java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:42:54,621 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:42:54,624 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:42:54,640 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:42:54,640 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:42:54,641 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:42:54,642 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:42:54,644 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:42:54,646 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:42:54,647 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:42:54,648 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:42:54,648 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:42:54,649 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:42:54,650 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:42:54,654 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:42:54,655 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:42:54,656 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:42:54,661 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:42:54,665 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:42:54,666 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:42:54,670 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:42:54,672 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:42:54,679 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 11:42:54,687 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:42:54,687 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:42:54,690 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:42:54,691 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:42:54,691 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:42:54,720 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:42:54,720 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:42:54,721 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:42:54,721 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:42:54,721 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:42:54,721 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:42:54,722 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:42:54,722 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:42:54,722 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:42:54,722 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:42:54,722 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:42:54,723 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:42:54,723 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:42:54,723 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:42:54,724 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:42:54,724 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:42:54,724 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:42:54,724 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:42:54,724 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:42:54,724 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:42:54,725 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:42:54,725 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:42:54,725 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:42:54,725 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:42:54,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:42:54,726 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:42:54,726 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:42:54,726 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:42:54,726 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:42:54,726 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:42:54,727 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:42:54,727 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:42:54,727 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:42:54,727 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:42:54,770 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:42:54,785 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:42:54,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:42:54,793 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:42:54,794 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:42:54,795 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c [2018-09-18 11:42:55,174 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24cf2157/ee5c5380f9c54ffab2ee8839477a28ca/FLAG8f8003b48 [2018-09-18 11:42:55,684 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:42:55,685 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c [2018-09-18 11:42:55,725 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24cf2157/ee5c5380f9c54ffab2ee8839477a28ca/FLAG8f8003b48 [2018-09-18 11:42:55,750 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c24cf2157/ee5c5380f9c54ffab2ee8839477a28ca [2018-09-18 11:42:55,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:42:55,768 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:42:55,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:42:55,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:42:55,779 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:42:55,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:42:55" (1/1) ... [2018-09-18 11:42:55,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ecc5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:55, skipping insertion in model container [2018-09-18 11:42:55,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:42:55" (1/1) ... [2018-09-18 11:42:55,797 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:42:57,243 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:42:57,263 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:42:58,002 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:42:58,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58 WrapperNode [2018-09-18 11:42:58,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:42:58,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:42:58,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:42:58,383 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:42:58,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (1/1) ... [2018-09-18 11:42:58,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (1/1) ... [2018-09-18 11:42:58,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:42:58,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:42:58,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:42:58,733 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:42:59,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (1/1) ... [2018-09-18 11:42:59,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (1/1) ... [2018-09-18 11:42:59,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (1/1) ... [2018-09-18 11:42:59,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (1/1) ... [2018-09-18 11:42:59,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (1/1) ... [2018-09-18 11:42:59,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (1/1) ... [2018-09-18 11:42:59,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (1/1) ... [2018-09-18 11:42:59,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:42:59,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:42:59,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:42:59,950 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:42:59,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (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 [2018-09-18 11:43:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:43:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:43:00,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 11:43:00,028 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 11:43:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 11:43:00,029 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 11:43:00,029 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:43:00,029 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:43:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:43:00,030 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:43:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:43:00,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:43:00,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:43:00,030 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:43:10,930 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:43:10,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:43:10 BoogieIcfgContainer [2018-09-18 11:43:10,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:43:10,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:43:10,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:43:10,936 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:43:10,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:42:55" (1/3) ... [2018-09-18 11:43:10,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389fff52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:43:10, skipping insertion in model container [2018-09-18 11:43:10,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:42:58" (2/3) ... [2018-09-18 11:43:10,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@389fff52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:43:10, skipping insertion in model container [2018-09-18 11:43:10,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:43:10" (3/3) ... [2018-09-18 11:43:10,939 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label41_true-unreach-call.c [2018-09-18 11:43:10,948 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:43:10,958 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:43:11,022 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:43:11,023 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:43:11,023 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:43:11,024 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:43:11,024 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:43:11,024 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:43:11,024 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:43:11,024 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:43:11,024 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:43:11,082 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-18 11:43:11,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-18 11:43:11,094 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:43:11,095 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:43:11,096 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:43:11,101 INFO L82 PathProgramCache]: Analyzing trace with hash -501349661, now seen corresponding path program 1 times [2018-09-18 11:43:11,104 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:43:11,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:11,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:11,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:11,152 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:43:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:11,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:43:11,596 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:43:11,597 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:43:11,597 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:43:11,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:43:11,621 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:43:11,622 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:43:11,625 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-09-18 11:43:26,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:43:26,643 INFO L93 Difference]: Finished difference Result 4063 states and 7611 transitions. [2018-09-18 11:43:26,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:43:26,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2018-09-18 11:43:26,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:43:26,708 INFO L225 Difference]: With dead ends: 4063 [2018-09-18 11:43:26,708 INFO L226 Difference]: Without dead ends: 2937 [2018-09-18 11:43:26,724 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:43:26,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2018-09-18 11:43:26,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 1982. [2018-09-18 11:43:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2018-09-18 11:43:26,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 3456 transitions. [2018-09-18 11:43:26,935 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 3456 transitions. Word has length 51 [2018-09-18 11:43:26,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:43:26,936 INFO L480 AbstractCegarLoop]: Abstraction has 1982 states and 3456 transitions. [2018-09-18 11:43:26,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:43:26,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 3456 transitions. [2018-09-18 11:43:26,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-09-18 11:43:26,943 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:43:26,944 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:43:26,944 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:43:26,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1322678209, now seen corresponding path program 1 times [2018-09-18 11:43:26,945 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:43:26,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:26,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:26,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:26,946 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:43:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:43:27,369 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:43:27,370 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:43:27,370 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:43:27,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:43:27,372 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:43:27,372 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:43:27,373 INFO L87 Difference]: Start difference. First operand 1982 states and 3456 transitions. Second operand 6 states. [2018-09-18 11:43:44,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:43:44,079 INFO L93 Difference]: Finished difference Result 7277 states and 13063 transitions. [2018-09-18 11:43:44,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:43:44,080 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-09-18 11:43:44,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:43:44,122 INFO L225 Difference]: With dead ends: 7277 [2018-09-18 11:43:44,122 INFO L226 Difference]: Without dead ends: 5301 [2018-09-18 11:43:44,134 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:43:44,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2018-09-18 11:43:44,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5252. [2018-09-18 11:43:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5252 states. [2018-09-18 11:43:44,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 8253 transitions. [2018-09-18 11:43:44,285 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 8253 transitions. Word has length 122 [2018-09-18 11:43:44,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:43:44,285 INFO L480 AbstractCegarLoop]: Abstraction has 5252 states and 8253 transitions. [2018-09-18 11:43:44,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:43:44,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 8253 transitions. [2018-09-18 11:43:44,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-09-18 11:43:44,290 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:43:44,290 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:43:44,290 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:43:44,291 INFO L82 PathProgramCache]: Analyzing trace with hash 497570766, now seen corresponding path program 1 times [2018-09-18 11:43:44,291 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:43:44,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:44,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:44,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:44,292 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:43:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:43:44,557 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:43:44,557 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:43:44,558 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:43:44,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:43:44,558 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:43:44,559 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:43:44,559 INFO L87 Difference]: Start difference. First operand 5252 states and 8253 transitions. Second operand 6 states. [2018-09-18 11:43:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:43:57,603 INFO L93 Difference]: Finished difference Result 13914 states and 22498 transitions. [2018-09-18 11:43:57,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:43:57,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-09-18 11:43:57,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:43:57,645 INFO L225 Difference]: With dead ends: 13914 [2018-09-18 11:43:57,645 INFO L226 Difference]: Without dead ends: 8668 [2018-09-18 11:43:57,665 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:43:57,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8668 states. [2018-09-18 11:43:57,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8668 to 8605. [2018-09-18 11:43:57,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8605 states. [2018-09-18 11:43:57,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8605 states to 8605 states and 12803 transitions. [2018-09-18 11:43:57,907 INFO L78 Accepts]: Start accepts. Automaton has 8605 states and 12803 transitions. Word has length 125 [2018-09-18 11:43:57,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:43:57,908 INFO L480 AbstractCegarLoop]: Abstraction has 8605 states and 12803 transitions. [2018-09-18 11:43:57,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:43:57,908 INFO L276 IsEmpty]: Start isEmpty. Operand 8605 states and 12803 transitions. [2018-09-18 11:43:57,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-09-18 11:43:57,912 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:43:57,913 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:43:57,913 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:43:57,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1108741538, now seen corresponding path program 1 times [2018-09-18 11:43:57,917 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:43:57,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:57,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:43:57,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:43:57,919 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:43:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:43:58,269 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:43:58,269 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:43:58,269 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:43:58,269 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:43:58,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:43:58,270 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:43:58,271 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:43:58,271 INFO L87 Difference]: Start difference. First operand 8605 states and 12803 transitions. Second operand 5 states. [2018-09-18 11:44:19,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:44:19,440 INFO L93 Difference]: Finished difference Result 25983 states and 40339 transitions. [2018-09-18 11:44:19,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:44:19,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2018-09-18 11:44:19,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:44:19,512 INFO L225 Difference]: With dead ends: 25983 [2018-09-18 11:44:19,512 INFO L226 Difference]: Without dead ends: 17384 [2018-09-18 11:44:19,536 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:44:19,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17384 states. [2018-09-18 11:44:19,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17384 to 17119. [2018-09-18 11:44:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17119 states. [2018-09-18 11:44:19,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17119 states to 17119 states and 24326 transitions. [2018-09-18 11:44:19,975 INFO L78 Accepts]: Start accepts. Automaton has 17119 states and 24326 transitions. Word has length 135 [2018-09-18 11:44:19,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:44:19,976 INFO L480 AbstractCegarLoop]: Abstraction has 17119 states and 24326 transitions. [2018-09-18 11:44:19,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:44:19,976 INFO L276 IsEmpty]: Start isEmpty. Operand 17119 states and 24326 transitions. [2018-09-18 11:44:19,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-09-18 11:44:19,979 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:44:19,979 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:44:19,980 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:44:19,980 INFO L82 PathProgramCache]: Analyzing trace with hash -645200432, now seen corresponding path program 1 times [2018-09-18 11:44:19,980 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:44:19,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:19,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:19,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:19,982 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:44:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:20,251 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:44:20,660 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 27 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:44:20,661 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:44:20,661 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:44:20,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:20,672 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:44:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:20,752 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:44:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-18 11:44:20,950 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:44:21,656 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-18 11:44:21,678 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:44:21,678 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2018-09-18 11:44:21,678 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:44:21,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:44:21,679 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:44:21,679 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:44:21,679 INFO L87 Difference]: Start difference. First operand 17119 states and 24326 transitions. Second operand 4 states. [2018-09-18 11:44:29,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:44:29,935 INFO L93 Difference]: Finished difference Result 48039 states and 71827 transitions. [2018-09-18 11:44:29,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:44:29,936 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2018-09-18 11:44:29,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:44:30,119 INFO L225 Difference]: With dead ends: 48039 [2018-09-18 11:44:30,119 INFO L226 Difference]: Without dead ends: 30926 [2018-09-18 11:44:30,204 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 299 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:44:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30926 states. [2018-09-18 11:44:31,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30926 to 30897. [2018-09-18 11:44:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30897 states. [2018-09-18 11:44:31,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30897 states to 30897 states and 43889 transitions. [2018-09-18 11:44:31,221 INFO L78 Accepts]: Start accepts. Automaton has 30897 states and 43889 transitions. Word has length 152 [2018-09-18 11:44:31,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:44:31,222 INFO L480 AbstractCegarLoop]: Abstraction has 30897 states and 43889 transitions. [2018-09-18 11:44:31,222 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:44:31,222 INFO L276 IsEmpty]: Start isEmpty. Operand 30897 states and 43889 transitions. [2018-09-18 11:44:31,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-09-18 11:44:31,227 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:44:31,227 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:44:31,228 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:44:31,228 INFO L82 PathProgramCache]: Analyzing trace with hash -41100533, now seen corresponding path program 1 times [2018-09-18 11:44:31,228 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:44:31,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:31,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:31,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:31,229 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:44:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:31,802 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:44:31,803 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:44:31,803 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:44:31,803 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:44:31,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:44:31,804 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:44:31,804 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:44:31,805 INFO L87 Difference]: Start difference. First operand 30897 states and 43889 transitions. Second operand 6 states. [2018-09-18 11:44:51,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:44:51,706 INFO L93 Difference]: Finished difference Result 101633 states and 156814 transitions. [2018-09-18 11:44:51,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:44:51,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 193 [2018-09-18 11:44:51,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:44:52,031 INFO L225 Difference]: With dead ends: 101633 [2018-09-18 11:44:52,031 INFO L226 Difference]: Without dead ends: 70742 [2018-09-18 11:44:52,137 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:44:52,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70742 states. [2018-09-18 11:44:53,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70742 to 70640. [2018-09-18 11:44:53,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70640 states. [2018-09-18 11:44:53,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70640 states to 70640 states and 102325 transitions. [2018-09-18 11:44:53,750 INFO L78 Accepts]: Start accepts. Automaton has 70640 states and 102325 transitions. Word has length 193 [2018-09-18 11:44:53,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:44:53,752 INFO L480 AbstractCegarLoop]: Abstraction has 70640 states and 102325 transitions. [2018-09-18 11:44:53,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:44:53,754 INFO L276 IsEmpty]: Start isEmpty. Operand 70640 states and 102325 transitions. [2018-09-18 11:44:53,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-09-18 11:44:53,764 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:44:53,765 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:44:53,765 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:44:53,765 INFO L82 PathProgramCache]: Analyzing trace with hash 230357605, now seen corresponding path program 1 times [2018-09-18 11:44:53,765 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:44:53,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:53,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:44:53,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:44:53,767 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:44:53,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:44:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:44:54,006 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:44:54,006 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:44:54,006 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:44:54,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:44:54,007 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:44:54,007 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:44:54,007 INFO L87 Difference]: Start difference. First operand 70640 states and 102325 transitions. Second operand 4 states. [2018-09-18 11:45:07,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:07,822 INFO L93 Difference]: Finished difference Result 157133 states and 238014 transitions. [2018-09-18 11:45:07,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:45:07,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 253 [2018-09-18 11:45:07,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:08,125 INFO L225 Difference]: With dead ends: 157133 [2018-09-18 11:45:08,125 INFO L226 Difference]: Without dead ends: 86499 [2018-09-18 11:45:08,344 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:45:08,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86499 states. [2018-09-18 11:45:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86499 to 86445. [2018-09-18 11:45:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86445 states. [2018-09-18 11:45:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86445 states to 86445 states and 120668 transitions. [2018-09-18 11:45:10,612 INFO L78 Accepts]: Start accepts. Automaton has 86445 states and 120668 transitions. Word has length 253 [2018-09-18 11:45:10,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:10,612 INFO L480 AbstractCegarLoop]: Abstraction has 86445 states and 120668 transitions. [2018-09-18 11:45:10,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:45:10,613 INFO L276 IsEmpty]: Start isEmpty. Operand 86445 states and 120668 transitions. [2018-09-18 11:45:10,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-09-18 11:45:10,630 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:10,630 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:10,631 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:10,631 INFO L82 PathProgramCache]: Analyzing trace with hash -970783463, now seen corresponding path program 1 times [2018-09-18 11:45:10,631 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:10,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:10,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:10,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:10,632 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:11,153 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:11,153 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:45:11,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:11,161 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:11,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:11,385 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:11,541 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:11,562 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:11,562 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:45:11,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:11,578 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:11,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:11,774 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-18 11:45:11,869 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:12,381 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-18 11:45:12,383 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-18 11:45:12,383 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 16 [2018-09-18 11:45:12,384 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:12,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:45:12,384 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:45:12,384 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:45:12,385 INFO L87 Difference]: Start difference. First operand 86445 states and 120668 transitions. Second operand 5 states. [2018-09-18 11:45:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:22,290 INFO L93 Difference]: Finished difference Result 165745 states and 240551 transitions. [2018-09-18 11:45:22,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:45:22,290 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2018-09-18 11:45:22,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:22,592 INFO L225 Difference]: With dead ends: 165745 [2018-09-18 11:45:22,592 INFO L226 Difference]: Without dead ends: 94611 [2018-09-18 11:45:22,745 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1121 GetRequests, 1105 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-09-18 11:45:22,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94611 states. [2018-09-18 11:45:24,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94611 to 94603. [2018-09-18 11:45:24,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94603 states. [2018-09-18 11:45:25,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94603 states to 94603 states and 131959 transitions. [2018-09-18 11:45:25,137 INFO L78 Accepts]: Start accepts. Automaton has 94603 states and 131959 transitions. Word has length 279 [2018-09-18 11:45:25,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:25,138 INFO L480 AbstractCegarLoop]: Abstraction has 94603 states and 131959 transitions. [2018-09-18 11:45:25,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:45:25,138 INFO L276 IsEmpty]: Start isEmpty. Operand 94603 states and 131959 transitions. [2018-09-18 11:45:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-09-18 11:45:25,156 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:25,156 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:25,156 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:25,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1603451946, now seen corresponding path program 1 times [2018-09-18 11:45:25,157 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:25,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:25,158 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:25,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:25,158 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 89 proven. 26 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-18 11:45:25,519 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:25,519 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:45:25,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:25,529 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:25,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:25,622 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:25,843 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:25,844 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:25,995 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 180 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:45:26,016 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:26,017 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:45:26,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:26,036 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:26,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:45:26,791 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:27,122 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 11:45:27,124 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-18 11:45:27,125 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 5, 5] total 13 [2018-09-18 11:45:27,125 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:45:27,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:45:27,126 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:45:27,126 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:45:27,126 INFO L87 Difference]: Start difference. First operand 94603 states and 131959 transitions. Second operand 5 states. [2018-09-18 11:45:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:45:38,033 INFO L93 Difference]: Finished difference Result 244593 states and 371729 transitions. [2018-09-18 11:45:38,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:45:38,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 283 [2018-09-18 11:45:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:45:38,589 INFO L225 Difference]: With dead ends: 244593 [2018-09-18 11:45:38,589 INFO L226 Difference]: Without dead ends: 150801 [2018-09-18 11:45:38,810 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1140 GetRequests, 1119 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-09-18 11:45:38,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150801 states. [2018-09-18 11:45:41,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150801 to 150332. [2018-09-18 11:45:41,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150332 states. [2018-09-18 11:45:42,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150332 states to 150332 states and 202809 transitions. [2018-09-18 11:45:42,308 INFO L78 Accepts]: Start accepts. Automaton has 150332 states and 202809 transitions. Word has length 283 [2018-09-18 11:45:42,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:45:42,309 INFO L480 AbstractCegarLoop]: Abstraction has 150332 states and 202809 transitions. [2018-09-18 11:45:42,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:45:42,309 INFO L276 IsEmpty]: Start isEmpty. Operand 150332 states and 202809 transitions. [2018-09-18 11:45:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-09-18 11:45:42,353 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:45:42,353 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:45:42,354 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:45:42,354 INFO L82 PathProgramCache]: Analyzing trace with hash -474231233, now seen corresponding path program 1 times [2018-09-18 11:45:42,354 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:45:42,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:42,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:42,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:45:42,355 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:45:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:42,689 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 236 proven. 86 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-09-18 11:45:42,689 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:42,689 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:45:42,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:42,697 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:42,808 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-09-18 11:45:42,957 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 142 proven. 260 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:45:44,319 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:45:44,319 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:45:44,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:45:44,336 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:45:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:45:44,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:45:44,867 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 307 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-18 11:45:44,868 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:45:45,043 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 307 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-18 11:45:45,046 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:45:45,047 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 5, 5] total 22 [2018-09-18 11:45:45,047 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:45:45,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-18 11:45:45,049 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-18 11:45:45,050 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=387, Unknown=0, NotChecked=0, Total=462 [2018-09-18 11:45:45,050 INFO L87 Difference]: Start difference. First operand 150332 states and 202809 transitions. Second operand 11 states. [2018-09-18 11:46:39,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:46:39,622 INFO L93 Difference]: Finished difference Result 477519 states and 672706 transitions. [2018-09-18 11:46:39,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-09-18 11:46:39,623 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 355 [2018-09-18 11:46:39,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:46:40,930 INFO L225 Difference]: With dead ends: 477519 [2018-09-18 11:46:40,931 INFO L226 Difference]: Without dead ends: 308528 [2018-09-18 11:46:41,970 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1524 GetRequests, 1454 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1361 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=819, Invalid=4293, Unknown=0, NotChecked=0, Total=5112 [2018-09-18 11:46:42,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308528 states. [2018-09-18 11:46:46,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308528 to 304722. [2018-09-18 11:46:46,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304722 states. Received shutdown request... [2018-09-18 11:46:57,774 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:46:57,780 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:46:57,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:46:57 BoogieIcfgContainer [2018-09-18 11:46:57,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:46:57,781 INFO L168 Benchmark]: Toolchain (without parser) took 242017.94 ms. Allocated memory was 1.5 GB in the beginning and 5.4 GB in the end (delta: 3.9 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2018-09-18 11:46:57,782 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:46:57,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2612.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:46:57,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 349.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:46:57,784 INFO L168 Benchmark]: Boogie Preprocessor took 1216.91 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 184.9 MB. Max. memory is 7.1 GB. [2018-09-18 11:46:57,786 INFO L168 Benchmark]: RCFGBuilder took 10981.78 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 157.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -164.1 kB). Peak memory consumption was 744.7 MB. Max. memory is 7.1 GB. [2018-09-18 11:46:57,787 INFO L168 Benchmark]: TraceAbstraction took 226847.87 ms. Allocated memory was 2.7 GB in the beginning and 5.4 GB in the end (delta: 2.7 GB). Free memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-09-18 11:46:57,795 INFO L336 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 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2612.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 349.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1216.91 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 184.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10981.78 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 157.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -164.1 kB). Peak memory consumption was 744.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226847.87 ms. Allocated memory was 2.7 GB in the beginning and 5.4 GB in the end (delta: 2.7 GB). Free memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 144]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 144). Cancelled while ReachableStatesComputation was computing reachable states (256810 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data