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/Problem13_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:12:24,040 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:12:24,041 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:12:24,056 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:12:24,057 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:12:24,058 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:12:24,059 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:12:24,060 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:12:24,062 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:12:24,063 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:12:24,064 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:12:24,064 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:12:24,065 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:12:24,066 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:12:24,067 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:12:24,068 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:12:24,069 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:12:24,070 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:12:24,072 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:12:24,074 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:12:24,075 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:12:24,076 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:12:24,079 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:12:24,079 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:12:24,079 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:12:24,080 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:12:24,081 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:12:24,082 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:12:24,083 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:12:24,084 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:12:24,084 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:12:24,085 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:12:24,088 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 [2018-10-24 14:12:24,103 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:12:24,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:12:24,104 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:12:24,104 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:12:24,104 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:12:24,105 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:12:24,105 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:12:24,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:12:24,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:12:24,105 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:12:24,106 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:12:24,108 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:12:24,108 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:12:24,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:12:24,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:12:24,109 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:12:24,109 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:12:24,109 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:12:24,109 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:12:24,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:12:24,110 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:12:24,110 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:12:24,110 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:12:24,110 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:12:24,110 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:12:24,110 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:12:24,111 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:12:24,112 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:12:24,174 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:12:24,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:12:24,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:12:24,194 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:12:24,194 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:12:24,195 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label51_false-unreach-call.c [2018-10-24 14:12:24,267 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2461b82d9/572b2d7a583b4de2aa65ee56fa9e09fd/FLAG5c7c34e85 [2018-10-24 14:12:25,021 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:12:25,022 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label51_false-unreach-call.c [2018-10-24 14:12:25,060 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2461b82d9/572b2d7a583b4de2aa65ee56fa9e09fd/FLAG5c7c34e85 [2018-10-24 14:12:25,083 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2461b82d9/572b2d7a583b4de2aa65ee56fa9e09fd [2018-10-24 14:12:25,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:12:25,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:12:25,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:12:25,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:12:25,105 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:12:25,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:12:25" (1/1) ... [2018-10-24 14:12:25,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4dd763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:25, skipping insertion in model container [2018-10-24 14:12:25,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:12:25" (1/1) ... [2018-10-24 14:12:25,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:12:25,287 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:12:26,723 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:12:26,728 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:12:27,527 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:12:27,567 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:12:27,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27 WrapperNode [2018-10-24 14:12:27,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:12:27,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:12:27,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:12:27,570 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:12:27,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:27,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:12:28,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:12:28,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:12:28,445 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:12:28,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (1/1) ... [2018-10-24 14:12:28,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:12:28,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:12:28,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:12:28,892 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:12:28,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (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 [2018-10-24 14:12:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:12:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:12:28,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:12:45,052 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:12:45,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:12:45 BoogieIcfgContainer [2018-10-24 14:12:45,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:12:45,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:12:45,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:12:45,058 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:12:45,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:12:25" (1/3) ... [2018-10-24 14:12:45,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea554f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:12:45, skipping insertion in model container [2018-10-24 14:12:45,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:12:27" (2/3) ... [2018-10-24 14:12:45,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea554f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:12:45, skipping insertion in model container [2018-10-24 14:12:45,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:12:45" (3/3) ... [2018-10-24 14:12:45,062 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label51_false-unreach-call.c [2018-10-24 14:12:45,072 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:12:45,082 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:12:45,100 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:12:45,147 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:12:45,148 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:12:45,148 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:12:45,148 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:12:45,148 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:12:45,148 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:12:45,149 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:12:45,149 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:12:45,149 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:12:45,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-24 14:12:45,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-24 14:12:45,196 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:12:45,197 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] [2018-10-24 14:12:45,200 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:12:45,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:12:45,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1473047758, now seen corresponding path program 1 times [2018-10-24 14:12:45,209 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:12:45,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:12:45,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:45,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:12:45,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:12:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:12:45,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:12:45,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:12:45,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:12:45,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:12:45,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:12:45,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:12:45,755 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 4 states. [2018-10-24 14:13:01,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:01,549 INFO L93 Difference]: Finished difference Result 3870 states and 7276 transitions. [2018-10-24 14:13:01,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:13:01,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-10-24 14:13:01,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:01,600 INFO L225 Difference]: With dead ends: 3870 [2018-10-24 14:13:01,600 INFO L226 Difference]: Without dead ends: 2764 [2018-10-24 14:13:01,611 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:01,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2018-10-24 14:13:01,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2736. [2018-10-24 14:13:01,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2736 states. [2018-10-24 14:13:01,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 4487 transitions. [2018-10-24 14:13:01,777 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 4487 transitions. Word has length 25 [2018-10-24 14:13:01,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:01,778 INFO L481 AbstractCegarLoop]: Abstraction has 2736 states and 4487 transitions. [2018-10-24 14:13:01,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:13:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 4487 transitions. [2018-10-24 14:13:01,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 14:13:01,785 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:01,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:13:01,786 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:01,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:01,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1869468109, now seen corresponding path program 1 times [2018-10-24 14:13:01,787 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:01,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:01,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:01,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:01,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:02,788 WARN L179 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-24 14:13:03,107 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:03,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:03,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:13:03,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:13:03,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:13:03,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:13:03,112 INFO L87 Difference]: Start difference. First operand 2736 states and 4487 transitions. Second operand 5 states. [2018-10-24 14:13:03,362 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 14:13:23,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:23,198 INFO L93 Difference]: Finished difference Result 9428 states and 14930 transitions. [2018-10-24 14:13:23,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:13:23,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 131 [2018-10-24 14:13:23,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:23,235 INFO L225 Difference]: With dead ends: 9428 [2018-10-24 14:13:23,235 INFO L226 Difference]: Without dead ends: 6694 [2018-10-24 14:13:23,240 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:13:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6694 states. [2018-10-24 14:13:23,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6694 to 6693. [2018-10-24 14:13:23,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6693 states. [2018-10-24 14:13:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6693 states to 6693 states and 9417 transitions. [2018-10-24 14:13:23,369 INFO L78 Accepts]: Start accepts. Automaton has 6693 states and 9417 transitions. Word has length 131 [2018-10-24 14:13:23,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:23,370 INFO L481 AbstractCegarLoop]: Abstraction has 6693 states and 9417 transitions. [2018-10-24 14:13:23,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:13:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 6693 states and 9417 transitions. [2018-10-24 14:13:23,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-10-24 14:13:23,381 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:23,382 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:13:23,382 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:23,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:23,383 INFO L82 PathProgramCache]: Analyzing trace with hash -63284076, now seen corresponding path program 1 times [2018-10-24 14:13:23,383 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:23,383 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:23,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:23,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:23,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:23,818 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:23,818 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:23,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:13:23,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:13:23,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:13:23,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:23,822 INFO L87 Difference]: Start difference. First operand 6693 states and 9417 transitions. Second operand 4 states. [2018-10-24 14:13:33,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:33,874 INFO L93 Difference]: Finished difference Result 15792 states and 23310 transitions. [2018-10-24 14:13:33,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:13:33,875 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 201 [2018-10-24 14:13:33,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:33,922 INFO L225 Difference]: With dead ends: 15792 [2018-10-24 14:13:33,922 INFO L226 Difference]: Without dead ends: 9889 [2018-10-24 14:13:33,929 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:13:33,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9889 states. [2018-10-24 14:13:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9889 to 9863. [2018-10-24 14:13:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9863 states. [2018-10-24 14:13:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9863 states to 9863 states and 13541 transitions. [2018-10-24 14:13:34,082 INFO L78 Accepts]: Start accepts. Automaton has 9863 states and 13541 transitions. Word has length 201 [2018-10-24 14:13:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:34,083 INFO L481 AbstractCegarLoop]: Abstraction has 9863 states and 13541 transitions. [2018-10-24 14:13:34,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:13:34,083 INFO L276 IsEmpty]: Start isEmpty. Operand 9863 states and 13541 transitions. [2018-10-24 14:13:34,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-10-24 14:13:34,085 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:34,086 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:13:34,086 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:34,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:34,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1923206406, now seen corresponding path program 1 times [2018-10-24 14:13:34,086 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:34,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:34,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:34,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:34,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:34,388 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:34,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:34,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:13:34,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:13:34,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:13:34,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:13:34,389 INFO L87 Difference]: Start difference. First operand 9863 states and 13541 transitions. Second operand 5 states. [2018-10-24 14:13:53,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:13:53,734 INFO L93 Difference]: Finished difference Result 43673 states and 61710 transitions. [2018-10-24 14:13:53,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:13:53,734 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2018-10-24 14:13:53,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:13:53,817 INFO L225 Difference]: With dead ends: 43673 [2018-10-24 14:13:53,817 INFO L226 Difference]: Without dead ends: 34600 [2018-10-24 14:13:53,832 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:13:53,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34600 states. [2018-10-24 14:13:54,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34600 to 34418. [2018-10-24 14:13:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34418 states. [2018-10-24 14:13:54,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34418 states to 34418 states and 45210 transitions. [2018-10-24 14:13:54,291 INFO L78 Accepts]: Start accepts. Automaton has 34418 states and 45210 transitions. Word has length 208 [2018-10-24 14:13:54,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:13:54,292 INFO L481 AbstractCegarLoop]: Abstraction has 34418 states and 45210 transitions. [2018-10-24 14:13:54,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:13:54,292 INFO L276 IsEmpty]: Start isEmpty. Operand 34418 states and 45210 transitions. [2018-10-24 14:13:54,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-10-24 14:13:54,300 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:13:54,300 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:13:54,301 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:13:54,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:13:54,301 INFO L82 PathProgramCache]: Analyzing trace with hash 23292814, now seen corresponding path program 1 times [2018-10-24 14:13:54,301 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:13:54,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:13:54,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:54,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:13:54,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:13:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:13:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:13:54,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:13:54,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:13:54,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:13:54,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:13:54,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:13:54,559 INFO L87 Difference]: Start difference. First operand 34418 states and 45210 transitions. Second operand 3 states. [2018-10-24 14:14:01,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:01,121 INFO L93 Difference]: Finished difference Result 69603 states and 91391 transitions. [2018-10-24 14:14:01,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:14:01,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 266 [2018-10-24 14:14:01,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:01,194 INFO L225 Difference]: With dead ends: 69603 [2018-10-24 14:14:01,195 INFO L226 Difference]: Without dead ends: 35975 [2018-10-24 14:14:01,225 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:14:01,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35975 states. [2018-10-24 14:14:01,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35975 to 35971. [2018-10-24 14:14:01,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35971 states. [2018-10-24 14:14:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35971 states to 35971 states and 43276 transitions. [2018-10-24 14:14:01,608 INFO L78 Accepts]: Start accepts. Automaton has 35971 states and 43276 transitions. Word has length 266 [2018-10-24 14:14:01,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:01,609 INFO L481 AbstractCegarLoop]: Abstraction has 35971 states and 43276 transitions. [2018-10-24 14:14:01,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:14:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 35971 states and 43276 transitions. [2018-10-24 14:14:01,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-10-24 14:14:01,622 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:01,622 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:14:01,623 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:01,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:01,623 INFO L82 PathProgramCache]: Analyzing trace with hash -838332517, now seen corresponding path program 1 times [2018-10-24 14:14:01,623 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:01,623 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:01,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:01,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:01,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 244 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-10-24 14:14:02,037 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:14:02,037 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 [2018-10-24 14:14:02,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:02,203 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:14:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-10-24 14:14:02,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:14:02,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:14:02,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:14:02,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:14:02,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:02,378 INFO L87 Difference]: Start difference. First operand 35971 states and 43276 transitions. Second operand 4 states. [2018-10-24 14:14:13,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:13,388 INFO L93 Difference]: Finished difference Result 133457 states and 161522 transitions. [2018-10-24 14:14:13,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:13,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 334 [2018-10-24 14:14:13,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:13,546 INFO L225 Difference]: With dead ends: 133457 [2018-10-24 14:14:13,546 INFO L226 Difference]: Without dead ends: 98276 [2018-10-24 14:14:13,581 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:13,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98276 states. [2018-10-24 14:14:14,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98276 to 65910. [2018-10-24 14:14:14,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65910 states. [2018-10-24 14:14:14,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65910 states to 65910 states and 76253 transitions. [2018-10-24 14:14:14,738 INFO L78 Accepts]: Start accepts. Automaton has 65910 states and 76253 transitions. Word has length 334 [2018-10-24 14:14:14,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:14,738 INFO L481 AbstractCegarLoop]: Abstraction has 65910 states and 76253 transitions. [2018-10-24 14:14:14,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:14:14,738 INFO L276 IsEmpty]: Start isEmpty. Operand 65910 states and 76253 transitions. [2018-10-24 14:14:14,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2018-10-24 14:14:14,753 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:14,753 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:14:14,754 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:14,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:14,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1483410897, now seen corresponding path program 1 times [2018-10-24 14:14:14,754 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:14,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:14,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:14,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:14,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:15,149 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 14:14:15,279 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 244 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-10-24 14:14:15,279 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:14:15,279 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 [2018-10-24 14:14:15,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:15,394 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:14:15,504 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-10-24 14:14:15,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:14:15,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:14:15,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:14:15,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:14:15,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:15,538 INFO L87 Difference]: Start difference. First operand 65910 states and 76253 transitions. Second operand 4 states. [2018-10-24 14:14:27,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:27,137 INFO L93 Difference]: Finished difference Result 218554 states and 252582 transitions. [2018-10-24 14:14:27,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:27,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 340 [2018-10-24 14:14:27,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:27,318 INFO L225 Difference]: With dead ends: 218554 [2018-10-24 14:14:27,318 INFO L226 Difference]: Without dead ends: 153434 [2018-10-24 14:14:27,378 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 340 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:27,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153434 states. [2018-10-24 14:14:28,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153434 to 114762. [2018-10-24 14:14:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114762 states. [2018-10-24 14:14:28,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114762 states to 114762 states and 130187 transitions. [2018-10-24 14:14:28,657 INFO L78 Accepts]: Start accepts. Automaton has 114762 states and 130187 transitions. Word has length 340 [2018-10-24 14:14:28,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:28,658 INFO L481 AbstractCegarLoop]: Abstraction has 114762 states and 130187 transitions. [2018-10-24 14:14:28,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:14:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 114762 states and 130187 transitions. [2018-10-24 14:14:28,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-10-24 14:14:28,677 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:28,678 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:14:28,678 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:28,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:28,678 INFO L82 PathProgramCache]: Analyzing trace with hash -278948975, now seen corresponding path program 1 times [2018-10-24 14:14:28,679 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:28,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:28,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:28,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:28,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-10-24 14:14:29,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:14:29,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:14:29,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:14:29,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:14:29,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:14:29,930 INFO L87 Difference]: Start difference. First operand 114762 states and 130187 transitions. Second operand 3 states. [2018-10-24 14:14:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:37,123 INFO L93 Difference]: Finished difference Result 308314 states and 350199 transitions. [2018-10-24 14:14:37,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:14:37,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 360 [2018-10-24 14:14:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:37,331 INFO L225 Difference]: With dead ends: 308314 [2018-10-24 14:14:37,332 INFO L226 Difference]: Without dead ends: 188016 [2018-10-24 14:14:37,417 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:14:37,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188016 states. [2018-10-24 14:14:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188016 to 177761. [2018-10-24 14:14:39,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177761 states. [2018-10-24 14:14:39,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177761 states to 177761 states and 195742 transitions. [2018-10-24 14:14:39,869 INFO L78 Accepts]: Start accepts. Automaton has 177761 states and 195742 transitions. Word has length 360 [2018-10-24 14:14:39,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:39,869 INFO L481 AbstractCegarLoop]: Abstraction has 177761 states and 195742 transitions. [2018-10-24 14:14:39,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:14:39,869 INFO L276 IsEmpty]: Start isEmpty. Operand 177761 states and 195742 transitions. [2018-10-24 14:14:39,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2018-10-24 14:14:39,881 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:39,882 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:14:39,882 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:39,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:39,882 INFO L82 PathProgramCache]: Analyzing trace with hash -161572742, now seen corresponding path program 1 times [2018-10-24 14:14:39,882 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:39,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:39,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:39,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:39,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:39,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:40,223 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-10-24 14:14:40,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:14:40,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:14:40,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:14:40,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:14:40,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:40,225 INFO L87 Difference]: Start difference. First operand 177761 states and 195742 transitions. Second operand 4 states. [2018-10-24 14:14:54,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:14:54,438 INFO L93 Difference]: Finished difference Result 366553 states and 403044 transitions. [2018-10-24 14:14:54,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:14:54,438 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 383 [2018-10-24 14:14:54,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:14:56,208 INFO L225 Difference]: With dead ends: 366553 [2018-10-24 14:14:56,209 INFO L226 Difference]: Without dead ends: 169036 [2018-10-24 14:14:56,281 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:14:56,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169036 states. [2018-10-24 14:14:57,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169036 to 158791. [2018-10-24 14:14:57,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158791 states. [2018-10-24 14:14:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158791 states to 158791 states and 173588 transitions. [2018-10-24 14:14:57,651 INFO L78 Accepts]: Start accepts. Automaton has 158791 states and 173588 transitions. Word has length 383 [2018-10-24 14:14:57,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:14:57,652 INFO L481 AbstractCegarLoop]: Abstraction has 158791 states and 173588 transitions. [2018-10-24 14:14:57,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:14:57,652 INFO L276 IsEmpty]: Start isEmpty. Operand 158791 states and 173588 transitions. [2018-10-24 14:14:57,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2018-10-24 14:14:57,661 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:14:57,661 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, 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, 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, 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] [2018-10-24 14:14:57,661 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:14:57,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:14:57,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1025877272, now seen corresponding path program 1 times [2018-10-24 14:14:57,662 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:14:57,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:14:57,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:57,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:57,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:14:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 385 proven. 5 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 14:14:58,134 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:14:58,134 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 [2018-10-24 14:14:59,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:14:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:14:59,339 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:14:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2018-10-24 14:14:59,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:14:59,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2018-10-24 14:14:59,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:14:59,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:14:59,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:14:59,515 INFO L87 Difference]: Start difference. First operand 158791 states and 173588 transitions. Second operand 8 states. [2018-10-24 14:15:23,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:15:23,188 INFO L93 Difference]: Finished difference Result 320852 states and 351206 transitions. [2018-10-24 14:15:23,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 14:15:23,189 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 444 [2018-10-24 14:15:23,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:15:23,386 INFO L225 Difference]: With dead ends: 320852 [2018-10-24 14:15:23,386 INFO L226 Difference]: Without dead ends: 159677 [2018-10-24 14:15:23,435 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 450 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-24 14:15:23,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159677 states. [2018-10-24 14:15:24,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159677 to 147709. [2018-10-24 14:15:24,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147709 states. [2018-10-24 14:15:24,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147709 states to 147709 states and 156525 transitions. [2018-10-24 14:15:24,685 INFO L78 Accepts]: Start accepts. Automaton has 147709 states and 156525 transitions. Word has length 444 [2018-10-24 14:15:24,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:15:24,685 INFO L481 AbstractCegarLoop]: Abstraction has 147709 states and 156525 transitions. [2018-10-24 14:15:24,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:15:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 147709 states and 156525 transitions. [2018-10-24 14:15:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2018-10-24 14:15:24,694 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:15:24,695 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:15:24,695 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:15:24,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:15:24,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1602407670, now seen corresponding path program 1 times [2018-10-24 14:15:24,696 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:15:24,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:15:24,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:24,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:15:24,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:15:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 14:15:25,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:15:25,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:15:25,646 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:15:25,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:15:25,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:15:25,647 INFO L87 Difference]: Start difference. First operand 147709 states and 156525 transitions. Second operand 4 states. [2018-10-24 14:15:36,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:15:36,914 INFO L93 Difference]: Finished difference Result 297799 states and 315490 transitions. [2018-10-24 14:15:36,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:15:36,915 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 505 [2018-10-24 14:15:36,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:15:37,068 INFO L225 Difference]: With dead ends: 297799 [2018-10-24 14:15:37,069 INFO L226 Difference]: Without dead ends: 147717 [2018-10-24 14:15:37,122 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:15:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147717 states. [2018-10-24 14:15:38,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147717 to 144544. [2018-10-24 14:15:38,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144544 states. [2018-10-24 14:15:38,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144544 states to 144544 states and 150981 transitions. [2018-10-24 14:15:38,369 INFO L78 Accepts]: Start accepts. Automaton has 144544 states and 150981 transitions. Word has length 505 [2018-10-24 14:15:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:15:38,370 INFO L481 AbstractCegarLoop]: Abstraction has 144544 states and 150981 transitions. [2018-10-24 14:15:38,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:15:38,370 INFO L276 IsEmpty]: Start isEmpty. Operand 144544 states and 150981 transitions. [2018-10-24 14:15:38,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2018-10-24 14:15:38,379 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:15:38,379 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:15:38,380 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:15:38,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:15:38,380 INFO L82 PathProgramCache]: Analyzing trace with hash 825951640, now seen corresponding path program 1 times [2018-10-24 14:15:38,380 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:15:38,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:15:38,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:38,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:15:38,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:15:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 881 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2018-10-24 14:15:39,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:15:39,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:15:39,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:15:39,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:15:39,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:15:39,242 INFO L87 Difference]: Start difference. First operand 144544 states and 150981 transitions. Second operand 3 states. [2018-10-24 14:15:43,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:15:43,558 INFO L93 Difference]: Finished difference Result 286710 states and 299409 transitions. [2018-10-24 14:15:43,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:15:43,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 515 [2018-10-24 14:15:43,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:15:43,725 INFO L225 Difference]: With dead ends: 286710 [2018-10-24 14:15:43,725 INFO L226 Difference]: Without dead ends: 142954 [2018-10-24 14:15:43,803 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:15:43,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142954 states. [2018-10-24 14:15:45,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142954 to 142954. [2018-10-24 14:15:45,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142954 states. [2018-10-24 14:15:45,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142954 states to 142954 states and 149205 transitions. [2018-10-24 14:15:45,613 INFO L78 Accepts]: Start accepts. Automaton has 142954 states and 149205 transitions. Word has length 515 [2018-10-24 14:15:45,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:15:45,614 INFO L481 AbstractCegarLoop]: Abstraction has 142954 states and 149205 transitions. [2018-10-24 14:15:45,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:15:45,615 INFO L276 IsEmpty]: Start isEmpty. Operand 142954 states and 149205 transitions. [2018-10-24 14:15:45,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2018-10-24 14:15:45,625 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:15:45,626 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:15:45,626 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:15:45,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:15:45,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1462207020, now seen corresponding path program 1 times [2018-10-24 14:15:45,626 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:15:45,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:15:45,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:45,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:15:45,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:15:46,320 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2018-10-24 14:15:46,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:15:46,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:15:46,321 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:15:46,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:15:46,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:15:46,322 INFO L87 Difference]: Start difference. First operand 142954 states and 149205 transitions. Second operand 4 states. [2018-10-24 14:15:56,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:15:56,388 INFO L93 Difference]: Finished difference Result 315916 states and 330138 transitions. [2018-10-24 14:15:56,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:15:56,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 528 [2018-10-24 14:15:56,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:15:56,567 INFO L225 Difference]: With dead ends: 315916 [2018-10-24 14:15:56,567 INFO L226 Difference]: Without dead ends: 173752 [2018-10-24 14:15:56,640 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:15:56,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173752 states. [2018-10-24 14:15:58,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173752 to 168969. [2018-10-24 14:15:58,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168969 states. [2018-10-24 14:15:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168969 states to 168969 states and 175905 transitions. [2018-10-24 14:15:58,642 INFO L78 Accepts]: Start accepts. Automaton has 168969 states and 175905 transitions. Word has length 528 [2018-10-24 14:15:58,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:15:58,642 INFO L481 AbstractCegarLoop]: Abstraction has 168969 states and 175905 transitions. [2018-10-24 14:15:58,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:15:58,642 INFO L276 IsEmpty]: Start isEmpty. Operand 168969 states and 175905 transitions. [2018-10-24 14:15:58,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2018-10-24 14:15:58,673 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:15:58,674 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 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] [2018-10-24 14:15:58,674 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:15:58,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:15:58,675 INFO L82 PathProgramCache]: Analyzing trace with hash -2134973995, now seen corresponding path program 1 times [2018-10-24 14:15:58,675 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:15:58,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:15:58,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:58,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:15:58,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:15:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:16:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 872 proven. 16 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2018-10-24 14:16:00,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:16:00,020 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 [2018-10-24 14:16:00,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:16:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:16:00,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:16:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1058 backedges. 872 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2018-10-24 14:16:00,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:16:00,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-24 14:16:00,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:16:00,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:16:00,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:16:00,661 INFO L87 Difference]: Start difference. First operand 168969 states and 175905 transitions. Second operand 5 states. [2018-10-24 14:16:11,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:16:11,087 INFO L93 Difference]: Finished difference Result 336378 states and 350203 transitions. [2018-10-24 14:16:11,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:16:11,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 774 [2018-10-24 14:16:11,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:16:11,267 INFO L225 Difference]: With dead ends: 336378 [2018-10-24 14:16:11,267 INFO L226 Difference]: Without dead ends: 163457 [2018-10-24 14:16:11,345 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 778 GetRequests, 774 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:16:11,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163457 states. [2018-10-24 14:16:13,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163457 to 150025. [2018-10-24 14:16:13,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150025 states. [2018-10-24 14:16:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150025 states to 150025 states and 154287 transitions. [2018-10-24 14:16:13,148 INFO L78 Accepts]: Start accepts. Automaton has 150025 states and 154287 transitions. Word has length 774 [2018-10-24 14:16:13,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:16:13,148 INFO L481 AbstractCegarLoop]: Abstraction has 150025 states and 154287 transitions. [2018-10-24 14:16:13,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:16:13,148 INFO L276 IsEmpty]: Start isEmpty. Operand 150025 states and 154287 transitions. [2018-10-24 14:16:13,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2018-10-24 14:16:13,175 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:16:13,176 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:16:13,176 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:16:13,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:16:13,177 INFO L82 PathProgramCache]: Analyzing trace with hash 838063221, now seen corresponding path program 1 times [2018-10-24 14:16:13,177 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:16:13,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:16:13,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:16:13,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:16:13,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:16:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:16:14,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1391 backedges. 624 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2018-10-24 14:16:14,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:16:14,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:16:14,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:16:14,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:16:14,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:16:14,475 INFO L87 Difference]: Start difference. First operand 150025 states and 154287 transitions. Second operand 5 states. Received shutdown request... [2018-10-24 14:16:16,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:16:16,353 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:16:16,359 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:16:16,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:16:16 BoogieIcfgContainer [2018-10-24 14:16:16,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:16:16,361 INFO L168 Benchmark]: Toolchain (without parser) took 231265.27 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 232.1 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-10-24 14:16:16,362 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. [2018-10-24 14:16:16,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2469.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-24 14:16:16,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 875.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.7 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -994.1 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:16:16,365 INFO L168 Benchmark]: Boogie Preprocessor took 446.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:16:16,366 INFO L168 Benchmark]: RCFGBuilder took 16161.80 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 263.7 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -8.0 MB). Peak memory consumption was 620.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:16:16,367 INFO L168 Benchmark]: TraceAbstraction took 211305.71 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.2 GB in the end (delta: 908.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-24 14:16:16,372 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 2469.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 875.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 802.7 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -994.1 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 446.73 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16161.80 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 263.7 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -8.0 MB). Peak memory consumption was 620.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211305.71 ms. Allocated memory was 2.6 GB in the beginning and 4.5 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.2 GB in the end (delta: 908.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 84]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 84). Cancelled while BasicCegarLoop was constructing difference of abstraction (150025states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (3070 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 211.2s OverallTime, 15 OverallIterations, 7 TraceHistogramMax, 181.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12021 SDtfs, 39590 SDslu, 3329 SDs, 0 SdLazy, 69570 SolverSat, 17389 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 142.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1964 GetRequests, 1914 SyntacticMatches, 10 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177761occurred in iteration=8, 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: 15.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 125135 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 7721 NumberOfCodeBlocks, 7721 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7702 ConstructedInterpolants, 0 QuantifiedInterpolants, 8564537 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2473 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 9720/9749 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown