33,827 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 14:12:33,828 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:33,828 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:33,828 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:12:33,833 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:12:33,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:12:33,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:12:33,851 INFO L87 Difference]: Start difference. First operand 557 states. Second operand 2 states. [2019-10-07 14:12:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:33,951 INFO L93 Difference]: Finished difference Result 460 states and 690 transitions. [2019-10-07 14:12:33,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:12:33,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-10-07 14:12:33,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:33,997 INFO L225 Difference]: With dead ends: 460 [2019-10-07 14:12:33,998 INFO L226 Difference]: Without dead ends: 426 [2019-10-07 14:12:34,006 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 14:12:34,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2019-10-07 14:12:34,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2019-10-07 14:12:34,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-10-07 14:12:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 639 transitions. [2019-10-07 14:12:34,123 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 639 transitions. Word has length 112 [2019-10-07 14:12:34,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:34,126 INFO L462 AbstractCegarLoop]: Abstraction has 426 states and 639 transitions. [2019-10-07 14:12:34,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:12:34,126 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 639 transitions. [2019-10-07 14:12:34,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 14:12:34,133 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:34,133 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 14:12:34,134 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:34,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:34,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1004921316, now seen corresponding path program 1 times [2019-10-07 14:12:34,134 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:34,134 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:34,135 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:34,135 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:34,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:34,517 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 14:12:34,518 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:34,518 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:34,518 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:12:34,520 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:12:34,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:12:34,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:12:34,521 INFO L87 Difference]: Start difference. First operand 426 states and 639 transitions. Second operand 7 states. [2019-10-07 14:12:38,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:38,060 INFO L93 Difference]: Finished difference Result 1205 states and 1854 transitions. [2019-10-07 14:12:38,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:12:38,061 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-07 14:12:38,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:38,070 INFO L225 Difference]: With dead ends: 1205 [2019-10-07 14:12:38,070 INFO L226 Difference]: Without dead ends: 821 [2019-10-07 14:12:38,075 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 14:12:38,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2019-10-07 14:12:38,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 796. [2019-10-07 14:12:38,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 796 states. [2019-10-07 14:12:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1221 transitions. [2019-10-07 14:12:38,143 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1221 transitions. Word has length 113 [2019-10-07 14:12:38,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:38,144 INFO L462 AbstractCegarLoop]: Abstraction has 796 states and 1221 transitions. [2019-10-07 14:12:38,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:12:38,144 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1221 transitions. [2019-10-07 14:12:38,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:12:38,152 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:38,153 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 14:12:38,153 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:38,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:38,154 INFO L82 PathProgramCache]: Analyzing trace with hash 262416038, now seen corresponding path program 1 times [2019-10-07 14:12:38,154 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:38,154 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:38,154 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:38,155 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:38,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:38,427 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 14:12:38,427 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:38,427 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:38,428 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:38,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:38,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:38,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:38,431 INFO L87 Difference]: Start difference. First operand 796 states and 1221 transitions. Second operand 4 states. [2019-10-07 14:12:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:39,980 INFO L93 Difference]: Finished difference Result 2382 states and 3748 transitions. [2019-10-07 14:12:39,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:39,981 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-10-07 14:12:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:40,000 INFO L225 Difference]: With dead ends: 2382 [2019-10-07 14:12:40,000 INFO L226 Difference]: Without dead ends: 1628 [2019-10-07 14:12:40,006 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 14:12:40,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2019-10-07 14:12:40,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1530. [2019-10-07 14:12:40,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1530 states. [2019-10-07 14:12:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 2393 transitions. [2019-10-07 14:12:40,132 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 2393 transitions. Word has length 117 [2019-10-07 14:12:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:40,133 INFO L462 AbstractCegarLoop]: Abstraction has 1530 states and 2393 transitions. [2019-10-07 14:12:40,133 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:12:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 2393 transitions. [2019-10-07 14:12:40,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:12:40,141 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:40,141 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 14:12:40,142 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:40,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:40,142 INFO L82 PathProgramCache]: Analyzing trace with hash -456335281, now seen corresponding path program 1 times [2019-10-07 14:12:40,143 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:40,143 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:40,143 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:40,143 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:40,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:40,404 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 14:12:40,404 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:40,405 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:40,405 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:40,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:40,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:40,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:40,406 INFO L87 Difference]: Start difference. First operand 1530 states and 2393 transitions. Second operand 4 states. [2019-10-07 14:12:42,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:42,121 INFO L93 Difference]: Finished difference Result 4531 states and 7246 transitions. [2019-10-07 14:12:42,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:42,121 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 118 [2019-10-07 14:12:42,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:42,148 INFO L225 Difference]: With dead ends: 4531 [2019-10-07 14:12:42,148 INFO L226 Difference]: Without dead ends: 3044 [2019-10-07 14:12:42,157 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 14:12:42,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2019-10-07 14:12:42,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2923. [2019-10-07 14:12:42,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2923 states. [2019-10-07 14:12:42,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2923 states to 2923 states and 4638 transitions. [2019-10-07 14:12:42,402 INFO L78 Accepts]: Start accepts. Automaton has 2923 states and 4638 transitions. Word has length 118 [2019-10-07 14:12:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:42,403 INFO L462 AbstractCegarLoop]: Abstraction has 2923 states and 4638 transitions. [2019-10-07 14:12:42,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:12:42,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2923 states and 4638 transitions. [2019-10-07 14:12:42,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:12:42,406 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:42,406 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 14:12:42,407 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:42,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:42,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1262785784, now seen corresponding path program 1 times [2019-10-07 14:12:42,407 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:42,408 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:42,408 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:42,408 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:42,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:42,545 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 14:12:42,545 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:42,546 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:42,546 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:42,546 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:42,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:42,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:42,547 INFO L87 Difference]: Start difference. First operand 2923 states and 4638 transitions. Second operand 4 states. [2019-10-07 14:12:44,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:44,251 INFO L93 Difference]: Finished difference Result 8762 states and 14318 transitions. [2019-10-07 14:12:44,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:44,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 119 [2019-10-07 14:12:44,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:44,294 INFO L225 Difference]: With dead ends: 8762 [2019-10-07 14:12:44,294 INFO L226 Difference]: Without dead ends: 5884 [2019-10-07 14:12:44,310 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 14:12:44,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2019-10-07 14:12:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5718. [2019-10-07 14:12:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5718 states. [2019-10-07 14:12:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5718 states to 5718 states and 9244 transitions. [2019-10-07 14:12:44,631 INFO L78 Accepts]: Start accepts. Automaton has 5718 states and 9244 transitions. Word has length 119 [2019-10-07 14:12:44,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:44,632 INFO L462 AbstractCegarLoop]: Abstraction has 5718 states and 9244 transitions. [2019-10-07 14:12:44,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:12:44,632 INFO L276 IsEmpty]: Start isEmpty. Operand 5718 states and 9244 transitions. [2019-10-07 14:12:44,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:12:44,636 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:44,636 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 14:12:44,636 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:44,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:44,636 INFO L82 PathProgramCache]: Analyzing trace with hash -492943695, now seen corresponding path program 1 times [2019-10-07 14:12:44,637 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:44,637 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:44,637 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:44,637 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:44,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:44,783 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 14:12:44,783 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:44,784 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:44,784 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:44,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:44,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:44,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:44,785 INFO L87 Difference]: Start difference. First operand 5718 states and 9244 transitions. Second operand 4 states. [2019-10-07 14:12:46,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:46,837 INFO L93 Difference]: Finished difference Result 17249 states and 29193 transitions. [2019-10-07 14:12:46,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:46,837 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-10-07 14:12:46,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:46,935 INFO L225 Difference]: With dead ends: 17249 [2019-10-07 14:12:46,935 INFO L226 Difference]: Without dead ends: 11580 [2019-10-07 14:12:46,968 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 14:12:46,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11580 states. [2019-10-07 14:12:48,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11580 to 11325. [2019-10-07 14:12:48,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11325 states. [2019-10-07 14:12:48,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11325 states to 11325 states and 18866 transitions. [2019-10-07 14:12:48,472 INFO L78 Accepts]: Start accepts. Automaton has 11325 states and 18866 transitions. Word has length 120 [2019-10-07 14:12:48,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:48,473 INFO L462 AbstractCegarLoop]: Abstraction has 11325 states and 18866 transitions. [2019-10-07 14:12:48,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:12:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand 11325 states and 18866 transitions. [2019-10-07 14:12:48,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:12:48,476 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:48,476 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 14:12:48,477 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:48,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:48,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1897328490, now seen corresponding path program 1 times [2019-10-07 14:12:48,477 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:48,477 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:48,478 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:48,478 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:48,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:48,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:48,677 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 14:12:48,678 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:48,678 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:48,678 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:48,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:48,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:48,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:48,680 INFO L87 Difference]: Start difference. First operand 11325 states and 18866 transitions. Second operand 4 states. [2019-10-07 14:12:51,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:51,048 INFO L93 Difference]: Finished difference Result 34300 states and 61585 transitions. [2019-10-07 14:12:51,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:51,049 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-07 14:12:51,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:51,245 INFO L225 Difference]: With dead ends: 34300 [2019-10-07 14:12:51,245 INFO L226 Difference]: Without dead ends: 23020 [2019-10-07 14:12:51,309 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 14:12:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23020 states. [2019-10-07 14:12:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23020 to 22438. [2019-10-07 14:12:52,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22438 states. [2019-10-07 14:12:52,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22438 states to 22438 states and 39013 transitions. [2019-10-07 14:12:52,932 INFO L78 Accepts]: Start accepts. Automaton has 22438 states and 39013 transitions. Word has length 121 [2019-10-07 14:12:52,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:52,932 INFO L462 AbstractCegarLoop]: Abstraction has 22438 states and 39013 transitions. [2019-10-07 14:12:52,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:12:52,933 INFO L276 IsEmpty]: Start isEmpty. Operand 22438 states and 39013 transitions. [2019-10-07 14:12:52,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:12:52,940 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:52,941 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] [2019-10-07 14:12:52,941 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:52,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:52,941 INFO L82 PathProgramCache]: Analyzing trace with hash 778299142, now seen corresponding path program 1 times [2019-10-07 14:12:52,942 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:52,942 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:52,942 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:52,942 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:52,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:53,126 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 14:12:53,126 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:53,127 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:53,127 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:12:53,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:12:53,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:12:53,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:12:53,129 INFO L87 Difference]: Start difference. First operand 22438 states and 39013 transitions. Second operand 5 states. [2019-10-07 14:12:54,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:54,626 INFO L93 Difference]: Finished difference Result 45255 states and 81717 transitions. [2019-10-07 14:12:54,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:54,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2019-10-07 14:12:54,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:54,749 INFO L225 Difference]: With dead ends: 45255 [2019-10-07 14:12:54,749 INFO L226 Difference]: Without dead ends: 22860 [2019-10-07 14:12:54,809 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 14:12:54,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22860 states. [2019-10-07 14:12:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22860 to 22710. [2019-10-07 14:12:55,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22710 states. [2019-10-07 14:12:55,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22710 states to 22710 states and 39528 transitions. [2019-10-07 14:12:55,988 INFO L78 Accepts]: Start accepts. Automaton has 22710 states and 39528 transitions. Word has length 174 [2019-10-07 14:12:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:55,989 INFO L462 AbstractCegarLoop]: Abstraction has 22710 states and 39528 transitions. [2019-10-07 14:12:55,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:12:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 22710 states and 39528 transitions. [2019-10-07 14:12:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 14:12:55,996 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:55,996 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] [2019-10-07 14:12:55,996 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:55,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1959532391, now seen corresponding path program 1 times [2019-10-07 14:12:55,997 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:55,997 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:55,997 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:55,998 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:56,240 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 14:12:56,240 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:56,240 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:12:56,241 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 14:12:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:56,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 3337 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:12:56,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:12:56,952 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 14:12:56,952 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:12:57,437 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 14:12:57,438 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:12:57,438 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:12:57,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:57,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:57,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:12:57,440 INFO L87 Difference]: Start difference. First operand 22710 states and 39528 transitions. Second operand 4 states. [2019-10-07 14:12:58,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:58,911 INFO L93 Difference]: Finished difference Result 47873 states and 86744 transitions. [2019-10-07 14:12:58,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:58,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 179 [2019-10-07 14:12:58,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:59,123 INFO L225 Difference]: With dead ends: 47873 [2019-10-07 14:12:59,123 INFO L226 Difference]: Without dead ends: 25206 [2019-10-07 14:12:59,214 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 357 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:12:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25206 states. [2019-10-07 14:13:01,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25206 to 25206. [2019-10-07 14:13:01,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25206 states. [2019-10-07 14:13:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25206 states to 25206 states and 44200 transitions. [2019-10-07 14:13:01,453 INFO L78 Accepts]: Start accepts. Automaton has 25206 states and 44200 transitions. Word has length 179 [2019-10-07 14:13:01,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:01,454 INFO L462 AbstractCegarLoop]: Abstraction has 25206 states and 44200 transitions. [2019-10-07 14:13:01,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:13:01,454 INFO L276 IsEmpty]: Start isEmpty. Operand 25206 states and 44200 transitions. [2019-10-07 14:13:01,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-07 14:13:01,466 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:01,467 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] [2019-10-07 14:13:01,676 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:01,676 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:01,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:01,677 INFO L82 PathProgramCache]: Analyzing trace with hash 579374784, now seen corresponding path program 1 times [2019-10-07 14:13:01,677 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:01,678 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:01,678 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:01,678 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:01,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:01,924 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 14:13:01,924 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:01,924 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:01,924 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 14:13:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:02,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 3342 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:13:02,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:02,621 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 14:13:02,621 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:03,046 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 14:13:03,047 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:13:03,047 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:13:03,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:13:03,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:13:03,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:13:03,051 INFO L87 Difference]: Start difference. First operand 25206 states and 44200 transitions. Second operand 4 states. [2019-10-07 14:13:05,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:05,466 INFO L93 Difference]: Finished difference Result 52865 states and 96022 transitions. [2019-10-07 14:13:05,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:13:05,467 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 184 [2019-10-07 14:13:05,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:05,681 INFO L225 Difference]: With dead ends: 52865 [2019-10-07 14:13:05,681 INFO L226 Difference]: Without dead ends: 27702 [2019-10-07 14:13:05,760 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 365 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 14:13:05,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27702 states. [2019-10-07 14:13:06,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27702 to 27702. [2019-10-07 14:13:06,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27702 states. [2019-10-07 14:13:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27702 states to 27702 states and 48872 transitions. [2019-10-07 14:13:07,055 INFO L78 Accepts]: Start accepts. Automaton has 27702 states and 48872 transitions. Word has length 184 [2019-10-07 14:13:07,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:07,057 INFO L462 AbstractCegarLoop]: Abstraction has 27702 states and 48872 transitions. [2019-10-07 14:13:07,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:13:07,057 INFO L276 IsEmpty]: Start isEmpty. Operand 27702 states and 48872 transitions. [2019-10-07 14:13:07,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-07 14:13:07,065 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:07,066 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] [2019-10-07 14:13:07,283 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:07,283 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:07,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:07,284 INFO L82 PathProgramCache]: Analyzing trace with hash -87061552, now seen corresponding path program 1 times [2019-10-07 14:13:07,284 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:07,284 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:07,284 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:07,285 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:07,545 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 14:13:07,546 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:07,546 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:07,546 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 14:13:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:08,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 3346 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:13:08,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:08,573 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 14:13:08,573 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:08,947 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 14:13:08,948 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:13:08,948 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:13:08,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:13:08,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:13:08,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:13:08,951 INFO L87 Difference]: Start difference. First operand 27702 states and 48872 transitions. Second operand 4 states. [2019-10-07 14:13:09,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:09,995 INFO L93 Difference]: Finished difference Result 57857 states and 105300 transitions. [2019-10-07 14:13:09,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:13:09,995 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 188 [2019-10-07 14:13:09,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:10,160 INFO L225 Difference]: With dead ends: 57857 [2019-10-07 14:13:10,160 INFO L226 Difference]: Without dead ends: 30198 [2019-10-07 14:13:10,245 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 373 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 14:13:10,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30198 states. [2019-10-07 14:13:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30198 to 30198. [2019-10-07 14:13:12,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30198 states. [2019-10-07 14:13:13,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30198 states to 30198 states and 53544 transitions. [2019-10-07 14:13:13,051 INFO L78 Accepts]: Start accepts. Automaton has 30198 states and 53544 transitions. Word has length 188 [2019-10-07 14:13:13,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:13,052 INFO L462 AbstractCegarLoop]: Abstraction has 30198 states and 53544 transitions. [2019-10-07 14:13:13,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:13:13,052 INFO L276 IsEmpty]: Start isEmpty. Operand 30198 states and 53544 transitions. [2019-10-07 14:13:13,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 14:13:13,059 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:13,059 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] [2019-10-07 14:13:13,268 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:13,268 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:13,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:13,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1709626041, now seen corresponding path program 1 times [2019-10-07 14:13:13,269 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:13,269 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:13,269 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:13,269 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:13,449 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 14:13:13,449 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:13,450 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:13,450 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 14:13:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:14,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 3349 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:13:14,255 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:14,315 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 14:13:14,315 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:14,729 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 14:13:14,730 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:13:14,730 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:13:14,734 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:13:14,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:13:14,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:13:14,734 INFO L87 Difference]: Start difference. First operand 30198 states and 53544 transitions. Second operand 4 states. [2019-10-07 14:13:15,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:15,574 INFO L93 Difference]: Finished difference Result 62849 states and 114578 transitions. [2019-10-07 14:13:15,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:13:15,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2019-10-07 14:13:15,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:15,745 INFO L225 Difference]: With dead ends: 62849 [2019-10-07 14:13:15,745 INFO L226 Difference]: Without dead ends: 32694 [2019-10-07 14:13:15,822 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 14:13:15,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32694 states. [2019-10-07 14:13:17,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32694 to 32694. [2019-10-07 14:13:17,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32694 states. [2019-10-07 14:13:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32694 states to 32694 states and 58216 transitions. [2019-10-07 14:13:17,275 INFO L78 Accepts]: Start accepts. Automaton has 32694 states and 58216 transitions. Word has length 191 [2019-10-07 14:13:17,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:17,276 INFO L462 AbstractCegarLoop]: Abstraction has 32694 states and 58216 transitions. [2019-10-07 14:13:17,276 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:13:17,276 INFO L276 IsEmpty]: Start isEmpty. Operand 32694 states and 58216 transitions. [2019-10-07 14:13:17,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-07 14:13:17,283 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:17,283 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] [2019-10-07 14:13:17,490 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:17,491 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:17,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:17,492 INFO L82 PathProgramCache]: Analyzing trace with hash 912741945, now seen corresponding path program 1 times [2019-10-07 14:13:17,492 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:17,493 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:17,493 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:17,493 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:17,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:17,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:17,723 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 14:13:17,723 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:17,723 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:17,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:18,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:18,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 3345 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:13:18,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:18,450 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 14:13:18,451 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:18,924 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 14:13:18,924 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:13:18,925 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [9] total 16 [2019-10-07 14:13:18,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:13:18,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:13:18,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:13:18,926 INFO L87 Difference]: Start difference. First operand 32694 states and 58216 transitions. Second operand 9 states. [2019-10-07 14:13:21,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:21,036 INFO L93 Difference]: Finished difference Result 34100 states and 65175 transitions. [2019-10-07 14:13:21,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:13:21,036 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 193 [2019-10-07 14:13:21,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:21,212 INFO L225 Difference]: With dead ends: 34100 [2019-10-07 14:13:21,213 INFO L226 Difference]: Without dead ends: 33881 [2019-10-07 14:13:21,235 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 383 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:13:21,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33881 states. [2019-10-07 14:13:22,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33881 to 33177. [2019-10-07 14:13:22,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33177 states. [2019-10-07 14:13:22,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33177 states to 33177 states and 60534 transitions. [2019-10-07 14:13:22,509 INFO L78 Accepts]: Start accepts. Automaton has 33177 states and 60534 transitions. Word has length 193 [2019-10-07 14:13:22,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:22,510 INFO L462 AbstractCegarLoop]: Abstraction has 33177 states and 60534 transitions. [2019-10-07 14:13:22,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:13:22,510 INFO L276 IsEmpty]: Start isEmpty. Operand 33177 states and 60534 transitions. [2019-10-07 14:13:22,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-07 14:13:22,519 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:22,519 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] [2019-10-07 14:13:22,727 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:22,727 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:22,728 INFO L82 PathProgramCache]: Analyzing trace with hash 294357998, now seen corresponding path program 1 times [2019-10-07 14:13:22,728 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:22,728 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:22,728 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:22,728 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:22,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:22,990 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 14:13:22,990 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:22,991 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:22,991 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 14:13:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:23,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 3360 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:13:23,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:23,728 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 14:13:23,729 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:25,147 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:13:25,627 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 14:13:25,628 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:13:25,628 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [9] total 12 [2019-10-07 14:13:25,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:13:25,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:13:25,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:13:25,631 INFO L87 Difference]: Start difference. First operand 33177 states and 60534 transitions. Second operand 5 states. [2019-10-07 14:13:26,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:26,395 INFO L93 Difference]: Finished difference Result 33396 states and 60778 transitions. [2019-10-07 14:13:26,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:13:26,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2019-10-07 14:13:26,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:26,495 INFO L225 Difference]: With dead ends: 33396 [2019-10-07 14:13:26,495 INFO L226 Difference]: Without dead ends: 33177 [2019-10-07 14:13:26,511 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 397 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 14:13:26,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33177 states. [2019-10-07 14:13:27,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33177 to 33177. [2019-10-07 14:13:27,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33177 states. [2019-10-07 14:13:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33177 states to 33177 states and 60441 transitions. [2019-10-07 14:13:27,419 INFO L78 Accepts]: Start accepts. Automaton has 33177 states and 60441 transitions. Word has length 198 [2019-10-07 14:13:27,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:27,420 INFO L462 AbstractCegarLoop]: Abstraction has 33177 states and 60441 transitions. [2019-10-07 14:13:27,420 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:13:27,420 INFO L276 IsEmpty]: Start isEmpty. Operand 33177 states and 60441 transitions. [2019-10-07 14:13:27,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-07 14:13:27,427 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:27,427 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] [2019-10-07 14:13:27,628 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:27,629 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:27,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:27,629 INFO L82 PathProgramCache]: Analyzing trace with hash -938536650, now seen corresponding path program 1 times [2019-10-07 14:13:27,630 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:27,630 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:27,631 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:27,631 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:27,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:27,892 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 14:13:27,893 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:27,894 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:27,894 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 14:13:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:28,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 3403 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:13:28,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:28,888 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 14:13:28,889 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:29,522 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:29,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:29,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:29,543 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:29,549 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:29,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:29,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:29,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:29,683 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 14:13:29,683 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:13:29,737 INFO L162 IcfgInterpreter]: Started Sifa with 177 locations of interest [2019-10-07 14:13:29,738 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:13:29,745 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:13:29,753 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:13:29,754 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:14:11,653 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 760 [2019-10-07 14:14:16,327 WARN L191 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:14:16,732 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:14:17,055 WARN L191 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:14:17,362 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:14:17,579 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 284 [2019-10-07 14:14:18,050 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:14:18,564 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:14:19,024 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:14:19,547 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:14:20,565 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 1034 DAG size of output: 1032 [2019-10-07 14:14:21,024 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:14:21,554 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:14:22,012 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:14:22,474 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:14:23,032 WARN L191 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:14:23,051 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 385 for LOIs [2019-10-07 14:14:23,311 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 729 [2019-10-07 14:14:23,425 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 729 [2019-10-07 14:14:23,792 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 915 [2019-10-07 14:14:23,794 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1082 for LOIs [2019-10-07 14:14:24,240 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:24,683 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:24,807 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:25,574 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:26,057 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:26,503 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:26,632 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:27,385 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:27,883 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:28,342 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:28,467 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:29,245 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:30,158 WARN L191 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1082 [2019-10-07 14:14:30,619 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:30,884 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:31,822 WARN L191 SmtUtils]: Spent 935.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:32,298 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:32,744 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:32,873 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:33,637 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:34,082 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:34,536 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:34,655 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:35,442 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:35,889 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:36,346 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:36,468 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:37,218 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:37,672 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:38,127 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:38,265 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:39,032 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:39,479 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:39,932 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:40,053 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:40,804 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:41,269 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:41,724 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:41,848 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:42,607 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:43,072 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:43,525 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:43,643 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:44,421 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:44,872 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:45,343 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:45,462 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:46,243 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:46,699 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:47,165 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1082 [2019-10-07 14:14:47,285 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:48,091 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:48,903 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:49,688 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:49,823 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:50,591 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:52,027 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:14:52,799 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:52,927 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:53,718 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:54,497 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:55,282 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:55,401 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:14:56,189 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:14:56,995 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:14:57,791 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:14:57,922 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:14:58,707 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:14:59,534 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:00,311 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:00,464 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:01,244 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:02,032 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:02,829 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:02,958 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:03,752 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:04,565 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:15:05,337 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:15:05,462 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:06,263 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:07,049 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:07,849 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:07,988 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:08,773 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:15:09,587 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:10,371 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:10,502 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:11,277 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:15:12,636 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:15:13,439 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:13,580 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:14,378 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:15:15,165 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:15,946 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:16,070 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:16,875 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:15:18,340 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:15:19,119 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:19,270 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:15:20,056 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:21,466 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:15:22,257 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:22,385 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:15:23,176 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:23,937 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:24,751 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:24,872 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:15:25,643 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:27,778 WARN L191 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:15:28,576 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:15:28,705 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:29,520 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:30,615 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:31,395 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:31,530 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:32,315 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:33,745 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:15:34,553 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:15:34,676 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:35,471 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:36,814 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:15:37,587 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:15:37,717 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:38,524 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:39,843 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:15:40,613 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:15:40,743 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:15:41,506 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:15:42,916 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:15:43,683 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:43,813 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:15:44,596 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:45,961 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:15:46,733 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:46,863 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:15:47,629 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:48,421 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:49,192 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:49,316 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:15:50,113 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:51,523 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:15:52,300 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:52,427 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:15:53,190 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:54,578 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:15:55,378 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:55,506 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:15:56,295 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:57,719 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:15:58,478 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:58,609 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:15:59,374 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:00,753 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:16:01,537 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:01,669 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:02,451 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:03,222 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:04,011 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:04,131 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:04,918 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:05,728 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:06,533 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:06,664 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:07,457 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:08,848 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:16:09,619 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:09,749 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:10,527 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:11,919 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:16:12,700 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:12,824 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:13,606 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:14,947 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:16:15,735 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:15,869 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:16,669 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:18,068 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:16:18,857 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:16:18,986 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:19,772 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:16:21,232 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:16:22,005 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:22,133 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:22,921 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:24,344 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:16:25,128 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:25,257 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:26,046 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:26,815 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:27,596 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:27,721 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:28,496 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:29,947 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:16:30,736 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:30,878 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:31,649 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:33,040 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:16:33,832 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:33,959 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:34,769 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:36,212 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:16:36,985 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:37,116 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:37,901 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:39,358 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:16:40,138 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:40,263 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:41,035 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:41,818 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:42,612 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:42,759 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:43,532 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:44,973 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:16:45,748 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:45,879 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:46,668 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:48,090 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:16:48,882 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:49,009 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:49,811 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:50,605 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:51,380 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:51,511 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:52,281 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:53,600 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:16:54,372 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:54,503 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:16:55,290 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:16:56,730 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:16:57,509 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:57,639 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:16:58,434 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:59,887 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:17:00,697 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:00,831 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:01,630 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:02,394 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:03,191 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:03,311 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:04,101 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:04,942 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:05,742 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:05,872 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:06,653 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:08,063 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:17:08,831 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:08,965 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:09,739 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:11,152 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:17:11,937 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:12,063 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:12,845 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:14,166 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:17:15,081 WARN L191 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:17:15,227 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:16,007 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:17,335 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:17:18,135 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:18,266 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:19,048 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:17:20,379 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:17:21,183 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:21,311 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:22,119 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:17:23,459 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:17:24,238 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:17:24,377 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:17:25,188 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:17:25,194 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1104 for LOIs [2019-10-07 14:17:25,684 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:17:26,185 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1104 [2019-10-07 14:17:26,316 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:27,091 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:27,638 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:17:28,161 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:17:28,283 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:29,063 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:29,966 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1114 [2019-10-07 14:17:30,470 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:17:30,596 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:31,387 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:31,916 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:17:32,444 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:17:32,564 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:33,351 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:33,870 WARN L191 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:17:34,403 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:17:34,524 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:35,312 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:35,829 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:17:36,359 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:17:36,481 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:17:37,284 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:37,563 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:17:37,564 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 14:17:37,571 INFO L168 Benchmark]: Toolchain (without parser) took 310405.97 ms. Allocated memory was 136.3 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 98.7 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 398.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:37,571 INFO L168 Benchmark]: CDTParser took 1.29 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:17:37,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1000.66 ms. Allocated memory was 136.3 MB in the beginning and 201.9 MB in the end (delta: 65.5 MB). Free memory was 98.5 MB in the beginning and 144.2 MB in the end (delta: -45.7 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:37,572 INFO L168 Benchmark]: Boogie Preprocessor took 181.68 ms. Allocated memory is still 201.9 MB. Free memory was 144.2 MB in the beginning and 134.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:37,572 INFO L168 Benchmark]: RCFGBuilder took 4657.59 ms. Allocated memory was 201.9 MB in the beginning and 316.1 MB in the end (delta: 114.3 MB). Free memory was 134.5 MB in the beginning and 86.1 MB in the end (delta: 48.3 MB). Peak memory consumption was 162.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:37,572 INFO L168 Benchmark]: TraceAbstraction took 304556.92 ms. Allocated memory was 316.1 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 86.1 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 206.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:37,574 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1000.66 ms. Allocated memory was 136.3 MB in the beginning and 201.9 MB in the end (delta: 65.5 MB). Free memory was 98.5 MB in the beginning and 144.2 MB in the end (delta: -45.7 MB). Peak memory consumption was 37.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 181.68 ms. Allocated memory is still 201.9 MB. Free memory was 144.2 MB in the beginning and 134.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4657.59 ms. Allocated memory was 201.9 MB in the beginning and 316.1 MB in the end (delta: 114.3 MB). Free memory was 134.5 MB in the beginning and 86.1 MB in the end (delta: 48.3 MB). Peak memory consumption was 162.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 304556.92 ms. Allocated memory was 316.1 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 86.1 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 206.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...