java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 21:06:04,705 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 21:06:04,709 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 21:06:04,722 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 21:06:04,722 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 21:06:04,723 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 21:06:04,725 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 21:06:04,726 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 21:06:04,728 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 21:06:04,729 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 21:06:04,730 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 21:06:04,730 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 21:06:04,731 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 21:06:04,732 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 21:06:04,736 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 21:06:04,736 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 21:06:04,737 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 21:06:04,739 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 21:06:04,743 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 21:06:04,745 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 21:06:04,746 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 21:06:04,747 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 21:06:04,749 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 21:06:04,755 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 21:06:04,755 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 21:06:04,756 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 21:06:04,757 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 21:06:04,757 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 21:06:04,782 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 21:06:04,783 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 21:06:04,784 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 21:06:04,784 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 21:06:04,784 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 21:06:04,786 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 21:06:04,786 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 21:06:04,786 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 21:06:04,786 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 21:06:04,787 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 21:06:04,787 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 21:06:04,787 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 21:06:04,787 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 21:06:04,787 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 21:06:04,788 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 21:06:04,789 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 21:06:04,789 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 21:06:04,789 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 21:06:04,789 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 21:06:04,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 21:06:04,791 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 21:06:04,791 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 21:06:04,792 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 21:06:04,792 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 21:06:04,792 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 21:06:04,792 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 21:06:04,792 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 21:06:04,792 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 21:06:04,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 21:06:04,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 21:06:04,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 21:06:04,879 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 21:06:04,880 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 21:06:04,881 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label49_true-unreach-call.c [2018-10-23 21:06:04,939 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dcefb9b58/114e809b19564a4e8b2cfb81d125da2b/FLAG7e8662238 [2018-10-23 21:06:05,872 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 21:06:05,873 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label49_true-unreach-call.c [2018-10-23 21:06:05,922 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dcefb9b58/114e809b19564a4e8b2cfb81d125da2b/FLAG7e8662238 [2018-10-23 21:06:05,938 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dcefb9b58/114e809b19564a4e8b2cfb81d125da2b [2018-10-23 21:06:05,950 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 21:06:05,952 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 21:06:05,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 21:06:05,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 21:06:05,957 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 21:06:05,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:06:05" (1/1) ... [2018-10-23 21:06:05,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7897d110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:05, skipping insertion in model container [2018-10-23 21:06:05,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:06:05" (1/1) ... [2018-10-23 21:06:05,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 21:06:06,213 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 21:06:08,165 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:06:08,170 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 21:06:09,303 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 21:06:09,354 INFO L193 MainTranslator]: Completed translation [2018-10-23 21:06:09,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09 WrapperNode [2018-10-23 21:06:09,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 21:06:09,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 21:06:09,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 21:06:09,356 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 21:06:09,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... [2018-10-23 21:06:09,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... [2018-10-23 21:06:10,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 21:06:10,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 21:06:10,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 21:06:10,475 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 21:06:10,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... [2018-10-23 21:06:10,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... [2018-10-23 21:06:10,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... [2018-10-23 21:06:10,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... [2018-10-23 21:06:10,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... [2018-10-23 21:06:10,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... [2018-10-23 21:06:11,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... [2018-10-23 21:06:11,227 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 21:06:11,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 21:06:11,228 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 21:06:11,228 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 21:06:11,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 21:06:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 21:06:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 21:06:11,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 21:06:29,340 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 21:06:29,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:06:29 BoogieIcfgContainer [2018-10-23 21:06:29,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 21:06:29,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 21:06:29,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 21:06:29,346 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 21:06:29,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:06:05" (1/3) ... [2018-10-23 21:06:29,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fdffec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:06:29, skipping insertion in model container [2018-10-23 21:06:29,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:06:09" (2/3) ... [2018-10-23 21:06:29,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52fdffec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:06:29, skipping insertion in model container [2018-10-23 21:06:29,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:06:29" (3/3) ... [2018-10-23 21:06:29,351 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label49_true-unreach-call.c [2018-10-23 21:06:29,361 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 21:06:29,373 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 21:06:29,391 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 21:06:29,440 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 21:06:29,440 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 21:06:29,440 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 21:06:29,440 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 21:06:29,441 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 21:06:29,441 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 21:06:29,441 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 21:06:29,441 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 21:06:29,441 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 21:06:29,786 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 21:06:29,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-23 21:06:29,794 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:06:29,796 INFO L375 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] [2018-10-23 21:06:29,798 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:06:29,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:06:29,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1586436998, now seen corresponding path program 1 times [2018-10-23 21:06:29,809 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:06:29,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:06:29,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:29,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:06:29,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:06:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:06:30,285 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 21:06:30,745 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-23 21:06:30,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:06:30,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:06:30,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 21:06:30,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 21:06:30,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 21:06:30,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:06:30,934 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 6 states. [2018-10-23 21:06:31,125 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-23 21:07:18,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:07:18,047 INFO L93 Difference]: Finished difference Result 9078 states and 17600 transitions. [2018-10-23 21:07:18,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 21:07:18,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2018-10-23 21:07:18,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:07:18,121 INFO L225 Difference]: With dead ends: 9078 [2018-10-23 21:07:18,121 INFO L226 Difference]: Without dead ends: 7316 [2018-10-23 21:07:18,134 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-23 21:07:18,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7316 states. [2018-10-23 21:07:18,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7316 to 5899. [2018-10-23 21:07:18,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5899 states. [2018-10-23 21:07:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5899 states to 5899 states and 8691 transitions. [2018-10-23 21:07:18,393 INFO L78 Accepts]: Start accepts. Automaton has 5899 states and 8691 transitions. Word has length 43 [2018-10-23 21:07:18,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:07:18,394 INFO L481 AbstractCegarLoop]: Abstraction has 5899 states and 8691 transitions. [2018-10-23 21:07:18,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 21:07:18,394 INFO L276 IsEmpty]: Start isEmpty. Operand 5899 states and 8691 transitions. [2018-10-23 21:07:18,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-10-23 21:07:18,410 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:07:18,410 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:07:18,411 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:07:18,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:07:18,412 INFO L82 PathProgramCache]: Analyzing trace with hash -752812192, now seen corresponding path program 1 times [2018-10-23 21:07:18,412 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:07:18,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:07:18,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:18,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:07:18,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:07:19,164 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2018-10-23 21:07:19,164 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:07:19,164 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 21:07:19,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:07:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:07:19,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:07:19,480 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:07:19,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:07:19,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 21:07:19,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:07:19,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:07:19,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:07:19,519 INFO L87 Difference]: Start difference. First operand 5899 states and 8691 transitions. Second operand 5 states. [2018-10-23 21:07:52,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:07:52,562 INFO L93 Difference]: Finished difference Result 22884 states and 36399 transitions. [2018-10-23 21:07:52,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 21:07:52,563 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2018-10-23 21:07:52,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:07:52,639 INFO L225 Difference]: With dead ends: 22884 [2018-10-23 21:07:52,639 INFO L226 Difference]: Without dead ends: 16987 [2018-10-23 21:07:52,650 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:07:52,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16987 states. [2018-10-23 21:07:52,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16987 to 11423. [2018-10-23 21:07:52,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11423 states. [2018-10-23 21:07:52,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11423 states to 11423 states and 16439 transitions. [2018-10-23 21:07:52,920 INFO L78 Accepts]: Start accepts. Automaton has 11423 states and 16439 transitions. Word has length 279 [2018-10-23 21:07:52,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:07:52,921 INFO L481 AbstractCegarLoop]: Abstraction has 11423 states and 16439 transitions. [2018-10-23 21:07:52,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:07:52,921 INFO L276 IsEmpty]: Start isEmpty. Operand 11423 states and 16439 transitions. [2018-10-23 21:07:52,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-10-23 21:07:52,928 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:07:52,929 INFO L375 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:07:52,929 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:07:52,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:07:52,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1244154395, now seen corresponding path program 1 times [2018-10-23 21:07:52,930 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:07:52,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:07:52,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:52,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:07:52,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:07:52,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:07:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 81 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:07:53,539 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:07:53,539 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 21:07:53,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:07:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:07:53,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:07:53,803 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:07:53,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:07:53,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 21:07:53,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:07:53,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:07:53,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:07:53,826 INFO L87 Difference]: Start difference. First operand 11423 states and 16439 transitions. Second operand 5 states. [2018-10-23 21:08:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:08:29,852 INFO L93 Difference]: Finished difference Result 46433 states and 67120 transitions. [2018-10-23 21:08:29,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:08:29,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 347 [2018-10-23 21:08:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:08:29,922 INFO L225 Difference]: With dead ends: 46433 [2018-10-23 21:08:29,922 INFO L226 Difference]: Without dead ends: 29546 [2018-10-23 21:08:29,944 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 21:08:29,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29546 states. [2018-10-23 21:08:30,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29546 to 29463. [2018-10-23 21:08:30,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29463 states. [2018-10-23 21:08:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29463 states to 29463 states and 36254 transitions. [2018-10-23 21:08:30,367 INFO L78 Accepts]: Start accepts. Automaton has 29463 states and 36254 transitions. Word has length 347 [2018-10-23 21:08:30,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:08:30,368 INFO L481 AbstractCegarLoop]: Abstraction has 29463 states and 36254 transitions. [2018-10-23 21:08:30,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:08:30,369 INFO L276 IsEmpty]: Start isEmpty. Operand 29463 states and 36254 transitions. [2018-10-23 21:08:30,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2018-10-23 21:08:30,375 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:08:30,375 INFO L375 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:08:30,375 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:08:30,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:08:30,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1128196187, now seen corresponding path program 1 times [2018-10-23 21:08:30,376 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:08:30,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:08:30,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:30,377 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:30,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:30,922 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 81 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-23 21:08:30,923 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:08:30,923 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:08:30,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:31,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:08:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:08:31,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:08:31,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-23 21:08:31,163 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:08:31,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:08:31,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:08:31,165 INFO L87 Difference]: Start difference. First operand 29463 states and 36254 transitions. Second operand 4 states. [2018-10-23 21:08:56,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:08:56,037 INFO L93 Difference]: Finished difference Result 109776 states and 135570 transitions. [2018-10-23 21:08:56,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:08:56,039 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 349 [2018-10-23 21:08:56,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:08:56,176 INFO L225 Difference]: With dead ends: 109776 [2018-10-23 21:08:56,177 INFO L226 Difference]: Without dead ends: 80315 [2018-10-23 21:08:56,226 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:08:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80315 states. [2018-10-23 21:08:56,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80315 to 52684. [2018-10-23 21:08:56,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52684 states. [2018-10-23 21:08:57,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52684 states to 52684 states and 63622 transitions. [2018-10-23 21:08:57,013 INFO L78 Accepts]: Start accepts. Automaton has 52684 states and 63622 transitions. Word has length 349 [2018-10-23 21:08:57,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:08:57,014 INFO L481 AbstractCegarLoop]: Abstraction has 52684 states and 63622 transitions. [2018-10-23 21:08:57,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:08:57,014 INFO L276 IsEmpty]: Start isEmpty. Operand 52684 states and 63622 transitions. [2018-10-23 21:08:57,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2018-10-23 21:08:57,035 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:08:57,036 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:08:57,036 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:08:57,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:08:57,037 INFO L82 PathProgramCache]: Analyzing trace with hash 629702866, now seen corresponding path program 1 times [2018-10-23 21:08:57,037 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:08:57,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:08:57,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:57,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:57,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:08:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 565 proven. 4 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-10-23 21:08:58,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:08:58,796 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-23 21:08:58,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:08:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:08:58,987 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:08:59,515 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 569 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-10-23 21:08:59,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:08:59,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 21:08:59,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:08:59,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:08:59,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:08:59,558 INFO L87 Difference]: Start difference. First operand 52684 states and 63622 transitions. Second operand 5 states. [2018-10-23 21:09:22,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:09:22,766 INFO L93 Difference]: Finished difference Result 116297 states and 138536 transitions. [2018-10-23 21:09:22,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 21:09:22,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 730 [2018-10-23 21:09:22,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:09:22,855 INFO L225 Difference]: With dead ends: 116297 [2018-10-23 21:09:22,855 INFO L226 Difference]: Without dead ends: 59514 [2018-10-23 21:09:22,908 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 730 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:09:22,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59514 states. [2018-10-23 21:09:23,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59514 to 58146. [2018-10-23 21:09:23,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58146 states. [2018-10-23 21:09:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58146 states to 58146 states and 65037 transitions. [2018-10-23 21:09:23,845 INFO L78 Accepts]: Start accepts. Automaton has 58146 states and 65037 transitions. Word has length 730 [2018-10-23 21:09:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:09:23,845 INFO L481 AbstractCegarLoop]: Abstraction has 58146 states and 65037 transitions. [2018-10-23 21:09:23,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:09:23,846 INFO L276 IsEmpty]: Start isEmpty. Operand 58146 states and 65037 transitions. [2018-10-23 21:09:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2018-10-23 21:09:23,867 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:09:23,868 INFO L375 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:09:23,868 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:09:23,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:09:23,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1844742664, now seen corresponding path program 1 times [2018-10-23 21:09:23,869 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:09:23,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:09:23,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:23,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:09:23,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:09:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 220 proven. 72 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2018-10-23 21:09:25,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:09:25,277 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 21:09:25,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:09:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:09:25,473 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:09:25,998 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2018-10-23 21:09:26,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:09:26,020 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-23 21:09:26,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:09:26,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:09:26,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:09:26,022 INFO L87 Difference]: Start difference. First operand 58146 states and 65037 transitions. Second operand 5 states. [2018-10-23 21:09:42,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:09:42,093 INFO L93 Difference]: Finished difference Result 190058 states and 214489 transitions. [2018-10-23 21:09:42,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:09:42,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 753 [2018-10-23 21:09:42,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:09:42,228 INFO L225 Difference]: With dead ends: 190058 [2018-10-23 21:09:42,228 INFO L226 Difference]: Without dead ends: 131914 [2018-10-23 21:09:42,278 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 752 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:09:42,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131914 states. [2018-10-23 21:09:43,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131914 to 131907. [2018-10-23 21:09:43,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131907 states. [2018-10-23 21:09:44,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131907 states to 131907 states and 143733 transitions. [2018-10-23 21:09:44,047 INFO L78 Accepts]: Start accepts. Automaton has 131907 states and 143733 transitions. Word has length 753 [2018-10-23 21:09:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:09:44,049 INFO L481 AbstractCegarLoop]: Abstraction has 131907 states and 143733 transitions. [2018-10-23 21:09:44,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:09:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 131907 states and 143733 transitions. [2018-10-23 21:09:44,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 899 [2018-10-23 21:09:44,083 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:09:44,084 INFO L375 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:09:44,084 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:09:44,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:09:44,085 INFO L82 PathProgramCache]: Analyzing trace with hash -454332109, now seen corresponding path program 1 times [2018-10-23 21:09:44,086 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:09:44,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:09:44,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:44,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:09:44,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:09:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:09:45,171 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-23 21:09:45,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 21:09:45,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 21:09:45,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:09:45,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:09:45,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:09:45,173 INFO L87 Difference]: Start difference. First operand 131907 states and 143733 transitions. Second operand 4 states. [2018-10-23 21:10:00,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:10:00,663 INFO L93 Difference]: Finished difference Result 310263 states and 339182 transitions. [2018-10-23 21:10:00,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:10:00,664 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 898 [2018-10-23 21:10:00,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:10:00,851 INFO L225 Difference]: With dead ends: 310263 [2018-10-23 21:10:00,851 INFO L226 Difference]: Without dead ends: 178358 [2018-10-23 21:10:00,919 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:10:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178358 states. [2018-10-23 21:10:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178358 to 167419. [2018-10-23 21:10:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167419 states. [2018-10-23 21:10:02,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167419 states to 167419 states and 179231 transitions. [2018-10-23 21:10:02,323 INFO L78 Accepts]: Start accepts. Automaton has 167419 states and 179231 transitions. Word has length 898 [2018-10-23 21:10:02,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:10:02,324 INFO L481 AbstractCegarLoop]: Abstraction has 167419 states and 179231 transitions. [2018-10-23 21:10:02,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:10:02,324 INFO L276 IsEmpty]: Start isEmpty. Operand 167419 states and 179231 transitions. [2018-10-23 21:10:02,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 932 [2018-10-23 21:10:02,335 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:10:02,336 INFO L375 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, 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, 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, 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:10:02,336 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:10:02,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:10:02,337 INFO L82 PathProgramCache]: Analyzing trace with hash 819861566, now seen corresponding path program 1 times [2018-10-23 21:10:02,337 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:10:02,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:10:02,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:10:02,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:10:02,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:10:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-23 21:10:03,680 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,681 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,681 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,681 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,682 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,682 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,682 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,683 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,683 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,683 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,683 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,684 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,684 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,684 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,684 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,685 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,685 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,685 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,685 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,686 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,686 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,686 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,686 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,688 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,689 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,689 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,689 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,690 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,690 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,690 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,690 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,691 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,691 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,691 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,691 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,692 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,692 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,692 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,693 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,693 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,693 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,693 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,694 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,694 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,694 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,695 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,695 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,695 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,695 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,696 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,696 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,696 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,697 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,697 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,697 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,698 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,698 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,698 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,698 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,699 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,699 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,699 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,700 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,700 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,700 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,700 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,703 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,703 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,703 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,704 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,704 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,704 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,704 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,705 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,705 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,705 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,705 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,706 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,706 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,706 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,707 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,709 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,710 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,710 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,710 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,710 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,711 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,711 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,711 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,712 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,712 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,712 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,713 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,713 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,713 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,713 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,713 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,714 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,714 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,714 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,714 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,715 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,715 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,715 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,716 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,716 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,716 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,716 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,717 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,717 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,717 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,717 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,718 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,718 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,719 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,719 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,719 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,719 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,720 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,720 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,720 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,721 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,721 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,721 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,721 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,722 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,722 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,722 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,722 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,723 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,723 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,723 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,723 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,723 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,726 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,726 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,726 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,727 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,727 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,727 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,727 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,727 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,728 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,728 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,728 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,728 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,729 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,729 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,729 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,729 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,730 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,730 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,730 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,730 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,730 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,731 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,732 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,732 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,732 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,732 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-10-23 21:10:03,736 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:10:03,741 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:10:03,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:10:03 BoogieIcfgContainer [2018-10-23 21:10:03,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:10:03,743 INFO L168 Benchmark]: Toolchain (without parser) took 237791.92 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-10-23 21:10:03,744 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 21:10:03,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3402.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 971.5 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. [2018-10-23 21:10:03,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 1118.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 840.4 MB). Free memory was 971.5 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. [2018-10-23 21:10:03,747 INFO L168 Benchmark]: Boogie Preprocessor took 752.18 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. [2018-10-23 21:10:03,748 INFO L168 Benchmark]: RCFGBuilder took 18114.12 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 262.1 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 517.4 MB). Peak memory consumption was 779.6 MB. Max. memory is 7.1 GB. [2018-10-23 21:10:03,749 INFO L168 Benchmark]: TraceAbstraction took 214399.30 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-23 21:10:03,758 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3402.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 971.5 MB in the end (delta: 403.3 MB). Peak memory consumption was 403.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1118.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 840.4 MB). Free memory was 971.5 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 752.18 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18114.12 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 262.1 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 517.4 MB). Peak memory consumption was 779.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214399.30 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.1 GB). Free memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 142]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 142). Cancelled while BasicCegarLoop was analyzing trace of length 932 with TraceHistMax 4,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 930 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 214.3s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 196.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9328 SDtfs, 38710 SDslu, 3498 SDs, 0 SdLazy, 82990 SolverSat, 21808 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 168.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2489 GetRequests, 2460 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167419occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 47009 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 5857 NumberOfCodeBlocks, 5857 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 5845 ConstructedInterpolants, 0 QuantifiedInterpolants, 10764123 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2967 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 3744/3894 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown