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_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:04:25,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:04:25,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:04:25,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:04:25,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:04:25,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:04:25,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:04:25,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:04:25,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:04:25,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:04:25,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:04:25,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:04:25,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:04:25,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:04:25,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:04:25,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:04:25,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:04:25,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:04:25,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:04:25,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:04:25,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:04:25,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:04:25,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:04:25,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:04:25,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:04:25,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:04:25,394 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:04:25,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:04:25,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:04:25,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:04:25,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:04:25,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:04:25,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:04:25,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:04:25,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:04:25,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:04:25,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:04:25,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:04:25,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:04:25,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:04:25,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:04:25,406 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 14:04:25,433 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:04:25,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:04:25,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:04:25,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:04:25,436 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:04:25,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:04:25,436 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:04:25,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:04:25,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:04:25,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:04:25,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:04:25,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:04:25,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:04:25,439 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:04:25,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:04:25,439 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:04:25,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:04:25,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:04:25,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:04:25,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:04:25,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:04:25,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:04:25,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:04:25,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:04:25,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:04:25,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:04:25,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:04:25,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:04:25,442 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 14:04:25,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:04:25,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:04:25,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:04:25,800 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:04:25,801 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:04:25,802 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c [2019-10-07 14:04:25,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e8444c4/9560d45fd57248a095540e39a0cbbbb5/FLAG91b42d53d [2019-10-07 14:04:26,496 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:04:26,499 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product03.cil.c [2019-10-07 14:04:26,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e8444c4/9560d45fd57248a095540e39a0cbbbb5/FLAG91b42d53d [2019-10-07 14:04:26,690 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5e8444c4/9560d45fd57248a095540e39a0cbbbb5 [2019-10-07 14:04:26,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:04:26,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:04:26,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:04:26,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:04:26,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:04:26,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:04:26" (1/1) ... [2019-10-07 14:04:26,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9fb768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:26, skipping insertion in model container [2019-10-07 14:04:26,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:04:26" (1/1) ... [2019-10-07 14:04:26,720 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:04:26,788 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:04:27,506 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:04:27,526 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:04:27,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:04:27,770 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:04:27,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27 WrapperNode [2019-10-07 14:04:27,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:04:27,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:04:27,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:04:27,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:04:27,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27" (1/1) ... [2019-10-07 14:04:27,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27" (1/1) ... [2019-10-07 14:04:27,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27" (1/1) ... [2019-10-07 14:04:27,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27" (1/1) ... [2019-10-07 14:04:27,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27" (1/1) ... [2019-10-07 14:04:27,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27" (1/1) ... [2019-10-07 14:04:27,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27" (1/1) ... [2019-10-07 14:04:28,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:04:28,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:04:28,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:04:28,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:04:28,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27" (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 14:04:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:04:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:04:28,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:04:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:04:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:04:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:04:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:04:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:04:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:04:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:04:28,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:04:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:04:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:04:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:04:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:04:28,104 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:04:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:04:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:04:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:04:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:04:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:04:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:04:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:04:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:04:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:04:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:04:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:04:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:04:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:04:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:04:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__base [2019-10-07 14:04:28,109 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:04:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:04:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:04:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-07 14:04:28,110 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:04:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:04:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:04:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:04:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:04:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:04:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:04:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:04:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:04:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:04:28,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:04:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:04:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:04:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:04:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:04:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:04:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:04:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:04:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:04:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:04:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:04:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:04:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:04:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:04:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:04:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:04:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:04:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:04:28,117 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:04:28,117 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:04:28,117 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:04:28,117 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:04:28,117 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:04:28,118 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:04:28,118 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:04:28,118 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:04:28,118 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:04:28,118 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:04:28,119 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:04:28,119 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:04:28,119 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:04:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:04:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:04:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:04:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:04:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:04:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:04:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:04:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:04:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:04:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:04:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:04:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:04:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:04:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:04:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:04:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:04:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:04:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:04:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:04:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:04:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:04:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:04:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:04:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:04:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:04:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:04:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:04:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:04:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:04:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:04:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:04:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:04:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:04:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:04:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:04:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:04:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:04:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:04:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:04:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:04:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:04:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:04:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:04:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:04:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:04:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:04:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:04:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:04:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:04:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:04:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:04:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:04:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:04:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:04:28,132 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:04:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:04:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:04:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:04:28,137 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__base [2019-10-07 14:04:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:04:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:04:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-07 14:04:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:04:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:04:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:04:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:04:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:04:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:04:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:04:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:04:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:04:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:04:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:04:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:04:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:04:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:04:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:04:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:04:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:04:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:04:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:04:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:04:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:04:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:04:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:04:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:04:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:04:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:04:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:04:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:04:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:04:32,866 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:04:32,866 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:04:32,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:04:32 BoogieIcfgContainer [2019-10-07 14:04:32,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:04:32,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:04:32,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:04:32,873 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:04:32,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:04:26" (1/3) ... [2019-10-07 14:04:32,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e29ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:04:32, skipping insertion in model container [2019-10-07 14:04:32,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:04:27" (2/3) ... [2019-10-07 14:04:32,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e29ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:04:32, skipping insertion in model container [2019-10-07 14:04:32,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:04:32" (3/3) ... [2019-10-07 14:04:32,876 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product03.cil.c [2019-10-07 14:04:32,886 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:04:32,895 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:04:32,909 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:04:32,946 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:04:32,946 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:04:32,946 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:04:32,947 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:04:32,947 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:04:32,947 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:04:32,947 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:04:32,947 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:04:32,985 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states. [2019-10-07 14:04:33,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:04:33,007 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:33,008 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:33,011 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:33,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:33,017 INFO L82 PathProgramCache]: Analyzing trace with hash 314312242, now seen corresponding path program 1 times [2019-10-07 14:04:33,026 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:33,027 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:33,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:33,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:33,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:33,768 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:04:33,769 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:33,770 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:33,770 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:04:33,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:04:33,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:04:33,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:04:33,792 INFO L87 Difference]: Start difference. First operand 558 states. Second operand 2 states. [2019-10-07 14:04:33,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:33,896 INFO L93 Difference]: Finished difference Result 467 states and 699 transitions. [2019-10-07 14:04:33,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:04:33,898 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 135 [2019-10-07 14:04:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:33,934 INFO L225 Difference]: With dead ends: 467 [2019-10-07 14:04:33,934 INFO L226 Difference]: Without dead ends: 433 [2019-10-07 14:04:33,944 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 14:04:33,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2019-10-07 14:04:34,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2019-10-07 14:04:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2019-10-07 14:04:34,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 648 transitions. [2019-10-07 14:04:34,090 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 648 transitions. Word has length 135 [2019-10-07 14:04:34,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:34,095 INFO L462 AbstractCegarLoop]: Abstraction has 433 states and 648 transitions. [2019-10-07 14:04:34,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:04:34,096 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 648 transitions. [2019-10-07 14:04:34,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-07 14:04:34,110 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:34,110 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:34,110 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:34,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:34,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1290537219, now seen corresponding path program 1 times [2019-10-07 14:04:34,112 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:34,112 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:34,112 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:34,112 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:04:34,782 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:34,782 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:34,782 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:04:34,792 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:04:34,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:04:34,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:04:34,793 INFO L87 Difference]: Start difference. First operand 433 states and 648 transitions. Second operand 7 states. [2019-10-07 14:04:38,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:38,499 INFO L93 Difference]: Finished difference Result 1204 states and 1855 transitions. [2019-10-07 14:04:38,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:04:38,500 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2019-10-07 14:04:38,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:38,509 INFO L225 Difference]: With dead ends: 1204 [2019-10-07 14:04:38,509 INFO L226 Difference]: Without dead ends: 824 [2019-10-07 14:04:38,516 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:04:38,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2019-10-07 14:04:38,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 799. [2019-10-07 14:04:38,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 799 states. [2019-10-07 14:04:38,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1226 transitions. [2019-10-07 14:04:38,573 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1226 transitions. Word has length 136 [2019-10-07 14:04:38,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:38,574 INFO L462 AbstractCegarLoop]: Abstraction has 799 states and 1226 transitions. [2019-10-07 14:04:38,574 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:04:38,574 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1226 transitions. [2019-10-07 14:04:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-07 14:04:38,577 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:38,578 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:38,578 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:38,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:38,579 INFO L82 PathProgramCache]: Analyzing trace with hash -153028224, now seen corresponding path program 1 times [2019-10-07 14:04:38,579 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:38,579 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:38,579 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:38,579 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:38,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:38,819 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:04:38,819 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:38,820 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:38,820 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:04:38,821 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:04:38,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:04:38,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:04:38,822 INFO L87 Difference]: Start difference. First operand 799 states and 1226 transitions. Second operand 6 states. [2019-10-07 14:04:39,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:39,465 INFO L93 Difference]: Finished difference Result 838 states and 1282 transitions. [2019-10-07 14:04:39,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:04:39,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-10-07 14:04:39,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:39,477 INFO L225 Difference]: With dead ends: 838 [2019-10-07 14:04:39,477 INFO L226 Difference]: Without dead ends: 821 [2019-10-07 14:04:39,479 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 14:04:39,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2019-10-07 14:04:39,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 803. [2019-10-07 14:04:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-07 14:04:39,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1230 transitions. [2019-10-07 14:04:39,565 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1230 transitions. Word has length 140 [2019-10-07 14:04:39,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:39,568 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1230 transitions. [2019-10-07 14:04:39,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:04:39,568 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1230 transitions. [2019-10-07 14:04:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-07 14:04:39,577 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:39,578 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:39,578 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:39,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:39,579 INFO L82 PathProgramCache]: Analyzing trace with hash -918915006, now seen corresponding path program 1 times [2019-10-07 14:04:39,579 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:39,579 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:39,579 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:39,579 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:39,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:04:39,933 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:39,934 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:04:39,934 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:04:39,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:04:39,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:04:39,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:04:39,935 INFO L87 Difference]: Start difference. First operand 803 states and 1230 transitions. Second operand 8 states. [2019-10-07 14:04:40,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:40,012 INFO L93 Difference]: Finished difference Result 824 states and 1256 transitions. [2019-10-07 14:04:40,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:04:40,013 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-10-07 14:04:40,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:40,025 INFO L225 Difference]: With dead ends: 824 [2019-10-07 14:04:40,025 INFO L226 Difference]: Without dead ends: 807 [2019-10-07 14:04:40,027 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:04:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2019-10-07 14:04:40,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 803. [2019-10-07 14:04:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2019-10-07 14:04:40,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1228 transitions. [2019-10-07 14:04:40,087 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1228 transitions. Word has length 145 [2019-10-07 14:04:40,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:40,090 INFO L462 AbstractCegarLoop]: Abstraction has 803 states and 1228 transitions. [2019-10-07 14:04:40,090 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:04:40,090 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1228 transitions. [2019-10-07 14:04:40,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-07 14:04:40,097 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:40,098 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:40,098 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:40,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:40,098 INFO L82 PathProgramCache]: Analyzing trace with hash 117301949, now seen corresponding path program 1 times [2019-10-07 14:04:40,099 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:40,099 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:40,099 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:40,099 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:40,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:04:41,377 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:41,377 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:41,378 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 14:04:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:41,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 3266 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 14:04:41,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:42,115 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:04:42,237 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:42,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:04:42,990 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:04:42,990 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:04:42,991 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [32] total 37 [2019-10-07 14:04:42,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:04:42,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:04:42,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1229, Unknown=0, NotChecked=0, Total=1332 [2019-10-07 14:04:42,993 INFO L87 Difference]: Start difference. First operand 803 states and 1228 transitions. Second operand 7 states. [2019-10-07 14:04:43,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:04:43,086 INFO L93 Difference]: Finished difference Result 846 states and 1282 transitions. [2019-10-07 14:04:43,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:04:43,087 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2019-10-07 14:04:43,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:04:43,094 INFO L225 Difference]: With dead ends: 846 [2019-10-07 14:04:43,094 INFO L226 Difference]: Without dead ends: 829 [2019-10-07 14:04:43,095 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=107, Invalid=1299, Unknown=0, NotChecked=0, Total=1406 [2019-10-07 14:04:43,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2019-10-07 14:04:43,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 815. [2019-10-07 14:04:43,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2019-10-07 14:04:43,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1240 transitions. [2019-10-07 14:04:43,140 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1240 transitions. Word has length 160 [2019-10-07 14:04:43,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:04:43,141 INFO L462 AbstractCegarLoop]: Abstraction has 815 states and 1240 transitions. [2019-10-07 14:04:43,141 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:04:43,141 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1240 transitions. [2019-10-07 14:04:43,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-07 14:04:43,146 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:04:43,146 INFO L385 BasicCegarLoop]: trace histogram [7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:04:43,363 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:04:43,364 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:04:43,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:04:43,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1951000831, now seen corresponding path program 1 times [2019-10-07 14:04:43,365 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:04:43,365 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:43,365 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:43,366 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:04:43,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:04:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:43,892 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:04:43,893 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:04:43,893 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:04:43,893 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 14:04:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:04:44,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 3330 conjuncts, 114 conjunts are in the unsatisfiable core [2019-10-07 14:04:44,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:04:45,164 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2019-10-07 14:04:45,827 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2019-10-07 14:04:46,155 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2019-10-07 14:04:46,388 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-07 14:04:46,389 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:04:46,560 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:04:46,856 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:05:35,611 WARN L191 SmtUtils]: Spent 48.25 s on a formula simplification. DAG size of input: 1441 DAG size of output: 51 [2019-10-07 14:05:36,474 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:36,824 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:37,176 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:37,792 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:38,142 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:38,515 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:39,115 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:39,461 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:39,817 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:39,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 14:05:39,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:39,991 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:39,992 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:40,321 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:40,677 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:41,031 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:41,557 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:42,165 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:42,898 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:05:42,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:43,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 14:05:43,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:43,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:43,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:43,041 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:43,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:43,068 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:43,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:05:43,217 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:05:43,501 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:06:31,675 WARN L191 SmtUtils]: Spent 47.74 s on a formula simplification. DAG size of input: 1441 DAG size of output: 51 [2019-10-07 14:06:32,224 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-10-07 14:07:22,287 WARN L191 SmtUtils]: Spent 49.76 s on a formula simplification. DAG size of input: 1468 DAG size of output: 51 [2019-10-07 14:07:22,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:07:22,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:10,494 WARN L191 SmtUtils]: Spent 47.39 s on a formula simplification. DAG size of input: 1441 DAG size of output: 51 [2019-10-07 14:08:10,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:10,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:10,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-10-07 14:08:10,972 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:08:11,232 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:08:11,288 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:11,289 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:11,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:11,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:11,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:11,291 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:08:11,401 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-07 14:08:11,402 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:08:11,431 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-07 14:08:11,432 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:08:11,439 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:08:11,447 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:08:11,448 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:08:59,286 WARN L191 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 760 [2019-10-07 14:09:04,215 WARN L191 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:09:04,647 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:09:05,258 WARN L191 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:09:05,663 WARN L191 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 846 [2019-10-07 14:09:06,323 WARN L191 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:09:06,913 WARN L191 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:09:07,388 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:09:07,937 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:09:08,832 WARN L191 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 1032 [2019-10-07 14:09:09,313 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:09:09,850 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:09:10,312 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:09:10,793 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:09:11,319 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1032 [2019-10-07 14:09:11,340 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 385 for LOIs [2019-10-07 14:09:11,578 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 729 [2019-10-07 14:09:11,700 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 729 [2019-10-07 14:09:12,073 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 915 [2019-10-07 14:09:12,074 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1086 for LOIs [2019-10-07 14:09:12,524 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:12,978 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:13,101 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:13,861 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:14,346 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:14,804 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:14,928 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:15,716 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:16,205 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:16,678 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:16,927 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:17,698 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:19,196 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1086 [2019-10-07 14:09:19,657 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:19,826 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:20,612 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:21,109 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:21,569 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:21,690 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:22,480 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:22,941 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:23,425 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:23,549 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:24,312 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:24,802 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:25,275 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:25,401 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:26,194 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:26,654 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:27,117 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:27,237 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:28,021 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:28,479 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:28,956 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:29,086 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:29,860 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:30,332 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:30,804 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:30,928 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:31,705 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:32,185 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:32,644 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:32,762 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:33,544 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:34,002 WARN L191 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:34,474 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:34,601 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:35,396 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:35,860 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:36,322 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:09:36,439 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:37,231 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:38,436 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:39,182 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:39,314 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:40,086 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:41,465 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:09:42,232 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:42,374 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:43,172 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:43,954 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:44,747 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:44,867 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:09:45,628 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:09:46,447 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:47,221 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:47,348 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:09:48,135 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:49,549 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:09:50,339 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:50,474 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:09:51,278 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:52,652 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:09:53,448 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:53,571 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:09:54,328 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:55,124 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:09:55,927 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:09:56,054 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:09:56,822 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:57,602 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:58,373 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:09:58,501 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:09:59,273 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:10:00,067 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:00,870 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:00,995 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:01,788 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:10:03,136 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1256 DAG size of output: 1252 [2019-10-07 14:10:03,931 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:04,066 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:04,857 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:10:05,622 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:06,384 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:06,505 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:07,275 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:10:08,678 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:10:09,478 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:09,607 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:10,372 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:11,788 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:10:12,578 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:12,703 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:13,465 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:14,225 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:14,998 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:15,115 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:15,885 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:16,682 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:17,460 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:17,586 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:18,363 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:19,662 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:10:20,435 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:10:20,561 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:21,353 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:22,644 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:10:23,435 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:10:23,556 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:24,360 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:25,723 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:10:26,481 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:26,638 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:27,413 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:28,775 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:10:29,557 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:10:29,685 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:30,447 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:10:31,814 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:10:32,602 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:32,758 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:33,514 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:35,029 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:10:35,784 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:35,911 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:36,666 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:37,442 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:38,208 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:38,333 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:39,085 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:40,462 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:10:41,234 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:41,358 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:42,132 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:43,485 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:10:44,260 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:44,384 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:45,151 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:46,537 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:10:47,326 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:47,450 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:48,236 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:49,600 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:10:50,355 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:50,480 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:51,247 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:52,024 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:52,800 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:52,922 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:10:53,696 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:10:54,515 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:55,306 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:55,435 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:56,212 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:10:57,575 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:10:58,352 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:10:58,477 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:10:59,241 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:00,584 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:11:01,347 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:11:01,470 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:02,240 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:03,650 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:11:04,411 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:04,540 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:05,328 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:06,712 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:11:07,504 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:11:07,755 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:08,566 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:11:09,981 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:11:10,767 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:10,889 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:11:11,674 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:13,049 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:11:13,829 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:13,983 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:11:14,738 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:15,512 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:16,272 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:16,390 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:11:17,160 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:17,945 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:18,732 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:18,862 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:19,643 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:20,415 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:21,199 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:21,323 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:22,097 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:23,498 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:11:24,272 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:24,397 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:11:25,169 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:26,547 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:11:27,306 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:27,437 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:11:28,191 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:28,946 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:29,730 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:29,854 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:11:30,641 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:32,044 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:11:32,811 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:11:32,940 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:33,735 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:35,154 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1250 [2019-10-07 14:11:35,917 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:11:36,044 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:36,804 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:37,568 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:11:38,352 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:11:38,473 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:39,254 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:40,541 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:11:41,319 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:41,451 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:42,209 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:43,624 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:11:44,394 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:44,523 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:11:45,273 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:46,685 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:11:47,447 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:47,578 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:11:48,330 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:49,106 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:49,866 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:49,986 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:11:50,738 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:11:51,530 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:52,326 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:52,450 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:53,219 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:54,612 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:11:55,378 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:55,503 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:56,291 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:57,646 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1254 DAG size of output: 1252 [2019-10-07 14:11:58,413 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:11:58,535 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:11:59,306 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:12:00,607 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1259 DAG size of output: 1252 [2019-10-07 14:12:01,386 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:12:01,524 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:12:02,285 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1252 [2019-10-07 14:12:03,643 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:12:04,431 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:12:04,554 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:12:05,320 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:12:06,730 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:12:07,513 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:12:07,637 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:12:08,421 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:12:09,793 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1261 DAG size of output: 1254 [2019-10-07 14:12:10,588 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:12:10,710 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 449 [2019-10-07 14:12:11,475 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1254 [2019-10-07 14:12:11,481 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1106 for LOIs [2019-10-07 14:12:11,971 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1106 [2019-10-07 14:12:12,458 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 1106 [2019-10-07 14:12:12,582 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:12:13,325 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:12:13,866 WARN L191 SmtUtils]: Spent 510.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:12:14,363 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:12:14,485 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:12:15,248 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:12:16,166 WARN L191 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1116 [2019-10-07 14:12:16,669 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:12:16,801 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:12:17,555 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:12:18,067 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:12:18,573 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:12:18,688 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:12:19,438 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:12:19,942 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:12:20,466 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:12:20,581 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:12:21,352 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:12:21,852 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:12:22,362 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 1116 [2019-10-07 14:12:22,478 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2019-10-07 14:12:23,238 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:12:23,513 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:12:23,515 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 14:12:23,522 INFO L168 Benchmark]: Toolchain (without parser) took 476818.47 ms. Allocated memory was 137.9 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 99.9 MB in the beginning and 1.1 GB in the end (delta: -951.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 14:12:23,522 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:12:23,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1068.33 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.7 MB in the beginning and 140.6 MB in the end (delta: -40.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:12:23,524 INFO L168 Benchmark]: Boogie Preprocessor took 244.97 ms. Allocated memory is still 201.3 MB. Free memory was 140.6 MB in the beginning and 131.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:12:23,528 INFO L168 Benchmark]: RCFGBuilder took 4850.12 ms. Allocated memory was 201.3 MB in the beginning and 304.1 MB in the end (delta: 102.8 MB). Free memory was 131.3 MB in the beginning and 231.5 MB in the end (delta: -100.2 MB). Peak memory consumption was 163.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:12:23,529 INFO L168 Benchmark]: TraceAbstraction took 470650.13 ms. Allocated memory was 304.1 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 231.5 MB in the beginning and 1.1 GB in the end (delta: -819.9 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2019-10-07 14:12:23,530 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1068.33 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 99.7 MB in the beginning and 140.6 MB in the end (delta: -40.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 244.97 ms. Allocated memory is still 201.3 MB. Free memory was 140.6 MB in the beginning and 131.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4850.12 ms. Allocated memory was 201.3 MB in the beginning and 304.1 MB in the end (delta: 102.8 MB). Free memory was 131.3 MB in the beginning and 231.5 MB in the end (delta: -100.2 MB). Peak memory consumption was 163.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 470650.13 ms. Allocated memory was 304.1 MB in the beginning and 2.7 GB in the end (delta: 2.4 GB). Free memory was 231.5 MB in the beginning and 1.1 GB in the end (delta: -819.9 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...