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_spec1_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:10:04,056 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:10:04,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:10:04,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:10:04,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:10:04,080 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:10:04,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:10:04,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:10:04,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:10:04,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:10:04,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:10:04,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:10:04,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:10:04,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:10:04,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:10:04,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:10:04,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:10:04,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:10:04,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:10:04,102 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:10:04,103 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:10:04,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:10:04,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:10:04,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:10:04,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:10:04,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:10:04,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:10:04,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:10:04,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:10:04,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:10:04,111 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:10:04,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:10:04,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:10:04,113 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:10:04,114 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:10:04,114 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:10:04,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:10:04,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:10:04,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:10:04,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:10:04,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:10:04,117 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 14:10:04,135 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:10:04,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:10:04,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:10:04,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:10:04,137 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:10:04,137 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:10:04,137 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:10:04,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:10:04,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:10:04,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:10:04,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:10:04,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:10:04,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:10:04,138 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:10:04,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:10:04,139 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:10:04,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:10:04,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:10:04,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:10:04,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:10:04,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:10:04,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:10:04,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:10:04,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:10:04,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:10:04,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:10:04,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:10:04,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:10:04,141 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 14:10:04,471 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:10:04,489 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:10:04,495 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:10:04,496 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:10:04,497 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:10:04,497 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c [2019-10-07 14:10:04,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81ee8ba06/6343015212c94ffc8ca32399ddd69fa4/FLAG4f424c77b [2019-10-07 14:10:05,157 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:10:05,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product29.cil.c [2019-10-07 14:10:05,184 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81ee8ba06/6343015212c94ffc8ca32399ddd69fa4/FLAG4f424c77b [2019-10-07 14:10:05,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81ee8ba06/6343015212c94ffc8ca32399ddd69fa4 [2019-10-07 14:10:05,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:10:05,433 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:10:05,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:10:05,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:10:05,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:10:05,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:10:05" (1/1) ... [2019-10-07 14:10:05,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5293757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:05, skipping insertion in model container [2019-10-07 14:10:05,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:10:05" (1/1) ... [2019-10-07 14:10:05,450 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:10:05,549 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:10:06,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:10:06,355 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:10:06,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:10:06,666 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:10:06,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06 WrapperNode [2019-10-07 14:10:06,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:10:06,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:10:06,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:10:06,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:10:06,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06" (1/1) ... [2019-10-07 14:10:06,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06" (1/1) ... [2019-10-07 14:10:06,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06" (1/1) ... [2019-10-07 14:10:06,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06" (1/1) ... [2019-10-07 14:10:06,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06" (1/1) ... [2019-10-07 14:10:06,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06" (1/1) ... [2019-10-07 14:10:06,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06" (1/1) ... [2019-10-07 14:10:06,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:10:06,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:10:06,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:10:06,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:10:06,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06" (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 14:10:06,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:10:06,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:10:06,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:10:06,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:10:06,954 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:10:06,955 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:10:06,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:10:06,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:10:06,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:10:06,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:10:06,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:10:06,957 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:10:06,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:10:06,958 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:10:06,958 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:10:06,958 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:10:06,960 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:10:06,961 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:10:06,961 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:10:06,961 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:10:06,961 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:10:06,962 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:10:06,962 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:10:06,963 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:10:06,963 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:10:06,963 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:10:06,963 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:10:06,963 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:10:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:10:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:10:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:10:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:10:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:10:06,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:10:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:10:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:10:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:10:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:10:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:10:06,965 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:10:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:10:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:10:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:10:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:10:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:10:06,966 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:10:06,967 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:10:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:10:06,968 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:10:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:10:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:10:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:10:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:10:06,969 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:10:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:10:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:10:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:10:06,970 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:10:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:10:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:10:06,971 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:10:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:10:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:10:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:10:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:10:06,972 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:10:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:10:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:10:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:10:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:10:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:10:06,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:10:06,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:10:06,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:10:06,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:10:06,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:10:06,975 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:10:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:10:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:10:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:10:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:10:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:10:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:10:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:10:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:10:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:10:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:10:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:10:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:10:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:10:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:10:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:10:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:10:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:10:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:10:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:10:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:10:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:10:06,980 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:10:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:10:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:10:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:10:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:10:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:10:06,981 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:10:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:10:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:10:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:10:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:10:06,982 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:10:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:10:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:10:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:10:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:10:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:10:06,983 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:10:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:10:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:10:06,984 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:10:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:10:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:10:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:10:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:10:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:10:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:10:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:10:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:10:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:10:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:10:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:10:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:10:06,988 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:10:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:10:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:10:06,992 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:10:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:10:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:10:06,993 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:10:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:10:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:10:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:10:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:10:06,994 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:10:06,995 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:10:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:10:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:10:07,002 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:10:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:10:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:10:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:10:07,003 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:10:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:10:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:10:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:10:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:10:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:10:07,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:10:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:10:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:10:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:10:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:10:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:10:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:10:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:10:07,005 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:10:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:10:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:10:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:10:07,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:10:11,854 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:10:11,854 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:10:11,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:10:11 BoogieIcfgContainer [2019-10-07 14:10:11,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:10:11,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:10:11,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:10:11,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:10:11,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:10:05" (1/3) ... [2019-10-07 14:10:11,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb47ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:10:11, skipping insertion in model container [2019-10-07 14:10:11,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:10:06" (2/3) ... [2019-10-07 14:10:11,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb47ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:10:11, skipping insertion in model container [2019-10-07 14:10:11,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:10:11" (3/3) ... [2019-10-07 14:10:11,863 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product29.cil.c [2019-10-07 14:10:11,870 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:10:11,879 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:10:11,891 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:10:11,935 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:10:11,935 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:10:11,936 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:10:11,936 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:10:11,936 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:10:11,936 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:10:11,936 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:10:11,937 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:10:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states. [2019-10-07 14:10:12,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:10:12,006 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:12,007 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:12,010 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:12,016 INFO L82 PathProgramCache]: Analyzing trace with hash -385791060, now seen corresponding path program 1 times [2019-10-07 14:10:12,026 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:12,026 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:12,026 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:12,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:12,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:12,754 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:10:12,754 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:12,755 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:12,755 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:10:12,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:10:12,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:10:12,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:10:12,777 INFO L87 Difference]: Start difference. First operand 575 states. Second operand 2 states. [2019-10-07 14:10:12,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:12,843 INFO L93 Difference]: Finished difference Result 484 states and 716 transitions. [2019-10-07 14:10:12,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:10:12,844 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 129 [2019-10-07 14:10:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:12,868 INFO L225 Difference]: With dead ends: 484 [2019-10-07 14:10:12,868 INFO L226 Difference]: Without dead ends: 450 [2019-10-07 14:10:12,873 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 14:10:12,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-07 14:10:12,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2019-10-07 14:10:12,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-10-07 14:10:12,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 665 transitions. [2019-10-07 14:10:12,971 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 665 transitions. Word has length 129 [2019-10-07 14:10:12,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:12,975 INFO L462 AbstractCegarLoop]: Abstraction has 450 states and 665 transitions. [2019-10-07 14:10:12,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:10:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 665 transitions. [2019-10-07 14:10:12,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 14:10:12,987 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:12,987 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:12,987 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:12,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:12,988 INFO L82 PathProgramCache]: Analyzing trace with hash -284613315, now seen corresponding path program 1 times [2019-10-07 14:10:12,988 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:12,988 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:12,989 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:12,989 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:12,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:10:13,438 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:13,438 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:13,439 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:10:13,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:10:13,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:10:13,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:10:13,447 INFO L87 Difference]: Start difference. First operand 450 states and 665 transitions. Second operand 9 states. [2019-10-07 14:10:18,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:18,649 INFO L93 Difference]: Finished difference Result 1389 states and 2118 transitions. [2019-10-07 14:10:18,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-07 14:10:18,650 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 130 [2019-10-07 14:10:18,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:18,662 INFO L225 Difference]: With dead ends: 1389 [2019-10-07 14:10:18,663 INFO L226 Difference]: Without dead ends: 992 [2019-10-07 14:10:18,671 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2019-10-07 14:10:18,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2019-10-07 14:10:18,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 960. [2019-10-07 14:10:18,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 960 states. [2019-10-07 14:10:18,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1465 transitions. [2019-10-07 14:10:18,800 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1465 transitions. Word has length 130 [2019-10-07 14:10:18,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:18,801 INFO L462 AbstractCegarLoop]: Abstraction has 960 states and 1465 transitions. [2019-10-07 14:10:18,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:10:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1465 transitions. [2019-10-07 14:10:18,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:10:18,806 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:18,806 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:18,806 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:18,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:18,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1098290023, now seen corresponding path program 1 times [2019-10-07 14:10:18,807 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:18,807 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:18,808 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:18,808 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:19,018 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:10:19,018 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:19,018 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:19,019 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:10:19,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:10:19,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:10:19,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:10:19,020 INFO L87 Difference]: Start difference. First operand 960 states and 1465 transitions. Second operand 7 states. [2019-10-07 14:10:19,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:19,115 INFO L93 Difference]: Finished difference Result 1529 states and 2350 transitions. [2019-10-07 14:10:19,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:10:19,115 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2019-10-07 14:10:19,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:19,125 INFO L225 Difference]: With dead ends: 1529 [2019-10-07 14:10:19,125 INFO L226 Difference]: Without dead ends: 997 [2019-10-07 14:10:19,129 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:10:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2019-10-07 14:10:19,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 981. [2019-10-07 14:10:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2019-10-07 14:10:19,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1495 transitions. [2019-10-07 14:10:19,200 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1495 transitions. Word has length 135 [2019-10-07 14:10:19,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:19,201 INFO L462 AbstractCegarLoop]: Abstraction has 981 states and 1495 transitions. [2019-10-07 14:10:19,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:10:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1495 transitions. [2019-10-07 14:10:19,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:10:19,205 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:19,206 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:19,206 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:19,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:19,206 INFO L82 PathProgramCache]: Analyzing trace with hash 368331449, now seen corresponding path program 1 times [2019-10-07 14:10:19,207 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:19,207 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:19,207 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:19,207 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:19,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:19,461 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:10:19,462 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:19,462 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:19,463 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:10:19,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:10:19,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:10:19,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:10:19,465 INFO L87 Difference]: Start difference. First operand 981 states and 1495 transitions. Second operand 7 states. [2019-10-07 14:10:19,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:19,582 INFO L93 Difference]: Finished difference Result 1558 states and 2388 transitions. [2019-10-07 14:10:19,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:10:19,582 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2019-10-07 14:10:19,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:19,590 INFO L225 Difference]: With dead ends: 1558 [2019-10-07 14:10:19,590 INFO L226 Difference]: Without dead ends: 1012 [2019-10-07 14:10:19,593 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:10:19,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2019-10-07 14:10:19,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 984. [2019-10-07 14:10:19,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2019-10-07 14:10:19,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1498 transitions. [2019-10-07 14:10:19,658 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1498 transitions. Word has length 135 [2019-10-07 14:10:19,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:19,659 INFO L462 AbstractCegarLoop]: Abstraction has 984 states and 1498 transitions. [2019-10-07 14:10:19,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:10:19,660 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1498 transitions. [2019-10-07 14:10:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-07 14:10:19,664 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:19,664 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:19,665 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:19,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:19,665 INFO L82 PathProgramCache]: Analyzing trace with hash 139822543, now seen corresponding path program 1 times [2019-10-07 14:10:19,665 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:19,666 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:19,666 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:19,666 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:19,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:10:19,924 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:19,925 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:19,925 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:10:19,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:10:19,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:10:19,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:10:19,927 INFO L87 Difference]: Start difference. First operand 984 states and 1498 transitions. Second operand 7 states. [2019-10-07 14:10:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:20,020 INFO L93 Difference]: Finished difference Result 1563 states and 2393 transitions. [2019-10-07 14:10:20,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:10:20,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2019-10-07 14:10:20,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:20,030 INFO L225 Difference]: With dead ends: 1563 [2019-10-07 14:10:20,031 INFO L226 Difference]: Without dead ends: 1015 [2019-10-07 14:10:20,035 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:10:20,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2019-10-07 14:10:20,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 987. [2019-10-07 14:10:20,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 987 states. [2019-10-07 14:10:20,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 987 states to 987 states and 1501 transitions. [2019-10-07 14:10:20,090 INFO L78 Accepts]: Start accepts. Automaton has 987 states and 1501 transitions. Word has length 134 [2019-10-07 14:10:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:20,091 INFO L462 AbstractCegarLoop]: Abstraction has 987 states and 1501 transitions. [2019-10-07 14:10:20,091 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:10:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 987 states and 1501 transitions. [2019-10-07 14:10:20,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-10-07 14:10:20,095 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:20,096 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:20,096 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:20,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:20,098 INFO L82 PathProgramCache]: Analyzing trace with hash -260155337, now seen corresponding path program 1 times [2019-10-07 14:10:20,098 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:20,098 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:20,098 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:20,099 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:20,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:20,491 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:10:20,492 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:20,492 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:20,493 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:10:20,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:10:20,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:10:20,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:10:20,494 INFO L87 Difference]: Start difference. First operand 987 states and 1501 transitions. Second operand 8 states. [2019-10-07 14:10:24,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:24,056 INFO L93 Difference]: Finished difference Result 2103 states and 3222 transitions. [2019-10-07 14:10:24,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:10:24,059 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 138 [2019-10-07 14:10:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:24,072 INFO L225 Difference]: With dead ends: 2103 [2019-10-07 14:10:24,073 INFO L226 Difference]: Without dead ends: 1428 [2019-10-07 14:10:24,078 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:10:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2019-10-07 14:10:24,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1378. [2019-10-07 14:10:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1378 states. [2019-10-07 14:10:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1378 states to 1378 states and 2058 transitions. [2019-10-07 14:10:24,168 INFO L78 Accepts]: Start accepts. Automaton has 1378 states and 2058 transitions. Word has length 138 [2019-10-07 14:10:24,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:24,168 INFO L462 AbstractCegarLoop]: Abstraction has 1378 states and 2058 transitions. [2019-10-07 14:10:24,168 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:10:24,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1378 states and 2058 transitions. [2019-10-07 14:10:24,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:10:24,172 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:24,173 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:24,173 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:24,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:24,212 INFO L82 PathProgramCache]: Analyzing trace with hash -236331617, now seen corresponding path program 1 times [2019-10-07 14:10:24,212 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:24,212 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:24,213 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:24,213 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:24,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:24,436 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:10:24,437 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:24,437 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:24,437 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:10:24,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:10:24,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:10:24,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:10:24,439 INFO L87 Difference]: Start difference. First operand 1378 states and 2058 transitions. Second operand 9 states. [2019-10-07 14:10:24,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:24,719 INFO L93 Difference]: Finished difference Result 2672 states and 4095 transitions. [2019-10-07 14:10:24,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:10:24,720 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 141 [2019-10-07 14:10:24,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:24,736 INFO L225 Difference]: With dead ends: 2672 [2019-10-07 14:10:24,736 INFO L226 Difference]: Without dead ends: 1582 [2019-10-07 14:10:24,745 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:10:24,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1582 states. [2019-10-07 14:10:24,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1582 to 1582. [2019-10-07 14:10:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1582 states. [2019-10-07 14:10:24,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2362 transitions. [2019-10-07 14:10:24,855 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2362 transitions. Word has length 141 [2019-10-07 14:10:24,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:24,856 INFO L462 AbstractCegarLoop]: Abstraction has 1582 states and 2362 transitions. [2019-10-07 14:10:24,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:10:24,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2362 transitions. [2019-10-07 14:10:24,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-10-07 14:10:24,861 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:24,862 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:24,862 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:24,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:24,863 INFO L82 PathProgramCache]: Analyzing trace with hash 359939417, now seen corresponding path program 1 times [2019-10-07 14:10:24,863 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:24,863 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:24,864 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:24,864 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:24,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:10:25,084 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:25,085 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:25,085 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:10:25,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:10:25,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:10:25,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:10:25,086 INFO L87 Difference]: Start difference. First operand 1582 states and 2362 transitions. Second operand 6 states. [2019-10-07 14:10:29,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:29,215 INFO L93 Difference]: Finished difference Result 6443 states and 10010 transitions. [2019-10-07 14:10:29,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:10:29,216 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2019-10-07 14:10:29,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:29,260 INFO L225 Difference]: With dead ends: 6443 [2019-10-07 14:10:29,260 INFO L226 Difference]: Without dead ends: 4915 [2019-10-07 14:10:29,276 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:10:29,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2019-10-07 14:10:29,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 4552. [2019-10-07 14:10:29,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4552 states. [2019-10-07 14:10:29,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4552 states to 4552 states and 6953 transitions. [2019-10-07 14:10:29,602 INFO L78 Accepts]: Start accepts. Automaton has 4552 states and 6953 transitions. Word has length 142 [2019-10-07 14:10:29,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:29,603 INFO L462 AbstractCegarLoop]: Abstraction has 4552 states and 6953 transitions. [2019-10-07 14:10:29,603 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:10:29,603 INFO L276 IsEmpty]: Start isEmpty. Operand 4552 states and 6953 transitions. [2019-10-07 14:10:29,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-07 14:10:29,608 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:29,608 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:29,608 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:29,609 INFO L82 PathProgramCache]: Analyzing trace with hash 809382242, now seen corresponding path program 1 times [2019-10-07 14:10:29,609 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:29,610 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:29,610 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:29,610 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:29,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:29,906 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:10:29,906 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:29,907 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:29,907 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:10:29,909 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:10:29,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:10:29,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:10:29,909 INFO L87 Difference]: Start difference. First operand 4552 states and 6953 transitions. Second operand 7 states. [2019-10-07 14:10:34,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:34,026 INFO L93 Difference]: Finished difference Result 8156 states and 12526 transitions. [2019-10-07 14:10:34,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:10:34,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2019-10-07 14:10:34,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:34,078 INFO L225 Difference]: With dead ends: 8156 [2019-10-07 14:10:34,078 INFO L226 Difference]: Without dead ends: 4722 [2019-10-07 14:10:34,109 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 14:10:34,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4722 states. [2019-10-07 14:10:34,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4722 to 4636. [2019-10-07 14:10:34,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4636 states. [2019-10-07 14:10:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4636 states to 4636 states and 7059 transitions. [2019-10-07 14:10:34,456 INFO L78 Accepts]: Start accepts. Automaton has 4636 states and 7059 transitions. Word has length 144 [2019-10-07 14:10:34,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:34,457 INFO L462 AbstractCegarLoop]: Abstraction has 4636 states and 7059 transitions. [2019-10-07 14:10:34,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:10:34,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4636 states and 7059 transitions. [2019-10-07 14:10:34,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-07 14:10:34,466 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:34,466 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:34,467 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:34,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:34,467 INFO L82 PathProgramCache]: Analyzing trace with hash -641855812, now seen corresponding path program 1 times [2019-10-07 14:10:34,468 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:34,468 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:34,468 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:34,469 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:34,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:34,989 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:10:34,990 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:34,990 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:34,991 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:10:34,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:10:34,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:10:34,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:10:34,994 INFO L87 Difference]: Start difference. First operand 4636 states and 7059 transitions. Second operand 9 states. [2019-10-07 14:10:41,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:41,326 INFO L93 Difference]: Finished difference Result 16066 states and 24778 transitions. [2019-10-07 14:10:41,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 14:10:41,327 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2019-10-07 14:10:41,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:41,400 INFO L225 Difference]: With dead ends: 16066 [2019-10-07 14:10:41,400 INFO L226 Difference]: Without dead ends: 11483 [2019-10-07 14:10:41,432 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2019-10-07 14:10:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11483 states. [2019-10-07 14:10:42,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11483 to 11143. [2019-10-07 14:10:42,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11143 states. [2019-10-07 14:10:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11143 states to 11143 states and 17196 transitions. [2019-10-07 14:10:42,078 INFO L78 Accepts]: Start accepts. Automaton has 11143 states and 17196 transitions. Word has length 148 [2019-10-07 14:10:42,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:42,081 INFO L462 AbstractCegarLoop]: Abstraction has 11143 states and 17196 transitions. [2019-10-07 14:10:42,082 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:10:42,082 INFO L276 IsEmpty]: Start isEmpty. Operand 11143 states and 17196 transitions. [2019-10-07 14:10:42,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 14:10:42,087 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:42,087 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:42,088 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:42,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:42,088 INFO L82 PathProgramCache]: Analyzing trace with hash -885261648, now seen corresponding path program 1 times [2019-10-07 14:10:42,088 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:42,088 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:42,089 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:42,089 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:42,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:42,338 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:10:42,338 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:42,339 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:42,339 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:10:42,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:10:42,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:10:42,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:10:42,341 INFO L87 Difference]: Start difference. First operand 11143 states and 17196 transitions. Second operand 10 states. [2019-10-07 14:10:43,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:43,490 INFO L93 Difference]: Finished difference Result 21783 states and 33909 transitions. [2019-10-07 14:10:43,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:10:43,491 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-10-07 14:10:43,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:43,566 INFO L225 Difference]: With dead ends: 21783 [2019-10-07 14:10:43,566 INFO L226 Difference]: Without dead ends: 12511 [2019-10-07 14:10:43,609 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:10:43,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12511 states. [2019-10-07 14:10:44,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12511 to 11878. [2019-10-07 14:10:44,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11878 states. [2019-10-07 14:10:44,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11878 states to 11878 states and 18405 transitions. [2019-10-07 14:10:44,282 INFO L78 Accepts]: Start accepts. Automaton has 11878 states and 18405 transitions. Word has length 150 [2019-10-07 14:10:44,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:44,282 INFO L462 AbstractCegarLoop]: Abstraction has 11878 states and 18405 transitions. [2019-10-07 14:10:44,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:10:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 11878 states and 18405 transitions. [2019-10-07 14:10:44,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-07 14:10:44,287 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:44,288 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:44,288 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:44,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:44,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1949662417, now seen corresponding path program 1 times [2019-10-07 14:10:44,289 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:44,289 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:44,289 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:44,289 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:44,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:45,031 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-07 14:10:45,031 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:45,031 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:10:45,031 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 14:10:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:45,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 3275 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:10:46,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:10:46,368 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:10:46,369 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:10:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:10:46,847 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:10:46,847 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [26] total 33 [2019-10-07 14:10:46,848 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:10:46,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:10:46,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2019-10-07 14:10:46,849 INFO L87 Difference]: Start difference. First operand 11878 states and 18405 transitions. Second operand 9 states. [2019-10-07 14:10:48,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:48,667 INFO L93 Difference]: Finished difference Result 12095 states and 18852 transitions. [2019-10-07 14:10:48,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:10:48,668 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 154 [2019-10-07 14:10:48,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:48,738 INFO L225 Difference]: With dead ends: 12095 [2019-10-07 14:10:48,739 INFO L226 Difference]: Without dead ends: 12078 [2019-10-07 14:10:48,753 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 319 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=137, Invalid=1053, Unknown=0, NotChecked=0, Total=1190 [2019-10-07 14:10:48,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12078 states. [2019-10-07 14:10:49,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12078 to 11956. [2019-10-07 14:10:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11956 states. [2019-10-07 14:10:49,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11956 states to 11956 states and 18533 transitions. [2019-10-07 14:10:49,751 INFO L78 Accepts]: Start accepts. Automaton has 11956 states and 18533 transitions. Word has length 154 [2019-10-07 14:10:49,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:49,752 INFO L462 AbstractCegarLoop]: Abstraction has 11956 states and 18533 transitions. [2019-10-07 14:10:49,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:10:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 11956 states and 18533 transitions. [2019-10-07 14:10:49,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-07 14:10:49,757 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:49,757 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:49,970 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:10:49,970 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:49,971 INFO L82 PathProgramCache]: Analyzing trace with hash -855325016, now seen corresponding path program 1 times [2019-10-07 14:10:49,971 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:49,972 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:49,972 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:49,972 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:50,193 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:10:50,193 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:50,193 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:10:50,193 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:10:50,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:10:50,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:10:50,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:10:50,195 INFO L87 Difference]: Start difference. First operand 11956 states and 18533 transitions. Second operand 8 states. [2019-10-07 14:10:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:50,782 INFO L93 Difference]: Finished difference Result 11973 states and 18553 transitions. [2019-10-07 14:10:50,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:10:50,783 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 158 [2019-10-07 14:10:50,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:50,859 INFO L225 Difference]: With dead ends: 11973 [2019-10-07 14:10:50,859 INFO L226 Difference]: Without dead ends: 11956 [2019-10-07 14:10:50,872 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:10:50,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11956 states. [2019-10-07 14:10:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11956 to 11956. [2019-10-07 14:10:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11956 states. [2019-10-07 14:10:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11956 states to 11956 states and 18510 transitions. [2019-10-07 14:10:51,555 INFO L78 Accepts]: Start accepts. Automaton has 11956 states and 18510 transitions. Word has length 158 [2019-10-07 14:10:51,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:51,555 INFO L462 AbstractCegarLoop]: Abstraction has 11956 states and 18510 transitions. [2019-10-07 14:10:51,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:10:51,556 INFO L276 IsEmpty]: Start isEmpty. Operand 11956 states and 18510 transitions. [2019-10-07 14:10:51,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:10:51,561 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:51,561 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:10:51,562 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:51,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:51,562 INFO L82 PathProgramCache]: Analyzing trace with hash -910844203, now seen corresponding path program 1 times [2019-10-07 14:10:51,562 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:51,562 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:51,563 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:51,563 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:51,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 14:10:52,310 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:52,311 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:10:52,311 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 14:10:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:52,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 3333 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 14:10:52,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:10:52,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:10:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:10:53,081 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:10:53,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:10:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:10:53,666 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:10:53,667 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [26] total 31 [2019-10-07 14:10:53,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:10:53,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:10:53,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=822, Unknown=0, NotChecked=0, Total=930 [2019-10-07 14:10:53,674 INFO L87 Difference]: Start difference. First operand 11956 states and 18510 transitions. Second operand 7 states. [2019-10-07 14:10:54,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:54,059 INFO L93 Difference]: Finished difference Result 12035 states and 18620 transitions. [2019-10-07 14:10:54,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:10:54,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2019-10-07 14:10:54,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:54,123 INFO L225 Difference]: With dead ends: 12035 [2019-10-07 14:10:54,123 INFO L226 Difference]: Without dead ends: 12018 [2019-10-07 14:10:54,134 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 362 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=880, Unknown=0, NotChecked=0, Total=992 [2019-10-07 14:10:54,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12018 states. [2019-10-07 14:10:54,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12018 to 12016. [2019-10-07 14:10:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12016 states. [2019-10-07 14:10:54,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12016 states to 12016 states and 18572 transitions. [2019-10-07 14:10:54,733 INFO L78 Accepts]: Start accepts. Automaton has 12016 states and 18572 transitions. Word has length 174 [2019-10-07 14:10:54,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:54,733 INFO L462 AbstractCegarLoop]: Abstraction has 12016 states and 18572 transitions. [2019-10-07 14:10:54,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:10:54,733 INFO L276 IsEmpty]: Start isEmpty. Operand 12016 states and 18572 transitions. [2019-10-07 14:10:54,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-07 14:10:54,741 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:54,741 INFO L385 BasicCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:10:54,951 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:10:54,951 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:54,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:54,952 INFO L82 PathProgramCache]: Analyzing trace with hash 377922422, now seen corresponding path program 1 times [2019-10-07 14:10:54,952 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:54,952 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:54,952 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:54,952 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:56,061 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 14:10:56,062 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:56,062 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:10:56,062 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 14:10:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:56,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 3397 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 14:10:56,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:10:56,937 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 35 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:10:56,937 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:10:57,339 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:10:57,752 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:10:58,152 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:10:58,534 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:10:58,929 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:10:59,340 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:10:59,793 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:10:59,960 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-07 14:11:00,231 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:11:00,643 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:11:01,057 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:11:01,466 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:11:01,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:01,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:01,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:01,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:01,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:01,606 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-07 14:11:01,606 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:11:01,636 INFO L162 IcfgInterpreter]: Started Sifa with 172 locations of interest [2019-10-07 14:11:01,636 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:11:01,642 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:11:01,649 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:11:01,650 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:11:49,174 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 762 [2019-10-07 14:11:53,650 WARN L191 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:11:54,106 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:11:54,476 WARN L191 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:11:54,751 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:11:55,301 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:11:55,766 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:11:56,208 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:11:56,706 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:11:57,655 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 1036 [2019-10-07 14:11:58,091 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:11:58,584 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:11:59,036 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:11:59,495 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:11:59,991 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:12:00,011 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:12:00,315 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:12:00,420 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:12:00,754 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 919 [2019-10-07 14:12:00,755 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1086 for LOIs [2019-10-07 14:12:01,228 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:01,657 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:01,777 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:02,503 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:02,956 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:03,383 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:03,508 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:04,237 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:04,721 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:05,190 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:05,439 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:06,179 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:06,977 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1086 [2019-10-07 14:12:07,435 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:07,607 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:08,338 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:08,779 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:09,209 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:09,347 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:10,083 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:10,513 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:10,943 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:11,059 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:11,801 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:12,233 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:12,673 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:12,792 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:13,522 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:13,983 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:14,410 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:14,527 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:15,268 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:15,763 WARN L191 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:16,206 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:16,325 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:17,054 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:17,483 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:17,925 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:18,043 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:18,807 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:19,236 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:19,664 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:19,789 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:20,518 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:20,946 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:21,381 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:21,498 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:22,231 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:22,659 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:23,088 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:12:23,204 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:23,958 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:24,948 WARN L191 SmtUtils]: Spent 944.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:25,679 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:25,803 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:26,536 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:27,878 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:12:28,615 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:28,754 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:29,480 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:30,227 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:30,956 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:31,072 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:31,798 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:32,764 WARN L191 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:33,504 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:33,632 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:34,380 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:35,730 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:12:36,465 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:36,599 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:37,343 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:38,672 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:12:39,411 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:39,530 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:40,275 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:12:41,315 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:12:42,052 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:12:42,195 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:42,933 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:12:43,679 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:44,423 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:44,547 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:45,304 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:46,076 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:46,820 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:46,940 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:47,686 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:49,019 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1267 [2019-10-07 14:12:49,763 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:50,035 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:50,855 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:51,596 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:52,340 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:52,461 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:12:53,206 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:12:54,544 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:12:55,273 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:55,416 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:56,158 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:57,531 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:12:58,259 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:58,381 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:12:59,102 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:12:59,833 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:00,562 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:00,685 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:01,421 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:02,761 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:13:03,496 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:03,619 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:04,353 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:05,672 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:13:06,416 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:06,539 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:07,272 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:08,591 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:13:09,330 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:09,448 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:10,187 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:11,518 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1258 [2019-10-07 14:13:12,258 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:13:12,381 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:13,115 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:14,435 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1260 [2019-10-07 14:13:15,174 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:15,298 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:16,043 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:13:17,384 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:13:18,113 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:18,235 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:18,963 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:20,549 WARN L191 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:13:21,287 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:21,409 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:22,138 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:22,869 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:23,608 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:23,724 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:24,455 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:25,789 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:13:26,527 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:26,648 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:27,375 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:28,682 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:13:29,415 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:29,540 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:30,267 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:30,997 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:31,738 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:31,855 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:32,575 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:33,923 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:13:34,658 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:34,790 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:35,526 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:36,273 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:37,019 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:37,145 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:37,883 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:39,195 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:13:39,930 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:40,048 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:40,791 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:42,116 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:13:42,850 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:42,977 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:43,711 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:45,034 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:13:45,765 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:45,895 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:46,631 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:47,979 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:13:48,711 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:48,831 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:49,562 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:50,292 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:51,022 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:51,138 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:13:51,875 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:13:53,146 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:13:53,879 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:13:54,016 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:54,751 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:56,080 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:13:56,816 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:56,960 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:13:57,702 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:13:58,941 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:13:59,679 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:13:59,799 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:00,533 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:01,777 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:14:02,518 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:14:02,642 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:03,376 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:04,623 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:14:05,368 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:05,494 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:06,235 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:14:07,573 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1260 [2019-10-07 14:14:08,307 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:08,431 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:09,168 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:14:10,420 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:14:11,154 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:11,277 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:12,015 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:14:13,351 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:14:14,082 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:14,204 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:14,931 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:16,244 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:14:16,976 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:17,098 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:17,835 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:18,566 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:19,307 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:19,423 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:20,153 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:20,917 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:21,652 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:21,775 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:22,535 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:23,860 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:14:24,601 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:24,723 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:25,463 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:26,781 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:14:27,516 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:27,633 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:28,372 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:29,632 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:14:30,368 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:30,490 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:31,224 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:32,543 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:14:33,288 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:14:33,415 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:34,152 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:14:35,512 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:14:36,241 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:36,362 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:37,090 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:38,412 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:14:39,143 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:39,270 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:39,999 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:41,330 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:14:42,063 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:42,193 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:42,919 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:44,389 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:14:45,122 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:45,244 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:45,975 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:46,708 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:47,451 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:47,567 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:48,300 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:49,563 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:14:50,299 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:14:50,422 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:51,155 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:52,506 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:14:53,241 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:53,388 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:14:54,126 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:14:54,133 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1112 for LOIs [2019-10-07 14:14:54,600 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:14:55,074 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:14:55,192 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:55,923 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:56,440 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:14:56,925 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:14:57,044 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:14:57,771 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:14:58,674 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1122 [2019-10-07 14:14:59,159 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:14:59,279 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:15:00,007 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:15:00,518 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:15:01,003 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:15:01,119 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:15:01,854 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:15:02,342 WARN L191 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:15:02,826 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:15:02,942 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:15:03,675 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:15:04,161 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:15:04,648 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1122 [2019-10-07 14:15:04,767 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:15:05,499 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:15:05,784 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:15:05,785 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 14:15:05,792 INFO L168 Benchmark]: Toolchain (without parser) took 300359.09 ms. Allocated memory was 135.3 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 97.4 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2019-10-07 14:15:05,792 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 135.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:15:05,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1232.61 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 97.2 MB in the beginning and 137.9 MB in the end (delta: -40.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:15:05,793 INFO L168 Benchmark]: Boogie Preprocessor took 184.81 ms. Allocated memory is still 199.2 MB. Free memory was 137.9 MB in the beginning and 127.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:15:05,793 INFO L168 Benchmark]: RCFGBuilder took 5004.12 ms. Allocated memory was 199.2 MB in the beginning and 323.0 MB in the end (delta: 123.7 MB). Free memory was 127.9 MB in the beginning and 107.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 144.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:15:05,794 INFO L168 Benchmark]: TraceAbstraction took 293933.43 ms. Allocated memory was 323.0 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 107.7 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2019-10-07 14:15:05,795 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 135.3 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1232.61 ms. Allocated memory was 135.3 MB in the beginning and 199.2 MB in the end (delta: 64.0 MB). Free memory was 97.2 MB in the beginning and 137.9 MB in the end (delta: -40.7 MB). Peak memory consumption was 32.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 184.81 ms. Allocated memory is still 199.2 MB. Free memory was 137.9 MB in the beginning and 127.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5004.12 ms. Allocated memory was 199.2 MB in the beginning and 323.0 MB in the end (delta: 123.7 MB). Free memory was 127.9 MB in the beginning and 107.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 144.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 293933.43 ms. Allocated memory was 323.0 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 107.7 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...