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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:06:02,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:06:02,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:06:02,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:06:02,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:06:02,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:06:02,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:06:02,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:06:02,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:06:02,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:06:02,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:06:02,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:06:02,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:06:02,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:06:02,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:06:02,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:06:02,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:06:02,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:06:02,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:06:02,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:06:02,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:06:02,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:06:02,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:06:02,721 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:06:02,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:06:02,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:06:02,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:06:02,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:06:02,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:06:02,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:06:02,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:06:02,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:06:02,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:06:02,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:06:02,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:06:02,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:06:02,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:06:02,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:06:02,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:06:02,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:06:02,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:06:02,737 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 14:06:02,766 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:06:02,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:06:02,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:06:02,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:06:02,769 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:06:02,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:06:02,775 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:06:02,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:06:02,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:06:02,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:06:02,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:06:02,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:06:02,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:06:02,776 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:06:02,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:06:02,777 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:06:02,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:06:02,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:06:02,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:06:02,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:06:02,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:06:02,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:06:02,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:06:02,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:06:02,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:06:02,779 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:06:02,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:06:02,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:06:02,779 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 14:06:03,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:06:03,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:06:03,114 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:06:03,115 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:06:03,115 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:06:03,116 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product18.cil.c [2019-10-07 14:06:03,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a2b8feb/0deb8ee939e64f59a4f5218dc595d8a3/FLAG1e2b0583a [2019-10-07 14:06:03,893 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:06:03,894 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product18.cil.c [2019-10-07 14:06:03,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a2b8feb/0deb8ee939e64f59a4f5218dc595d8a3/FLAG1e2b0583a [2019-10-07 14:06:04,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a2b8feb/0deb8ee939e64f59a4f5218dc595d8a3 [2019-10-07 14:06:04,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:06:04,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:06:04,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:06:04,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:06:04,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:06:04,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:06:04" (1/1) ... [2019-10-07 14:06:04,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60aa197e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:04, skipping insertion in model container [2019-10-07 14:06:04,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:06:04" (1/1) ... [2019-10-07 14:06:04,054 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:06:04,140 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:06:04,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:06:04,840 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:06:04,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:06:05,050 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:06:05,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05 WrapperNode [2019-10-07 14:06:05,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:06:05,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:06:05,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:06:05,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:06:05,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05" (1/1) ... [2019-10-07 14:06:05,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05" (1/1) ... [2019-10-07 14:06:05,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05" (1/1) ... [2019-10-07 14:06:05,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05" (1/1) ... [2019-10-07 14:06:05,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05" (1/1) ... [2019-10-07 14:06:05,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05" (1/1) ... [2019-10-07 14:06:05,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05" (1/1) ... [2019-10-07 14:06:05,254 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:06:05,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:06:05,255 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:06:05,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:06:05,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05" (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 14:06:05,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:06:05,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:06:05,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:06:05,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:06:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:06:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:06:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:06:05,335 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:06:05,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:06:05,336 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:06:05,336 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:06:05,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:06:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:06:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:06:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:06:05,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:06:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:06:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:06:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:06:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:06:05,338 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:06:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:06:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:06:05,339 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:06:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:06:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:06:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:06:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:06:05,340 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:06:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:06:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:06:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:06:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:06:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:06:05,341 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:06:05,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:06:05,342 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:06:05,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:06:05,342 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:06:05,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:06:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:06:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:06:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:06:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:06:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2019-10-07 14:06:05,343 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:06:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__weight [2019-10-07 14:06:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:06:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:06:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:06:05,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:06:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:06:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:06:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:06:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:06:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:06:05,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:06:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:06:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:06:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:06:05,346 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:06:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:06:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:06:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:06:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:06:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:06:05,347 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:06:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:06:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:06:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:06:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:06:05,348 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:06:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:06:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:06:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:06:05,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:06:05,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:06:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:06:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:06:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:06:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:06:05,350 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:06:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:06:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:06:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:06:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:06:05,351 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:06:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:06:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:06:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:06:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:06:05,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:06:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:06:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:06:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:06:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:06:05,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:06:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:06:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:06:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:06:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:06:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:06:05,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:06:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:06:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:06:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:06:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:06:05,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:06:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:06:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:06:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:06:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:06:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:06:05,356 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:06:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:06:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:06:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:06:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:06:05,357 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:06:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:06:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:06:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:06:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:06:05,358 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:06:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:06:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:06:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:06:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:06:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:06:05,359 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:06:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:06:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:06:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:06:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:06:05,360 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:06:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2019-10-07 14:06:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__weight [2019-10-07 14:06:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:06:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:06:05,361 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:06:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:06:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:06:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:06:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:06:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:06:05,362 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:06:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:06:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:06:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:06:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:06:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:06:05,363 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:06:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:06:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:06:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:06:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:06:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:06:05,364 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:06:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:06:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:06:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:06:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:06:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:06:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:06:05,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:06:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:06:05,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:06:10,494 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:06:10,495 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:06:10,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:06:10 BoogieIcfgContainer [2019-10-07 14:06:10,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:06:10,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:06:10,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:06:10,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:06:10,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:06:04" (1/3) ... [2019-10-07 14:06:10,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb6bb85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:06:10, skipping insertion in model container [2019-10-07 14:06:10,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:06:05" (2/3) ... [2019-10-07 14:06:10,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb6bb85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:06:10, skipping insertion in model container [2019-10-07 14:06:10,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:06:10" (3/3) ... [2019-10-07 14:06:10,505 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product18.cil.c [2019-10-07 14:06:10,515 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:06:10,524 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:06:10,535 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:06:10,566 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:06:10,566 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:06:10,566 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:06:10,566 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:06:10,566 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:06:10,567 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:06:10,567 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:06:10,567 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:06:10,597 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states. [2019-10-07 14:06:10,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-07 14:06:10,615 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:10,616 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:06:10,618 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:10,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:10,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1941866427, now seen corresponding path program 1 times [2019-10-07 14:06:10,633 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:10,634 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:10,634 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:10,634 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:11,302 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:06:11,303 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:11,303 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:11,304 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:06:11,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:06:11,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:06:11,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:06:11,321 INFO L87 Difference]: Start difference. First operand 558 states. Second operand 2 states. [2019-10-07 14:06:11,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:11,389 INFO L93 Difference]: Finished difference Result 461 states and 690 transitions. [2019-10-07 14:06:11,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:06:11,391 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 97 [2019-10-07 14:06:11,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:11,417 INFO L225 Difference]: With dead ends: 461 [2019-10-07 14:06:11,417 INFO L226 Difference]: Without dead ends: 427 [2019-10-07 14:06:11,425 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 14:06:11,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2019-10-07 14:06:11,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2019-10-07 14:06:11,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2019-10-07 14:06:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 639 transitions. [2019-10-07 14:06:11,574 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 639 transitions. Word has length 97 [2019-10-07 14:06:11,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:11,577 INFO L462 AbstractCegarLoop]: Abstraction has 427 states and 639 transitions. [2019-10-07 14:06:11,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:06:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 639 transitions. [2019-10-07 14:06:11,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-07 14:06:11,584 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:11,584 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:06:11,585 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:11,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:11,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1144477141, now seen corresponding path program 1 times [2019-10-07 14:06:11,585 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:11,585 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:11,586 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:11,586 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:11,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:12,007 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:06:12,008 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:12,008 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:12,008 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:06:12,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:06:12,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:06:12,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:06:12,014 INFO L87 Difference]: Start difference. First operand 427 states and 639 transitions. Second operand 9 states. [2019-10-07 14:06:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:17,668 INFO L93 Difference]: Finished difference Result 1142 states and 1751 transitions. [2019-10-07 14:06:17,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 14:06:17,669 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2019-10-07 14:06:17,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:17,679 INFO L225 Difference]: With dead ends: 1142 [2019-10-07 14:06:17,679 INFO L226 Difference]: Without dead ends: 768 [2019-10-07 14:06:17,687 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:06:17,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-10-07 14:06:17,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 737. [2019-10-07 14:06:17,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2019-10-07 14:06:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1094 transitions. [2019-10-07 14:06:17,741 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1094 transitions. Word has length 98 [2019-10-07 14:06:17,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:17,742 INFO L462 AbstractCegarLoop]: Abstraction has 737 states and 1094 transitions. [2019-10-07 14:06:17,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:06:17,742 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1094 transitions. [2019-10-07 14:06:17,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-07 14:06:17,746 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:17,747 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:06:17,747 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:17,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:17,748 INFO L82 PathProgramCache]: Analyzing trace with hash -580814009, now seen corresponding path program 1 times [2019-10-07 14:06:17,748 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:17,748 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:17,748 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:17,748 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:17,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:17,941 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:06:17,942 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:17,942 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:17,942 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:06:17,943 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:06:17,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:06:17,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:06:17,944 INFO L87 Difference]: Start difference. First operand 737 states and 1094 transitions. Second operand 3 states. [2019-10-07 14:06:18,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:18,061 INFO L93 Difference]: Finished difference Result 2097 states and 3165 transitions. [2019-10-07 14:06:18,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:06:18,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2019-10-07 14:06:18,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:18,076 INFO L225 Difference]: With dead ends: 2097 [2019-10-07 14:06:18,076 INFO L226 Difference]: Without dead ends: 1415 [2019-10-07 14:06:18,081 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:06:18,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2019-10-07 14:06:18,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1408. [2019-10-07 14:06:18,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1408 states. [2019-10-07 14:06:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 2116 transitions. [2019-10-07 14:06:18,172 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 2116 transitions. Word has length 99 [2019-10-07 14:06:18,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:18,172 INFO L462 AbstractCegarLoop]: Abstraction has 1408 states and 2116 transitions. [2019-10-07 14:06:18,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:06:18,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 2116 transitions. [2019-10-07 14:06:18,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-07 14:06:18,175 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:18,175 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:06:18,176 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:18,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:18,176 INFO L82 PathProgramCache]: Analyzing trace with hash -825660218, now seen corresponding path program 1 times [2019-10-07 14:06:18,177 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:18,177 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:18,177 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:18,177 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:18,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:18,456 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:06:18,456 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:18,457 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:18,457 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:06:18,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:06:18,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:06:18,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:06:18,458 INFO L87 Difference]: Start difference. First operand 1408 states and 2116 transitions. Second operand 6 states. [2019-10-07 14:06:21,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:21,692 INFO L93 Difference]: Finished difference Result 4505 states and 6913 transitions. [2019-10-07 14:06:21,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:06:21,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2019-10-07 14:06:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:21,729 INFO L225 Difference]: With dead ends: 4505 [2019-10-07 14:06:21,729 INFO L226 Difference]: Without dead ends: 3153 [2019-10-07 14:06:21,739 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:06:21,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2019-10-07 14:06:21,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 2842. [2019-10-07 14:06:21,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2842 states. [2019-10-07 14:06:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2842 states to 2842 states and 4359 transitions. [2019-10-07 14:06:21,967 INFO L78 Accepts]: Start accepts. Automaton has 2842 states and 4359 transitions. Word has length 100 [2019-10-07 14:06:21,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:21,967 INFO L462 AbstractCegarLoop]: Abstraction has 2842 states and 4359 transitions. [2019-10-07 14:06:21,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:06:21,968 INFO L276 IsEmpty]: Start isEmpty. Operand 2842 states and 4359 transitions. [2019-10-07 14:06:21,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-10-07 14:06:21,972 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:21,972 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:06:21,972 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:21,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:21,973 INFO L82 PathProgramCache]: Analyzing trace with hash -821262406, now seen corresponding path program 1 times [2019-10-07 14:06:21,973 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:21,973 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:21,973 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:21,974 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:21,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:22,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:22,201 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:06:22,202 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:22,202 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:22,202 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:06:22,203 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:06:22,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:06:22,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:06:22,203 INFO L87 Difference]: Start difference. First operand 2842 states and 4359 transitions. Second operand 8 states. [2019-10-07 14:06:22,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:22,401 INFO L93 Difference]: Finished difference Result 6001 states and 9352 transitions. [2019-10-07 14:06:22,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:06:22,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 126 [2019-10-07 14:06:22,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:22,435 INFO L225 Difference]: With dead ends: 6001 [2019-10-07 14:06:22,435 INFO L226 Difference]: Without dead ends: 3218 [2019-10-07 14:06:22,453 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:06:22,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2019-10-07 14:06:22,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 2874. [2019-10-07 14:06:22,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2874 states. [2019-10-07 14:06:22,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 4391 transitions. [2019-10-07 14:06:22,732 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 4391 transitions. Word has length 126 [2019-10-07 14:06:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:22,733 INFO L462 AbstractCegarLoop]: Abstraction has 2874 states and 4391 transitions. [2019-10-07 14:06:22,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:06:22,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 4391 transitions. [2019-10-07 14:06:22,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:06:22,739 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:22,740 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:06:22,740 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:22,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:22,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1069297882, now seen corresponding path program 1 times [2019-10-07 14:06:22,741 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:22,742 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:22,742 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:22,742 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:22,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:06:23,002 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:23,003 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:23,003 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 14:06:23,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 14:06:23,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 14:06:23,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:06:23,005 INFO L87 Difference]: Start difference. First operand 2874 states and 4391 transitions. Second operand 12 states. [2019-10-07 14:06:30,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:30,104 INFO L93 Difference]: Finished difference Result 8568 states and 13108 transitions. [2019-10-07 14:06:30,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-07 14:06:30,107 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 129 [2019-10-07 14:06:30,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:30,147 INFO L225 Difference]: With dead ends: 8568 [2019-10-07 14:06:30,147 INFO L226 Difference]: Without dead ends: 5749 [2019-10-07 14:06:30,165 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2019-10-07 14:06:30,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5749 states. [2019-10-07 14:06:30,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5749 to 5647. [2019-10-07 14:06:30,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5647 states. [2019-10-07 14:06:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5647 states to 5647 states and 8550 transitions. [2019-10-07 14:06:30,501 INFO L78 Accepts]: Start accepts. Automaton has 5647 states and 8550 transitions. Word has length 129 [2019-10-07 14:06:30,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:30,502 INFO L462 AbstractCegarLoop]: Abstraction has 5647 states and 8550 transitions. [2019-10-07 14:06:30,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 14:06:30,502 INFO L276 IsEmpty]: Start isEmpty. Operand 5647 states and 8550 transitions. [2019-10-07 14:06:30,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-10-07 14:06:30,506 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:30,506 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:06:30,507 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:30,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:30,507 INFO L82 PathProgramCache]: Analyzing trace with hash -750649053, now seen corresponding path program 1 times [2019-10-07 14:06:30,507 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:30,508 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:30,508 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:30,508 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:30,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:30,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:30,729 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:06:30,729 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:30,729 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:30,729 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:06:30,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:06:30,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:06:30,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:06:30,731 INFO L87 Difference]: Start difference. First operand 5647 states and 8550 transitions. Second operand 7 states. [2019-10-07 14:06:34,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:34,833 INFO L93 Difference]: Finished difference Result 14047 states and 21312 transitions. [2019-10-07 14:06:34,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 14:06:34,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 130 [2019-10-07 14:06:34,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:34,905 INFO L225 Difference]: With dead ends: 14047 [2019-10-07 14:06:34,905 INFO L226 Difference]: Without dead ends: 8459 [2019-10-07 14:06:34,952 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:06:34,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8459 states. [2019-10-07 14:06:35,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8459 to 8188. [2019-10-07 14:06:35,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8188 states. [2019-10-07 14:06:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 12433 transitions. [2019-10-07 14:06:35,503 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 12433 transitions. Word has length 130 [2019-10-07 14:06:35,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:35,506 INFO L462 AbstractCegarLoop]: Abstraction has 8188 states and 12433 transitions. [2019-10-07 14:06:35,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:06:35,506 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 12433 transitions. [2019-10-07 14:06:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-10-07 14:06:35,510 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:35,510 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:06:35,510 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:35,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:35,511 INFO L82 PathProgramCache]: Analyzing trace with hash -258647013, now seen corresponding path program 1 times [2019-10-07 14:06:35,511 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:35,511 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:35,511 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:35,512 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:06:35,721 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:35,721 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:35,722 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:06:35,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:06:35,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:06:35,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:06:35,725 INFO L87 Difference]: Start difference. First operand 8188 states and 12433 transitions. Second operand 5 states. [2019-10-07 14:06:36,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:36,151 INFO L93 Difference]: Finished difference Result 15256 states and 23296 transitions. [2019-10-07 14:06:36,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:06:36,152 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2019-10-07 14:06:36,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:36,214 INFO L225 Difference]: With dead ends: 15256 [2019-10-07 14:06:36,214 INFO L226 Difference]: Without dead ends: 8328 [2019-10-07 14:06:36,250 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:06:36,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8328 states. [2019-10-07 14:06:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8328 to 8264. [2019-10-07 14:06:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8264 states. [2019-10-07 14:06:36,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 12517 transitions. [2019-10-07 14:06:36,944 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 12517 transitions. Word has length 134 [2019-10-07 14:06:36,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:36,944 INFO L462 AbstractCegarLoop]: Abstraction has 8264 states and 12517 transitions. [2019-10-07 14:06:36,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:06:36,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 12517 transitions. [2019-10-07 14:06:36,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:06:36,949 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:36,949 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:06:36,949 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:36,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:36,950 INFO L82 PathProgramCache]: Analyzing trace with hash 517344838, now seen corresponding path program 1 times [2019-10-07 14:06:36,950 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:36,950 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:36,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:36,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:36,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:06:37,145 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:37,145 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:37,145 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:06:37,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:06:37,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:06:37,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:06:37,147 INFO L87 Difference]: Start difference. First operand 8264 states and 12517 transitions. Second operand 7 states. [2019-10-07 14:06:37,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:37,685 INFO L93 Difference]: Finished difference Result 16556 states and 25572 transitions. [2019-10-07 14:06:37,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:06:37,689 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2019-10-07 14:06:37,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:37,740 INFO L225 Difference]: With dead ends: 16556 [2019-10-07 14:06:37,741 INFO L226 Difference]: Without dead ends: 8264 [2019-10-07 14:06:37,777 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:06:37,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8264 states. [2019-10-07 14:06:39,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8264 to 8264. [2019-10-07 14:06:39,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8264 states. [2019-10-07 14:06:39,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 12277 transitions. [2019-10-07 14:06:39,159 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 12277 transitions. Word has length 141 [2019-10-07 14:06:39,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:39,160 INFO L462 AbstractCegarLoop]: Abstraction has 8264 states and 12277 transitions. [2019-10-07 14:06:39,160 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:06:39,160 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 12277 transitions. [2019-10-07 14:06:39,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 14:06:39,165 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:39,166 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] [2019-10-07 14:06:39,166 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:39,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:39,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1696151169, now seen corresponding path program 1 times [2019-10-07 14:06:39,167 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:39,167 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:39,167 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:39,167 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:39,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:39,438 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 14:06:39,438 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:39,439 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:39,439 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:06:39,441 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:06:39,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:06:39,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:06:39,442 INFO L87 Difference]: Start difference. First operand 8264 states and 12277 transitions. Second operand 7 states. [2019-10-07 14:06:43,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:06:43,471 INFO L93 Difference]: Finished difference Result 15579 states and 23190 transitions. [2019-10-07 14:06:43,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:06:43,472 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2019-10-07 14:06:43,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:06:43,545 INFO L225 Difference]: With dead ends: 15579 [2019-10-07 14:06:43,546 INFO L226 Difference]: Without dead ends: 8591 [2019-10-07 14:06:43,570 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 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 14:06:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8591 states. [2019-10-07 14:06:44,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8591 to 8400. [2019-10-07 14:06:44,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8400 states. [2019-10-07 14:06:44,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8400 states to 8400 states and 12457 transitions. [2019-10-07 14:06:44,248 INFO L78 Accepts]: Start accepts. Automaton has 8400 states and 12457 transitions. Word has length 143 [2019-10-07 14:06:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:06:44,249 INFO L462 AbstractCegarLoop]: Abstraction has 8400 states and 12457 transitions. [2019-10-07 14:06:44,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:06:44,249 INFO L276 IsEmpty]: Start isEmpty. Operand 8400 states and 12457 transitions. [2019-10-07 14:06:44,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-07 14:06:44,258 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:06:44,259 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:06:44,259 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:06:44,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:06:44,260 INFO L82 PathProgramCache]: Analyzing trace with hash -593248133, now seen corresponding path program 1 times [2019-10-07 14:06:44,260 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:06:44,260 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:44,261 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:44,261 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:06:44,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:06:44,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:06:45,228 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 14:06:45,229 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:06:45,230 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:06:45,230 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-07 14:06:45,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-07 14:06:45,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-07 14:06:45,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:06:45,232 INFO L87 Difference]: Start difference. First operand 8400 states and 12457 transitions. Second operand 28 states. [2019-10-07 14:07:18,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:18,395 INFO L93 Difference]: Finished difference Result 23169 states and 35810 transitions. [2019-10-07 14:07:18,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2019-10-07 14:07:18,400 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 150 [2019-10-07 14:07:18,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:18,477 INFO L225 Difference]: With dead ends: 23169 [2019-10-07 14:07:18,477 INFO L226 Difference]: Without dead ends: 14829 [2019-10-07 14:07:18,506 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3926 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2074, Invalid=9268, Unknown=0, NotChecked=0, Total=11342 [2019-10-07 14:07:18,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14829 states. [2019-10-07 14:07:19,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14829 to 11881. [2019-10-07 14:07:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11881 states. [2019-10-07 14:07:19,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11881 states to 11881 states and 17987 transitions. [2019-10-07 14:07:19,238 INFO L78 Accepts]: Start accepts. Automaton has 11881 states and 17987 transitions. Word has length 150 [2019-10-07 14:07:19,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:19,239 INFO L462 AbstractCegarLoop]: Abstraction has 11881 states and 17987 transitions. [2019-10-07 14:07:19,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-07 14:07:19,239 INFO L276 IsEmpty]: Start isEmpty. Operand 11881 states and 17987 transitions. [2019-10-07 14:07:19,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-07 14:07:19,245 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:19,245 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 14:07:19,246 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:19,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:19,246 INFO L82 PathProgramCache]: Analyzing trace with hash 351931940, now seen corresponding path program 1 times [2019-10-07 14:07:19,247 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:19,247 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:19,247 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:19,247 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:19,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:19,447 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 14:07:19,448 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:19,448 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:19,448 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:07:19,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:07:19,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:07:19,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:07:19,450 INFO L87 Difference]: Start difference. First operand 11881 states and 17987 transitions. Second operand 6 states. [2019-10-07 14:07:20,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:20,644 INFO L93 Difference]: Finished difference Result 12010 states and 18231 transitions. [2019-10-07 14:07:20,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:07:20,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2019-10-07 14:07:20,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:20,715 INFO L225 Difference]: With dead ends: 12010 [2019-10-07 14:07:20,715 INFO L226 Difference]: Without dead ends: 11987 [2019-10-07 14:07:20,724 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:07:20,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11987 states. [2019-10-07 14:07:21,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11987 to 11899. [2019-10-07 14:07:21,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11899 states. [2019-10-07 14:07:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11899 states to 11899 states and 18005 transitions. [2019-10-07 14:07:21,366 INFO L78 Accepts]: Start accepts. Automaton has 11899 states and 18005 transitions. Word has length 148 [2019-10-07 14:07:21,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:21,366 INFO L462 AbstractCegarLoop]: Abstraction has 11899 states and 18005 transitions. [2019-10-07 14:07:21,367 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:07:21,367 INFO L276 IsEmpty]: Start isEmpty. Operand 11899 states and 18005 transitions. [2019-10-07 14:07:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-10-07 14:07:21,373 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:21,373 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] [2019-10-07 14:07:21,373 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:21,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:21,374 INFO L82 PathProgramCache]: Analyzing trace with hash -301026510, now seen corresponding path program 1 times [2019-10-07 14:07:21,374 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:21,374 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:21,374 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:21,375 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:21,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:21,562 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 14:07:21,562 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:21,562 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:07:21,563 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:07:21,563 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:07:21,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:07:21,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:07:21,564 INFO L87 Difference]: Start difference. First operand 11899 states and 18005 transitions. Second operand 9 states. [2019-10-07 14:07:22,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:22,624 INFO L93 Difference]: Finished difference Result 12733 states and 19252 transitions. [2019-10-07 14:07:22,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:07:22,624 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 153 [2019-10-07 14:07:22,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:22,677 INFO L225 Difference]: With dead ends: 12733 [2019-10-07 14:07:22,677 INFO L226 Difference]: Without dead ends: 12710 [2019-10-07 14:07:22,685 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:07:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12710 states. [2019-10-07 14:07:23,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12710 to 12382. [2019-10-07 14:07:23,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12382 states. [2019-10-07 14:07:23,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12382 states to 12382 states and 18717 transitions. [2019-10-07 14:07:23,334 INFO L78 Accepts]: Start accepts. Automaton has 12382 states and 18717 transitions. Word has length 153 [2019-10-07 14:07:23,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:23,335 INFO L462 AbstractCegarLoop]: Abstraction has 12382 states and 18717 transitions. [2019-10-07 14:07:23,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:07:23,335 INFO L276 IsEmpty]: Start isEmpty. Operand 12382 states and 18717 transitions. [2019-10-07 14:07:23,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-07 14:07:23,342 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:23,342 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] [2019-10-07 14:07:23,343 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:23,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:23,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1592429567, now seen corresponding path program 1 times [2019-10-07 14:07:23,343 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:23,343 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:23,344 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:23,344 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:23,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:07:23,611 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:23,611 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:07:23,612 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 14:07:24,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:24,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 3535 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 14:07:24,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:07:24,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:07:24,482 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 14:07:24,483 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:07:24,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:07:25,106 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 14:07:25,107 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:07:25,107 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [13] total 18 [2019-10-07 14:07:25,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:07:25,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:07:25,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:07:25,110 INFO L87 Difference]: Start difference. First operand 12382 states and 18717 transitions. Second operand 7 states. [2019-10-07 14:07:26,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:07:26,070 INFO L93 Difference]: Finished difference Result 12787 states and 19239 transitions. [2019-10-07 14:07:26,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:07:26,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2019-10-07 14:07:26,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:07:26,155 INFO L225 Difference]: With dead ends: 12787 [2019-10-07 14:07:26,155 INFO L226 Difference]: Without dead ends: 12764 [2019-10-07 14:07:26,164 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 339 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:07:26,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12764 states. [2019-10-07 14:07:27,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12764 to 12706. [2019-10-07 14:07:27,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12706 states. [2019-10-07 14:07:27,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12706 states to 12706 states and 19062 transitions. [2019-10-07 14:07:27,339 INFO L78 Accepts]: Start accepts. Automaton has 12706 states and 19062 transitions. Word has length 168 [2019-10-07 14:07:27,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:07:27,340 INFO L462 AbstractCegarLoop]: Abstraction has 12706 states and 19062 transitions. [2019-10-07 14:07:27,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:07:27,340 INFO L276 IsEmpty]: Start isEmpty. Operand 12706 states and 19062 transitions. [2019-10-07 14:07:27,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 14:07:27,350 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:07:27,350 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] [2019-10-07 14:07:27,569 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:07:27,569 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:07:27,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:07:27,570 INFO L82 PathProgramCache]: Analyzing trace with hash -921245766, now seen corresponding path program 1 times [2019-10-07 14:07:27,570 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:07:27,570 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:27,570 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:27,570 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:07:27,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:07:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:27,823 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 14:07:27,823 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:07:27,823 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:07:27,824 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 14:07:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:07:28,566 INFO L256 TraceCheckSpWp]: Trace formula consists of 3599 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-07 14:07:28,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:07:28,871 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 14:07:28,872 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:07:29,252 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:29,683 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:30,098 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:30,431 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-07 14:07:30,777 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:31,151 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:31,566 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:32,007 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:32,386 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:32,812 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:33,247 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:33,688 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:07:33,733 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:07:33,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:07:33,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:07:33,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:07:33,736 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:07:33,849 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 14:07:33,849 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:07:33,884 INFO L162 IcfgInterpreter]: Started Sifa with 166 locations of interest [2019-10-07 14:07:33,885 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:07:33,894 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:07:33,902 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:07:33,902 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:08:20,076 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 775 [2019-10-07 14:08:25,328 WARN L191 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 430 DAG size of output: 347 [2019-10-07 14:08:25,767 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2019-10-07 14:08:26,311 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2019-10-07 14:08:26,626 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2019-10-07 14:08:27,223 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:08:27,928 WARN L191 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:08:28,411 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:08:28,962 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:08:30,423 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1062 DAG size of output: 1060 [2019-10-07 14:08:30,909 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:08:31,456 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:08:31,972 WARN L191 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:08:32,600 WARN L191 SmtUtils]: Spent 625.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:08:33,138 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:08:33,160 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 397 for LOIs [2019-10-07 14:08:33,404 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 743 [2019-10-07 14:08:33,515 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 743 [2019-10-07 14:08:33,886 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 935 [2019-10-07 14:08:33,887 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1110 for LOIs [2019-10-07 14:08:34,359 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:34,850 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:35,099 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:35,902 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:36,383 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:36,854 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:37,137 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:38,146 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:38,661 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:39,132 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:39,257 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:40,059 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:41,027 WARN L191 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 1286 DAG size of output: 1110 [2019-10-07 14:08:41,492 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:41,633 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:42,429 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:42,914 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:44,062 WARN L191 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:44,186 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:44,989 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:45,466 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:45,957 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:46,083 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:46,918 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:47,390 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:47,859 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:47,986 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:48,796 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:49,271 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:49,742 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:49,878 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:50,676 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:51,150 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:51,636 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:51,767 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:52,574 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:53,050 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:53,550 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:53,675 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:54,475 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:54,952 WARN L191 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:55,422 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:55,549 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:56,344 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:56,809 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:57,276 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:57,404 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:08:58,207 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:08:58,672 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:59,138 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:08:59,263 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:09:00,074 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:01,152 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:01,953 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:02,087 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:09:02,902 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:05,412 WARN L191 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:09:06,231 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:06,370 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:09:07,186 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:07,993 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:08,790 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:08,914 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:09:09,713 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:10,636 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:11,450 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:11,581 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:12,401 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:14,692 WARN L191 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:09:15,499 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:15,635 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:16,426 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:17,844 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:09:18,645 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:18,769 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:19,573 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:20,371 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:09:21,169 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:09:21,319 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:22,117 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:22,919 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:23,721 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:23,849 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:24,671 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:09:25,497 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:26,315 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:26,450 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:27,264 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:09:28,707 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:09:29,508 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:29,642 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:30,453 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:09:31,260 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:32,056 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:32,182 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:32,972 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:09:34,415 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:09:35,202 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:35,417 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:09:36,226 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:37,660 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:09:38,463 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:38,594 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:09:39,387 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:40,184 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:40,993 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:41,118 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:09:41,905 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:42,740 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:43,534 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:43,664 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:44,468 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:45,279 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:46,086 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:46,222 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:47,010 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:47,793 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:48,585 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:48,709 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:49,491 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:50,797 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:09:51,587 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:09:51,717 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:52,515 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:53,898 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:09:54,695 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:09:54,825 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:09:55,619 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:09:57,035 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:09:57,813 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:09:57,940 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:09:58,725 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:00,104 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:10:00,874 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:01,003 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:10:01,791 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:02,570 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:03,348 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:03,470 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:10:04,243 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:05,776 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:10:06,552 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:06,687 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:10:07,466 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:08,852 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:10:09,621 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:09,748 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:10:10,533 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:11,307 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:12,094 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:12,217 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:10:12,994 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:14,425 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:10:15,213 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:15,356 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:16,136 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:16,931 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:17,724 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:17,858 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:18,666 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:20,106 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:10:20,902 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:21,032 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:21,839 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:23,176 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:10:23,966 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:10:24,096 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:24,899 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:26,291 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:10:27,085 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:27,219 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:28,012 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:10:29,442 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:10:30,244 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:30,373 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:10:31,162 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:32,576 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:10:33,358 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:33,486 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:10:34,274 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:35,061 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:35,843 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:35,967 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:10:36,752 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:10:38,107 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:10:38,903 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:10:39,057 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:39,864 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:40,676 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:41,483 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:41,613 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:42,411 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:43,738 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:10:44,531 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:10:44,660 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:45,460 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:46,889 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:10:47,689 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:10:47,823 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:48,646 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:50,111 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:10:50,904 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:51,056 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:51,867 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:10:53,297 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:10:54,089 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:54,219 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:55,020 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:10:56,441 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:10:57,230 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:10:57,363 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:10:58,166 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:10:59,600 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:11:00,386 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:00,515 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:01,304 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:02,727 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:11:03,536 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:03,664 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:04,455 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:05,242 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:06,035 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:06,157 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:06,949 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:07,779 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:08,581 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:08,711 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:11:09,505 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:10,318 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:11,113 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:11,247 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:11:12,040 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:13,475 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:11:14,264 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:14,394 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:15,176 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:16,620 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:11:17,403 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:17,550 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:18,349 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:19,771 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:11:20,556 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:20,684 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:21,469 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:22,884 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:11:23,670 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:23,807 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:24,596 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:25,381 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:26,169 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:26,292 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:27,079 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:27,896 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:28,695 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:28,824 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:11:29,616 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:30,947 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:11:31,891 WARN L191 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:11:32,021 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:11:32,815 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:34,139 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:11:34,925 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:11:35,050 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:11:35,843 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:37,383 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1295 DAG size of output: 1288 [2019-10-07 14:11:38,177 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:38,309 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:11:39,106 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:11:39,114 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1136 for LOIs [2019-10-07 14:11:39,631 WARN L191 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:11:40,140 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 1136 [2019-10-07 14:11:40,269 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:41,058 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:41,608 WARN L191 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:11:42,131 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:11:42,259 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:43,055 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:44,017 WARN L191 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 1286 DAG size of output: 1146 [2019-10-07 14:11:44,539 WARN L191 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:11:44,665 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:45,448 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:45,986 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:11:46,511 WARN L191 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:11:46,634 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:47,421 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:47,956 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:11:48,489 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:11:48,613 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:49,417 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:49,950 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:11:50,488 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1146 [2019-10-07 14:11:50,612 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:11:51,404 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:11:51,675 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:11:51,676 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 14:11:51,682 INFO L168 Benchmark]: Toolchain (without parser) took 347643.86 ms. Allocated memory was 138.9 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 100.6 MB in the beginning and 1.9 GB in the end (delta: -1.8 GB). Peak memory consumption was 980.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:11:51,683 INFO L168 Benchmark]: CDTParser took 1.27 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:11:51,683 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1011.37 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.4 MB in the beginning and 142.9 MB in the end (delta: -42.5 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:11:51,683 INFO L168 Benchmark]: Boogie Preprocessor took 202.21 ms. Allocated memory is still 203.9 MB. Free memory was 142.9 MB in the beginning and 133.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:11:51,684 INFO L168 Benchmark]: RCFGBuilder took 5241.61 ms. Allocated memory was 203.9 MB in the beginning and 293.1 MB in the end (delta: 89.1 MB). Free memory was 133.1 MB in the beginning and 183.2 MB in the end (delta: -50.1 MB). Peak memory consumption was 145.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:11:51,684 INFO L168 Benchmark]: TraceAbstraction took 341183.04 ms. Allocated memory was 293.1 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 183.2 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 909.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:11:51,686 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27 ms. Allocated memory is still 138.9 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1011.37 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 100.4 MB in the beginning and 142.9 MB in the end (delta: -42.5 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 202.21 ms. Allocated memory is still 203.9 MB. Free memory was 142.9 MB in the beginning and 133.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5241.61 ms. Allocated memory was 203.9 MB in the beginning and 293.1 MB in the end (delta: 89.1 MB). Free memory was 133.1 MB in the beginning and 183.2 MB in the end (delta: -50.1 MB). Peak memory consumption was 145.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 341183.04 ms. Allocated memory was 293.1 MB in the beginning and 3.0 GB in the end (delta: 2.7 GB). Free memory was 183.2 MB in the beginning and 1.9 GB in the end (delta: -1.7 GB). Peak memory consumption was 909.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...