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_spec3_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:26:15,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:26:15,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:26:15,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:26:15,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:26:15,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:26:15,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:26:15,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:26:15,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:26:15,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:26:15,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:26:15,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:26:15,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:26:15,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:26:15,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:26:15,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:26:15,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:26:15,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:26:15,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:26:15,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:26:15,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:26:15,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:26:15,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:26:15,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:26:15,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:26:15,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:26:15,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:26:15,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:26:15,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:26:15,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:26:15,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:26:15,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:26:15,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:26:15,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:26:15,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:26:15,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:26:15,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:26:15,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:26:15,715 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:26:15,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:26:15,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:26:15,718 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 14:26:15,739 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:26:15,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:26:15,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:26:15,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:26:15,742 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:26:15,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:26:15,742 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:26:15,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:26:15,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:26:15,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:26:15,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:26:15,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:26:15,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:26:15,745 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:26:15,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:26:15,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:26:15,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:26:15,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:26:15,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:26:15,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:26:15,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:26:15,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:26:15,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:26:15,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:26:15,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:26:15,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:26:15,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:26:15,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:26:15,748 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 14:26:16,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:26:16,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:26:16,075 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:26:16,076 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:26:16,077 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:26:16,078 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product20.cil.c [2019-10-07 14:26:16,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18917339c/cbd67c36e28a49b08938d9c815f71d04/FLAG832416f61 [2019-10-07 14:26:16,837 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:26:16,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product20.cil.c [2019-10-07 14:26:16,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18917339c/cbd67c36e28a49b08938d9c815f71d04/FLAG832416f61 [2019-10-07 14:26:17,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18917339c/cbd67c36e28a49b08938d9c815f71d04 [2019-10-07 14:26:17,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:26:17,036 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:26:17,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:26:17,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:26:17,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:26:17,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:26:17" (1/1) ... [2019-10-07 14:26:17,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46cde57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:17, skipping insertion in model container [2019-10-07 14:26:17,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:26:17" (1/1) ... [2019-10-07 14:26:17,058 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:26:17,141 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:26:17,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:26:17,965 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:26:18,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:26:18,170 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:26:18,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18 WrapperNode [2019-10-07 14:26:18,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:26:18,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:26:18,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:26:18,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:26:18,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18" (1/1) ... [2019-10-07 14:26:18,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18" (1/1) ... [2019-10-07 14:26:18,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18" (1/1) ... [2019-10-07 14:26:18,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18" (1/1) ... [2019-10-07 14:26:18,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18" (1/1) ... [2019-10-07 14:26:18,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18" (1/1) ... [2019-10-07 14:26:18,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18" (1/1) ... [2019-10-07 14:26:18,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:26:18,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:26:18,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:26:18,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:26:18,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18" (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 14:26:18,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:26:18,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:26:18,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:26:18,465 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:26:18,466 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:26:18,466 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:26:18,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:26:18,466 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:26:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:26:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:26:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:26:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:26:18,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:26:18,468 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:26:18,468 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:26:18,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:26:18,469 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:26:18,469 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:26:18,469 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:26:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:26:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:26:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:26:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:26:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:26:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:26:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:26:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:26:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:26:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:26:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:26:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:26:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:26:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:26:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:26:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:26:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:26:18,473 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:26:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-07 14:26:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:26:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-07 14:26:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:26:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:26:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:26:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:26:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:26:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:26:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:26:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:26:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:26:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:26:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:26:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:26:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:26:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:26:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:26:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:26:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:26:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:26:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:26:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:26:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:26:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:26:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:26:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:26:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:26:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:26:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:26:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:26:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:26:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:26:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:26:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:26:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:26:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:26:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:26:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:26:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:26:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:26:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:26:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:26:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:26:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:26:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:26:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:26:18,483 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:26:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:26:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:26:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:26:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:26:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:26:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:26:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:26:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:26:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:26:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:26:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:26:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:26:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:26:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:26:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:26:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:26:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:26:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:26:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:26:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:26:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:26:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:26:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:26:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:26:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:26:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:26:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:26:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:26:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:26:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:26:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:26:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:26:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:26:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:26:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:26:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:26:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:26:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-07 14:26:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-07 14:26:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-07 14:26:18,490 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-07 14:26:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:26:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:26:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:26:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:26:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:26:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:26:18,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:26:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:26:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:26:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:26:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:26:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:26:18,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:26:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:26:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:26:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:26:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:26:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:26:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:26:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:26:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:26:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:26:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:26:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:26:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:26:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:26:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:26:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:26:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:26:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:26:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:26:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:26:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:26:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:26:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:26:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:26:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:26:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:26:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:26:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:26:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:26:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:26:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:26:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:26:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:26:23,898 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:26:23,898 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:26:23,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:26:23 BoogieIcfgContainer [2019-10-07 14:26:23,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:26:23,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:26:23,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:26:23,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:26:23,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:26:17" (1/3) ... [2019-10-07 14:26:23,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acc633c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:26:23, skipping insertion in model container [2019-10-07 14:26:23,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:26:18" (2/3) ... [2019-10-07 14:26:23,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acc633c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:26:23, skipping insertion in model container [2019-10-07 14:26:23,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:26:23" (3/3) ... [2019-10-07 14:26:23,909 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product20.cil.c [2019-10-07 14:26:23,919 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:26:23,928 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:26:23,940 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:26:23,972 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:26:23,973 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:26:23,973 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:26:23,973 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:26:23,973 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:26:23,973 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:26:23,973 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:26:23,974 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:26:24,008 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-10-07 14:26:24,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-07 14:26:24,020 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:26:24,021 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:26:24,023 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:26:24,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:26:24,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1386920768, now seen corresponding path program 1 times [2019-10-07 14:26:24,039 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:26:24,039 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:24,040 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:24,040 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:24,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:26:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:24,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:26:24,780 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:24,781 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:26:24,781 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:26:24,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:26:24,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:26:24,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:26:24,806 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 8 states. [2019-10-07 14:26:28,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:26:28,353 INFO L93 Difference]: Finished difference Result 1738 states and 2656 transitions. [2019-10-07 14:26:28,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-07 14:26:28,356 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2019-10-07 14:26:28,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:26:28,392 INFO L225 Difference]: With dead ends: 1738 [2019-10-07 14:26:28,393 INFO L226 Difference]: Without dead ends: 1256 [2019-10-07 14:26:28,404 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:26:28,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2019-10-07 14:26:28,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1246. [2019-10-07 14:26:28,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1246 states. [2019-10-07 14:26:28,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1246 states to 1246 states and 1856 transitions. [2019-10-07 14:26:28,589 INFO L78 Accepts]: Start accepts. Automaton has 1246 states and 1856 transitions. Word has length 80 [2019-10-07 14:26:28,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:26:28,590 INFO L462 AbstractCegarLoop]: Abstraction has 1246 states and 1856 transitions. [2019-10-07 14:26:28,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:26:28,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states and 1856 transitions. [2019-10-07 14:26:28,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 14:26:28,595 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:26:28,595 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:26:28,595 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:26:28,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:26:28,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1331562634, now seen corresponding path program 1 times [2019-10-07 14:26:28,596 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:26:28,596 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:28,596 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:28,596 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:28,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:26:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:28,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 14:26:28,875 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:28,875 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:26:28,875 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:26:28,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:26:28,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:26:28,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:26:28,878 INFO L87 Difference]: Start difference. First operand 1246 states and 1856 transitions. Second operand 10 states. [2019-10-07 14:26:29,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:26:29,998 INFO L93 Difference]: Finished difference Result 1274 states and 1890 transitions. [2019-10-07 14:26:29,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 14:26:29,999 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2019-10-07 14:26:30,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:26:30,012 INFO L225 Difference]: With dead ends: 1274 [2019-10-07 14:26:30,013 INFO L226 Difference]: Without dead ends: 1271 [2019-10-07 14:26:30,015 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:26:30,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1271 states. [2019-10-07 14:26:30,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1271 to 1248. [2019-10-07 14:26:30,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1248 states. [2019-10-07 14:26:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1856 transitions. [2019-10-07 14:26:30,102 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1856 transitions. Word has length 81 [2019-10-07 14:26:30,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:26:30,105 INFO L462 AbstractCegarLoop]: Abstraction has 1248 states and 1856 transitions. [2019-10-07 14:26:30,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:26:30,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1856 transitions. [2019-10-07 14:26:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-07 14:26:30,116 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:26:30,123 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:26:30,123 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:26:30,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:26:30,125 INFO L82 PathProgramCache]: Analyzing trace with hash 429486188, now seen corresponding path program 1 times [2019-10-07 14:26:30,125 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:26:30,125 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:30,125 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:30,125 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:30,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:26:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:30,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:26:30,370 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:30,370 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:26:30,371 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:26:30,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:26:30,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:26:30,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:26:30,373 INFO L87 Difference]: Start difference. First operand 1248 states and 1856 transitions. Second operand 3 states. [2019-10-07 14:26:30,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:26:30,589 INFO L93 Difference]: Finished difference Result 3565 states and 5418 transitions. [2019-10-07 14:26:30,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:26:30,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-10-07 14:26:30,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:26:30,611 INFO L225 Difference]: With dead ends: 3565 [2019-10-07 14:26:30,612 INFO L226 Difference]: Without dead ends: 2348 [2019-10-07 14:26:30,622 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:26:30,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2348 states. [2019-10-07 14:26:30,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2348 to 2280. [2019-10-07 14:26:30,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2280 states. [2019-10-07 14:26:30,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2280 states to 2280 states and 3419 transitions. [2019-10-07 14:26:30,768 INFO L78 Accepts]: Start accepts. Automaton has 2280 states and 3419 transitions. Word has length 82 [2019-10-07 14:26:30,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:26:30,768 INFO L462 AbstractCegarLoop]: Abstraction has 2280 states and 3419 transitions. [2019-10-07 14:26:30,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:26:30,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2280 states and 3419 transitions. [2019-10-07 14:26:30,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-10-07 14:26:30,770 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:26:30,770 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:26:30,771 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:26:30,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:26:30,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1093732194, now seen corresponding path program 1 times [2019-10-07 14:26:30,771 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:26:30,772 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:30,772 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:30,772 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:26:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:30,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 14:26:30,979 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:30,979 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:26:30,979 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 14:26:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:31,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:26:31,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:26:31,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:26:31,907 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:26:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:26:32,011 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:26:32,012 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2019-10-07 14:26:32,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:26:32,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:26:32,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:26:32,013 INFO L87 Difference]: Start difference. First operand 2280 states and 3419 transitions. Second operand 3 states. [2019-10-07 14:26:32,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:26:32,227 INFO L93 Difference]: Finished difference Result 4991 states and 7565 transitions. [2019-10-07 14:26:32,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:26:32,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2019-10-07 14:26:32,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:26:32,255 INFO L225 Difference]: With dead ends: 4991 [2019-10-07 14:26:32,256 INFO L226 Difference]: Without dead ends: 2742 [2019-10-07 14:26:32,269 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:26:32,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2019-10-07 14:26:32,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 2686. [2019-10-07 14:26:32,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2686 states. [2019-10-07 14:26:32,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 4041 transitions. [2019-10-07 14:26:32,461 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 4041 transitions. Word has length 81 [2019-10-07 14:26:32,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:26:32,462 INFO L462 AbstractCegarLoop]: Abstraction has 2686 states and 4041 transitions. [2019-10-07 14:26:32,462 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:26:32,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 4041 transitions. [2019-10-07 14:26:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 14:26:32,467 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:26:32,467 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:26:32,682 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:26:32,683 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:26:32,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:26:32,683 INFO L82 PathProgramCache]: Analyzing trace with hash 204407747, now seen corresponding path program 1 times [2019-10-07 14:26:32,684 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:26:32,684 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:32,684 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:32,685 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:26:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:33,041 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 14:26:33,041 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:33,041 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:26:33,042 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 14:26:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:33,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 3276 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-07 14:26:33,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:26:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:26:33,904 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:26:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:26:34,079 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:26:34,079 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [11] total 12 [2019-10-07 14:26:34,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:26:34,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:26:34,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:26:34,081 INFO L87 Difference]: Start difference. First operand 2686 states and 4041 transitions. Second operand 3 states. [2019-10-07 14:26:34,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:26:34,287 INFO L93 Difference]: Finished difference Result 5814 states and 8869 transitions. [2019-10-07 14:26:34,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:26:34,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-10-07 14:26:34,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:26:34,315 INFO L225 Difference]: With dead ends: 5814 [2019-10-07 14:26:34,315 INFO L226 Difference]: Without dead ends: 3159 [2019-10-07 14:26:34,330 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 258 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:26:34,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3159 states. [2019-10-07 14:26:34,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3159 to 3052. [2019-10-07 14:26:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3052 states. [2019-10-07 14:26:34,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3052 states to 3052 states and 4600 transitions. [2019-10-07 14:26:34,567 INFO L78 Accepts]: Start accepts. Automaton has 3052 states and 4600 transitions. Word has length 128 [2019-10-07 14:26:34,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:26:34,570 INFO L462 AbstractCegarLoop]: Abstraction has 3052 states and 4600 transitions. [2019-10-07 14:26:34,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:26:34,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3052 states and 4600 transitions. [2019-10-07 14:26:34,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 14:26:34,578 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:26:34,581 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:26:34,791 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:26:34,791 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:26:34,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:26:34,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1314992681, now seen corresponding path program 1 times [2019-10-07 14:26:34,792 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:26:34,792 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:34,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:34,793 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:34,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:26:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:26:35,278 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:35,278 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:26:35,279 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:26:35,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:26:35,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:26:35,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:26:35,282 INFO L87 Difference]: Start difference. First operand 3052 states and 4600 transitions. Second operand 10 states. [2019-10-07 14:26:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:26:37,018 INFO L93 Difference]: Finished difference Result 6791 states and 10251 transitions. [2019-10-07 14:26:37,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 14:26:37,021 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 128 [2019-10-07 14:26:37,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:26:37,052 INFO L225 Difference]: With dead ends: 6791 [2019-10-07 14:26:37,052 INFO L226 Difference]: Without dead ends: 3770 [2019-10-07 14:26:37,069 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:26:37,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3770 states. [2019-10-07 14:26:37,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3770 to 3754. [2019-10-07 14:26:37,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3754 states. [2019-10-07 14:26:37,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5603 transitions. [2019-10-07 14:26:37,308 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5603 transitions. Word has length 128 [2019-10-07 14:26:37,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:26:37,308 INFO L462 AbstractCegarLoop]: Abstraction has 3754 states and 5603 transitions. [2019-10-07 14:26:37,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:26:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5603 transitions. [2019-10-07 14:26:37,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-10-07 14:26:37,316 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:26:37,317 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:26:37,317 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:26:37,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:26:37,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1427492217, now seen corresponding path program 1 times [2019-10-07 14:26:37,318 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:26:37,318 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:37,319 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:37,319 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:37,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:26:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:37,677 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 4 [2019-10-07 14:26:37,691 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:26:37,692 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:37,692 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:26:37,692 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:26:37,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:26:37,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:26:37,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:26:37,696 INFO L87 Difference]: Start difference. First operand 3754 states and 5603 transitions. Second operand 7 states. [2019-10-07 14:26:40,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:26:40,893 INFO L93 Difference]: Finished difference Result 13909 states and 21627 transitions. [2019-10-07 14:26:40,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-07 14:26:40,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2019-10-07 14:26:40,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:26:41,074 INFO L225 Difference]: With dead ends: 13909 [2019-10-07 14:26:41,075 INFO L226 Difference]: Without dead ends: 10186 [2019-10-07 14:26:41,103 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:26:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10186 states. [2019-10-07 14:26:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10186 to 10019. [2019-10-07 14:26:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10019 states. [2019-10-07 14:26:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10019 states to 10019 states and 15315 transitions. [2019-10-07 14:26:41,603 INFO L78 Accepts]: Start accepts. Automaton has 10019 states and 15315 transitions. Word has length 129 [2019-10-07 14:26:41,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:26:41,604 INFO L462 AbstractCegarLoop]: Abstraction has 10019 states and 15315 transitions. [2019-10-07 14:26:41,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:26:41,605 INFO L276 IsEmpty]: Start isEmpty. Operand 10019 states and 15315 transitions. [2019-10-07 14:26:41,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-07 14:26:41,608 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:26:41,609 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:26:41,609 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:26:41,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:26:41,609 INFO L82 PathProgramCache]: Analyzing trace with hash 2126649736, now seen corresponding path program 1 times [2019-10-07 14:26:41,610 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:26:41,610 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:41,610 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:41,610 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:26:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:41,901 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-07 14:26:41,902 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:41,902 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:26:41,902 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 14:26:41,903 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:26:41,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:26:41,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:26:41,904 INFO L87 Difference]: Start difference. First operand 10019 states and 15315 transitions. Second operand 10 states. [2019-10-07 14:26:45,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:26:45,849 INFO L93 Difference]: Finished difference Result 36920 states and 59649 transitions. [2019-10-07 14:26:45,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 14:26:45,855 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-07 14:26:45,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:26:46,071 INFO L225 Difference]: With dead ends: 36920 [2019-10-07 14:26:46,073 INFO L226 Difference]: Without dead ends: 26932 [2019-10-07 14:26:46,158 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:26:46,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26932 states. [2019-10-07 14:26:48,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26932 to 26645. [2019-10-07 14:26:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26645 states. [2019-10-07 14:26:48,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26645 states to 26645 states and 42188 transitions. [2019-10-07 14:26:48,445 INFO L78 Accepts]: Start accepts. Automaton has 26645 states and 42188 transitions. Word has length 135 [2019-10-07 14:26:48,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:26:48,446 INFO L462 AbstractCegarLoop]: Abstraction has 26645 states and 42188 transitions. [2019-10-07 14:26:48,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:26:48,446 INFO L276 IsEmpty]: Start isEmpty. Operand 26645 states and 42188 transitions. [2019-10-07 14:26:48,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:26:48,450 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:26:48,450 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-07 14:26:48,451 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:26:48,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:26:48,451 INFO L82 PathProgramCache]: Analyzing trace with hash -2043946547, now seen corresponding path program 1 times [2019-10-07 14:26:48,451 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:26:48,452 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:48,452 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:48,452 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:26:48,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:26:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:48,997 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:26:48,998 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:26:48,998 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:26:48,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:26:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:26:49,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 3319 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-07 14:26:49,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:26:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-07 14:26:49,803 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:26:50,169 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:26:50,170 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:26:50,205 INFO L162 IcfgInterpreter]: Started Sifa with 126 locations of interest [2019-10-07 14:26:50,205 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:26:50,219 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:26:50,228 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:26:50,228 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:27:47,124 WARN L191 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 769 [2019-10-07 14:27:53,288 WARN L191 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 430 DAG size of output: 347 [2019-10-07 14:27:53,796 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:27:54,262 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:27:54,628 WARN L191 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 862 [2019-10-07 14:27:55,245 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:27:55,795 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:27:56,302 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:27:56,874 WARN L191 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:27:57,928 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 1050 DAG size of output: 1048 [2019-10-07 14:27:58,390 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:27:58,915 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:27:59,408 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:27:59,876 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:28:00,415 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1048 [2019-10-07 14:28:00,439 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:28:00,740 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 737 [2019-10-07 14:28:00,878 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 737 [2019-10-07 14:28:01,233 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:28:01,235 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1094 for LOIs [2019-10-07 14:28:01,706 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:02,162 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:02,420 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:03,191 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:03,667 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:04,160 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:04,289 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:05,080 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:05,589 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:06,039 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:06,164 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:06,913 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:07,812 WARN L191 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1094 [2019-10-07 14:28:08,273 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:08,457 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:09,197 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:09,651 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:10,105 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:10,220 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:10,974 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:11,434 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:11,880 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:12,001 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:12,744 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:13,197 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:13,655 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:13,774 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:14,528 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:14,984 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:15,449 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:15,569 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:16,310 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:16,777 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:17,254 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:17,375 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:18,133 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:18,612 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:19,086 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:19,237 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:19,980 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:20,451 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:20,903 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:21,022 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:21,810 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:22,277 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:22,741 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:22,854 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:23,632 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:24,097 WARN L191 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:24,556 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1094 [2019-10-07 14:28:24,669 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:25,424 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:26,204 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:26,964 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:27,098 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:27,845 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:29,238 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:28:30,021 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:30,150 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:30,916 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:31,686 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:32,489 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:32,612 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:33,367 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:34,219 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:28:34,988 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:28:35,120 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:28:35,895 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:28:37,410 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:28:38,179 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:28:38,306 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:28:39,070 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:28:39,823 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:28:40,591 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:28:40,711 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:28:41,502 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:28:42,572 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:28:43,339 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:28:43,457 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:28:44,217 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:28:45,007 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:45,793 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:45,918 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:28:46,707 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:47,491 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:48,283 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:48,405 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:28:49,162 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:49,951 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:50,721 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:50,990 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:28:51,775 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:52,539 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:53,319 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:53,433 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:28:54,200 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:28:55,599 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:28:56,341 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:56,480 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:28:57,220 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:58,600 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:28:59,362 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:28:59,495 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:00,236 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:00,989 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:01,735 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:01,852 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:02,606 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:03,931 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:29:04,682 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:04,804 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:05,579 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:06,342 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:07,127 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:07,250 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:08,013 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:09,291 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:29:10,050 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:10,164 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:10,933 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:12,346 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1265 [2019-10-07 14:29:13,121 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:29:13,247 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:14,007 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:29:15,404 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1267 [2019-10-07 14:29:16,194 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:29:16,315 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:17,094 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:29:18,471 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:29:19,246 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:19,365 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:20,120 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:21,487 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:29:22,232 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:22,351 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:23,109 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:23,850 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:24,617 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:24,731 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:25,477 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:26,882 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:29:27,616 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:27,738 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:28,473 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:29,826 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:29:30,586 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:30,704 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:31,467 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:32,210 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:32,960 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:33,072 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:33,848 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:35,191 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:29:35,954 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:36,074 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:36,818 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:37,597 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:38,356 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:38,499 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:39,279 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:40,547 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:29:41,327 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:41,439 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:42,217 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:43,478 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1258 [2019-10-07 14:29:44,251 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:29:44,374 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:45,156 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:46,414 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1260 [2019-10-07 14:29:47,187 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:47,313 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:48,091 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:29:49,667 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1260 [2019-10-07 14:29:50,418 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:50,537 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:51,279 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:29:52,567 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:29:53,304 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:29:53,425 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:29:54,179 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:29:55,515 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:29:56,268 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:56,387 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:29:57,148 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:58,543 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:29:59,305 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:29:59,428 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:00,222 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:01,774 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:02,606 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:02,755 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:03,553 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:04,952 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:05,716 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:05,836 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:06,612 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:07,377 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:08,173 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:08,289 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:09,056 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:09,891 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:10,684 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:10,805 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:11,579 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:12,339 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:13,099 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:13,224 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:13,969 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:14,738 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:15,525 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:15,640 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:16,411 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:17,812 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:30:18,590 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:18,716 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:19,474 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:20,740 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:30:21,520 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:30:21,647 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:22,408 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:30:23,840 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:24,609 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:24,728 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:25,497 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:26,876 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:27,634 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:27,753 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:28,495 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:29,252 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:30,017 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:30,137 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:30,916 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:31,733 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:32,509 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:32,641 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:33,431 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:34,714 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:30:35,502 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:30:35,622 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:36,416 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:37,816 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:38,573 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:38,699 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:39,451 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:40,839 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:30:41,578 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:41,711 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:42,475 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:43,215 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:43,978 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:44,096 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:44,832 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:46,182 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:30:46,943 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:30:47,072 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:47,834 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:48,643 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:49,405 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:49,530 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:50,329 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:51,619 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:30:52,396 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:30:52,511 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:53,292 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:54,599 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:30:55,376 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:55,500 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 444 [2019-10-07 14:30:56,313 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:30:56,320 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1118 for LOIs [2019-10-07 14:30:56,813 WARN L191 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:30:57,327 WARN L191 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 1118 [2019-10-07 14:30:57,447 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:58,239 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:30:58,253 INFO L199 IcfgInterpreter]: Interpreting procedure test with input of size 1068 for LOIs [2019-10-07 14:30:58,680 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1068 [2019-10-07 14:30:59,089 WARN L191 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 1068 [2019-10-07 14:30:59,209 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 441 [2019-10-07 14:30:59,988 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:31:00,255 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:31:00,258 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: ε 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: ε 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.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 14:31:00,263 INFO L168 Benchmark]: Toolchain (without parser) took 283227.97 ms. Allocated memory was 143.7 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 98.5 MB in the beginning and 2.4 GB in the end (delta: -2.3 GB). Peak memory consumption was 239.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:31:00,264 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 14:31:00,264 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1131.29 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.3 MB in the beginning and 138.7 MB in the end (delta: -40.4 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:31:00,264 INFO L168 Benchmark]: Boogie Preprocessor took 214.59 ms. Allocated memory is still 201.3 MB. Free memory was 138.7 MB in the beginning and 129.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:31:00,265 INFO L168 Benchmark]: RCFGBuilder took 5513.85 ms. Allocated memory was 201.3 MB in the beginning and 305.1 MB in the end (delta: 103.8 MB). Free memory was 129.2 MB in the beginning and 232.1 MB in the end (delta: -102.8 MB). Peak memory consumption was 163.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:31:00,265 INFO L168 Benchmark]: TraceAbstraction took 276360.56 ms. Allocated memory was 305.1 MB in the beginning and 2.7 GB in the end (delta: 2.3 GB). Free memory was 232.1 MB in the beginning and 2.4 GB in the end (delta: -2.1 GB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:31:00,267 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 143.7 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1131.29 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.3 MB in the beginning and 138.7 MB in the end (delta: -40.4 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 214.59 ms. Allocated memory is still 201.3 MB. Free memory was 138.7 MB in the beginning and 129.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5513.85 ms. Allocated memory was 201.3 MB in the beginning and 305.1 MB in the end (delta: 103.8 MB). Free memory was 129.2 MB in the beginning and 232.1 MB in the end (delta: -102.8 MB). Peak memory consumption was 163.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 276360.56 ms. Allocated memory was 305.1 MB in the beginning and 2.7 GB in the end (delta: 2.3 GB). Free memory was 232.1 MB in the beginning and 2.4 GB in the end (delta: -2.1 GB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: ε: 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...