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/Problem17_label37_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:31:51,833 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:31:51,837 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:31:51,849 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:31:51,850 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:31:51,851 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:31:51,852 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:31:51,854 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:31:51,856 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:31:51,856 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:31:51,857 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:31:51,858 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:31:51,859 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:31:51,860 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:31:51,861 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:31:51,862 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:31:51,863 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:31:51,864 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:31:51,866 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:31:51,868 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:31:51,872 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:31:51,874 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:31:51,879 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:31:51,880 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:31:51,880 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:31:51,883 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:31:51,885 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:31:51,885 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:31:51,886 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:31:51,887 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:31:51,887 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:31:51,888 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:31:51,890 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 14:31:51,907 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:31:51,907 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:31:51,908 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:31:51,908 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:31:51,912 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:31:51,913 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:31:51,913 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:31:51,913 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:31:51,913 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:31:51,914 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:31:51,915 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:31:51,915 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:31:51,915 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:31:51,915 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:31:51,916 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:31:51,916 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:31:51,916 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:31:51,916 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:31:51,916 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:31:51,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:31:51,918 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:31:51,918 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:31:51,918 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:31:51,919 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:31:51,919 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:31:51,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:31:51,919 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:31:51,919 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:31:51,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:31:52,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:31:52,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:31:52,015 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:31:52,015 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:31:52,016 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label37_false-unreach-call.c [2018-10-24 14:31:52,074 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ab435b24f/60cf1c4a77714224ba469da4d2c57619/FLAG34ae41122 [2018-10-24 14:31:52,812 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:31:52,812 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label37_false-unreach-call.c [2018-10-24 14:31:52,843 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ab435b24f/60cf1c4a77714224ba469da4d2c57619/FLAG34ae41122 [2018-10-24 14:31:52,861 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ab435b24f/60cf1c4a77714224ba469da4d2c57619 [2018-10-24 14:31:52,872 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:31:52,873 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:31:52,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:31:52,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:31:52,880 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:31:52,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:31:52" (1/1) ... [2018-10-24 14:31:52,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b692d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:52, skipping insertion in model container [2018-10-24 14:31:52,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:31:52" (1/1) ... [2018-10-24 14:31:52,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:31:53,024 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:31:54,053 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:31:54,058 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:31:54,459 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:31:54,482 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:31:54,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54 WrapperNode [2018-10-24 14:31:54,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:31:54,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:31:54,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:31:54,484 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:31:54,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (1/1) ... [2018-10-24 14:31:54,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (1/1) ... [2018-10-24 14:31:55,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:31:55,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:31:55,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:31:55,021 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:31:55,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (1/1) ... [2018-10-24 14:31:55,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (1/1) ... [2018-10-24 14:31:55,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (1/1) ... [2018-10-24 14:31:55,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (1/1) ... [2018-10-24 14:31:55,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (1/1) ... [2018-10-24 14:31:55,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (1/1) ... [2018-10-24 14:31:55,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (1/1) ... [2018-10-24 14:31:55,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:31:55,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:31:55,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:31:55,358 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:31:55,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (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 14:31:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:31:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:31:55,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:32:09,259 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:32:09,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:32:09 BoogieIcfgContainer [2018-10-24 14:32:09,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:32:09,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:32:09,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:32:09,265 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:32:09,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:31:52" (1/3) ... [2018-10-24 14:32:09,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf5f2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:32:09, skipping insertion in model container [2018-10-24 14:32:09,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:31:54" (2/3) ... [2018-10-24 14:32:09,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf5f2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:32:09, skipping insertion in model container [2018-10-24 14:32:09,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:32:09" (3/3) ... [2018-10-24 14:32:09,269 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label37_false-unreach-call.c [2018-10-24 14:32:09,279 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:32:09,289 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:32:09,309 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:32:09,349 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:32:09,350 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:32:09,350 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:32:09,351 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:32:09,351 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:32:09,351 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:32:09,351 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:32:09,351 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:32:09,352 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:32:09,383 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states. [2018-10-24 14:32:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-24 14:32:09,390 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:32:09,392 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:32:09,394 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:32:09,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:32:09,401 INFO L82 PathProgramCache]: Analyzing trace with hash -686802918, now seen corresponding path program 1 times [2018-10-24 14:32:09,403 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:32:09,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:32:09,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:09,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:32:09,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:32:09,790 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 14:32:09,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:32:09,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:32:09,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:32:09,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:32:09,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:32:09,817 INFO L87 Difference]: Start difference. First operand 591 states. Second operand 4 states. [2018-10-24 14:32:18,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:32:18,667 INFO L93 Difference]: Finished difference Result 2126 states and 3956 transitions. [2018-10-24 14:32:18,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:32:18,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-10-24 14:32:18,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:32:18,701 INFO L225 Difference]: With dead ends: 2126 [2018-10-24 14:32:18,701 INFO L226 Difference]: Without dead ends: 1528 [2018-10-24 14:32:18,711 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:32:18,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2018-10-24 14:32:18,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1048. [2018-10-24 14:32:18,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2018-10-24 14:32:18,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1826 transitions. [2018-10-24 14:32:18,840 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1826 transitions. Word has length 19 [2018-10-24 14:32:18,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:32:18,840 INFO L481 AbstractCegarLoop]: Abstraction has 1048 states and 1826 transitions. [2018-10-24 14:32:18,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:32:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1826 transitions. [2018-10-24 14:32:18,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-10-24 14:32:18,845 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:32:18,846 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:32:18,846 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:32:18,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:32:18,847 INFO L82 PathProgramCache]: Analyzing trace with hash 161564555, now seen corresponding path program 1 times [2018-10-24 14:32:18,847 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:32:18,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:32:18,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:18,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:32:18,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:32:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:32:19,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:32:19,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:32:19,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:32:19,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:32:19,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:32:19,124 INFO L87 Difference]: Start difference. First operand 1048 states and 1826 transitions. Second operand 4 states. [2018-10-24 14:32:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:32:28,741 INFO L93 Difference]: Finished difference Result 3810 states and 6822 transitions. [2018-10-24 14:32:28,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:32:28,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2018-10-24 14:32:28,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:32:28,757 INFO L225 Difference]: With dead ends: 3810 [2018-10-24 14:32:28,757 INFO L226 Difference]: Without dead ends: 2764 [2018-10-24 14:32:28,761 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 14:32:28,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2018-10-24 14:32:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2764. [2018-10-24 14:32:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2764 states. [2018-10-24 14:32:28,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 4043 transitions. [2018-10-24 14:32:28,823 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 4043 transitions. Word has length 91 [2018-10-24 14:32:28,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:32:28,824 INFO L481 AbstractCegarLoop]: Abstraction has 2764 states and 4043 transitions. [2018-10-24 14:32:28,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:32:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 4043 transitions. [2018-10-24 14:32:28,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-24 14:32:28,832 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:32:28,832 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:32:28,832 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:32:28,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:32:28,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1256320486, now seen corresponding path program 1 times [2018-10-24 14:32:28,833 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:32:28,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:32:28,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:28,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:32:28,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:32:29,070 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-24 14:32:29,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:32:29,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:32:29,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:32:29,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:32:29,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:32:29,074 INFO L87 Difference]: Start difference. First operand 2764 states and 4043 transitions. Second operand 3 states. [2018-10-24 14:32:34,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:32:34,811 INFO L93 Difference]: Finished difference Result 8080 states and 11868 transitions. [2018-10-24 14:32:34,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:32:34,812 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2018-10-24 14:32:34,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:32:34,840 INFO L225 Difference]: With dead ends: 8080 [2018-10-24 14:32:34,840 INFO L226 Difference]: Without dead ends: 5318 [2018-10-24 14:32:34,846 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 14:32:34,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5318 states. [2018-10-24 14:32:34,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5318 to 5318. [2018-10-24 14:32:34,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5318 states. [2018-10-24 14:32:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5318 states to 5318 states and 6872 transitions. [2018-10-24 14:32:34,957 INFO L78 Accepts]: Start accepts. Automaton has 5318 states and 6872 transitions. Word has length 175 [2018-10-24 14:32:34,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:32:34,958 INFO L481 AbstractCegarLoop]: Abstraction has 5318 states and 6872 transitions. [2018-10-24 14:32:34,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:32:34,959 INFO L276 IsEmpty]: Start isEmpty. Operand 5318 states and 6872 transitions. [2018-10-24 14:32:34,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-10-24 14:32:34,963 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:32:34,963 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:32:34,964 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:32:34,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:32:34,964 INFO L82 PathProgramCache]: Analyzing trace with hash -530703120, now seen corresponding path program 1 times [2018-10-24 14:32:34,964 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:32:34,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:32:34,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:34,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:32:34,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:32:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:32:35,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:32:35,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:32:35,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:32:35,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:32:35,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:32:35,216 INFO L87 Difference]: Start difference. First operand 5318 states and 6872 transitions. Second operand 4 states. [2018-10-24 14:32:39,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:32:39,702 INFO L93 Difference]: Finished difference Result 11486 states and 14992 transitions. [2018-10-24 14:32:39,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:32:39,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2018-10-24 14:32:39,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:32:39,729 INFO L225 Difference]: With dead ends: 11486 [2018-10-24 14:32:39,730 INFO L226 Difference]: Without dead ends: 6170 [2018-10-24 14:32:39,737 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 14:32:39,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6170 states. [2018-10-24 14:32:39,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6170 to 6170. [2018-10-24 14:32:39,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6170 states. [2018-10-24 14:32:39,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 7379 transitions. [2018-10-24 14:32:39,852 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 7379 transitions. Word has length 182 [2018-10-24 14:32:39,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:32:39,853 INFO L481 AbstractCegarLoop]: Abstraction has 6170 states and 7379 transitions. [2018-10-24 14:32:39,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:32:39,853 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 7379 transitions. [2018-10-24 14:32:39,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-10-24 14:32:39,859 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:32:39,860 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:32:39,860 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:32:39,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:32:39,861 INFO L82 PathProgramCache]: Analyzing trace with hash -473508876, now seen corresponding path program 1 times [2018-10-24 14:32:39,861 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:32:39,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:32:39,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:39,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:32:39,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:32:40,228 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-10-24 14:32:40,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:32:40,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:32:40,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:32:40,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:32:40,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:32:40,231 INFO L87 Difference]: Start difference. First operand 6170 states and 7379 transitions. Second operand 4 states. [2018-10-24 14:32:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:32:50,146 INFO L93 Difference]: Finished difference Result 15787 states and 19066 transitions. [2018-10-24 14:32:50,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:32:50,146 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 241 [2018-10-24 14:32:50,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:32:50,179 INFO L225 Difference]: With dead ends: 15787 [2018-10-24 14:32:50,180 INFO L226 Difference]: Without dead ends: 9619 [2018-10-24 14:32:50,187 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:32:50,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9619 states. [2018-10-24 14:32:50,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9619 to 8309. [2018-10-24 14:32:50,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8309 states. [2018-10-24 14:32:50,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8309 states to 8309 states and 9781 transitions. [2018-10-24 14:32:50,346 INFO L78 Accepts]: Start accepts. Automaton has 8309 states and 9781 transitions. Word has length 241 [2018-10-24 14:32:50,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:32:50,347 INFO L481 AbstractCegarLoop]: Abstraction has 8309 states and 9781 transitions. [2018-10-24 14:32:50,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:32:50,347 INFO L276 IsEmpty]: Start isEmpty. Operand 8309 states and 9781 transitions. [2018-10-24 14:32:50,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2018-10-24 14:32:50,352 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:32:50,353 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:32:50,353 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:32:50,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:32:50,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1272917966, now seen corresponding path program 1 times [2018-10-24 14:32:50,353 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:32:50,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:32:50,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:50,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:32:50,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:32:50,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:32:50,924 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 174 proven. 71 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-24 14:32:50,926 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:32:50,926 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 14:32:50,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:32:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:32:51,111 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:32:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 174 proven. 71 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-24 14:32:51,428 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:32:51,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 4 [2018-10-24 14:32:51,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:32:51,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:32:51,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:32:51,430 INFO L87 Difference]: Start difference. First operand 8309 states and 9781 transitions. Second operand 5 states. [2018-10-24 14:33:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:33:00,856 INFO L93 Difference]: Finished difference Result 25598 states and 30810 transitions. [2018-10-24 14:33:00,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:33:00,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2018-10-24 14:33:00,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:33:00,895 INFO L225 Difference]: With dead ends: 25598 [2018-10-24 14:33:00,895 INFO L226 Difference]: Without dead ends: 15099 [2018-10-24 14:33:00,906 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 244 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:33:00,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15099 states. [2018-10-24 14:33:01,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15099 to 13389. [2018-10-24 14:33:01,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13389 states. [2018-10-24 14:33:01,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13389 states to 13389 states and 14998 transitions. [2018-10-24 14:33:01,138 INFO L78 Accepts]: Start accepts. Automaton has 13389 states and 14998 transitions. Word has length 246 [2018-10-24 14:33:01,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:33:01,139 INFO L481 AbstractCegarLoop]: Abstraction has 13389 states and 14998 transitions. [2018-10-24 14:33:01,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:33:01,139 INFO L276 IsEmpty]: Start isEmpty. Operand 13389 states and 14998 transitions. [2018-10-24 14:33:01,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-10-24 14:33:01,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:33:01,145 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 14:33:01,145 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:33:01,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:33:01,146 INFO L82 PathProgramCache]: Analyzing trace with hash 620548439, now seen corresponding path program 1 times [2018-10-24 14:33:01,146 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:33:01,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:33:01,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:33:01,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:33:01,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:33:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:33:01,577 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-10-24 14:33:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2018-10-24 14:33:01,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:33:01,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:33:01,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:33:01,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:33:01,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:33:01,633 INFO L87 Difference]: Start difference. First operand 13389 states and 14998 transitions. Second operand 4 states. [2018-10-24 14:33:07,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:33:07,517 INFO L93 Difference]: Finished difference Result 36602 states and 41054 transitions. [2018-10-24 14:33:07,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:33:07,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 282 [2018-10-24 14:33:07,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:33:07,563 INFO L225 Difference]: With dead ends: 36602 [2018-10-24 14:33:07,564 INFO L226 Difference]: Without dead ends: 22779 [2018-10-24 14:33:07,576 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 14:33:07,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22779 states. [2018-10-24 14:33:07,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22779 to 18076. [2018-10-24 14:33:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18076 states. [2018-10-24 14:33:07,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18076 states to 18076 states and 19984 transitions. [2018-10-24 14:33:07,824 INFO L78 Accepts]: Start accepts. Automaton has 18076 states and 19984 transitions. Word has length 282 [2018-10-24 14:33:07,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:33:07,825 INFO L481 AbstractCegarLoop]: Abstraction has 18076 states and 19984 transitions. [2018-10-24 14:33:07,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:33:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 18076 states and 19984 transitions. [2018-10-24 14:33:07,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2018-10-24 14:33:07,838 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:33:07,838 INFO L375 BasicCegarLoop]: trace histogram [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, 5, 5, 5, 4, 3, 3, 3, 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] [2018-10-24 14:33:07,839 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:33:07,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:33:07,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1288469066, now seen corresponding path program 1 times [2018-10-24 14:33:07,839 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:33:07,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:33:07,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:33:07,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:33:07,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:33:07,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:33:08,601 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 466 proven. 83 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-10-24 14:33:08,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:33:08,602 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 14:33:08,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:33:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:33:08,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:33:09,148 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 21 [2018-10-24 14:33:09,356 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 511 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2018-10-24 14:33:09,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:33:09,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-10-24 14:33:09,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:33:09,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:33:09,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:33:09,391 INFO L87 Difference]: Start difference. First operand 18076 states and 19984 transitions. Second operand 7 states. [2018-10-24 14:33:09,593 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 14:34:23,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:23,775 INFO L93 Difference]: Finished difference Result 87792 states and 96701 transitions. [2018-10-24 14:34:23,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 14:34:23,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 425 [2018-10-24 14:34:23,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:23,859 INFO L225 Difference]: With dead ends: 87792 [2018-10-24 14:34:23,860 INFO L226 Difference]: Without dead ends: 62438 [2018-10-24 14:34:23,888 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-10-24 14:34:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62438 states. [2018-10-24 14:34:24,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62438 to 53886. [2018-10-24 14:34:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53886 states. [2018-10-24 14:34:24,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53886 states to 53886 states and 57571 transitions. [2018-10-24 14:34:24,784 INFO L78 Accepts]: Start accepts. Automaton has 53886 states and 57571 transitions. Word has length 425 [2018-10-24 14:34:24,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:24,784 INFO L481 AbstractCegarLoop]: Abstraction has 53886 states and 57571 transitions. [2018-10-24 14:34:24,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:34:24,784 INFO L276 IsEmpty]: Start isEmpty. Operand 53886 states and 57571 transitions. [2018-10-24 14:34:24,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2018-10-24 14:34:24,806 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:24,807 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 14:34:24,807 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:24,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:24,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1690994604, now seen corresponding path program 1 times [2018-10-24 14:34:24,808 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:24,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:24,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:24,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:24,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:25,766 WARN L179 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 14 [2018-10-24 14:34:26,025 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 222 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-24 14:34:26,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:34:26,025 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 14:34:26,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:26,162 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:34:26,500 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 222 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-24 14:34:26,536 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:34:26,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2018-10-24 14:34:26,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 14:34:26,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 14:34:26,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:34:26,538 INFO L87 Difference]: Start difference. First operand 53886 states and 57571 transitions. Second operand 9 states. [2018-10-24 14:34:35,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:34:35,662 INFO L93 Difference]: Finished difference Result 111611 states and 119139 transitions. [2018-10-24 14:34:35,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:34:35,663 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 457 [2018-10-24 14:34:35,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:34:35,719 INFO L225 Difference]: With dead ends: 111611 [2018-10-24 14:34:35,719 INFO L226 Difference]: Without dead ends: 57727 [2018-10-24 14:34:35,751 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-10-24 14:34:35,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57727 states. [2018-10-24 14:34:36,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57727 to 57719. [2018-10-24 14:34:36,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57719 states. [2018-10-24 14:34:36,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57719 states to 57719 states and 61515 transitions. [2018-10-24 14:34:36,447 INFO L78 Accepts]: Start accepts. Automaton has 57719 states and 61515 transitions. Word has length 457 [2018-10-24 14:34:36,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:34:36,448 INFO L481 AbstractCegarLoop]: Abstraction has 57719 states and 61515 transitions. [2018-10-24 14:34:36,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 14:34:36,448 INFO L276 IsEmpty]: Start isEmpty. Operand 57719 states and 61515 transitions. [2018-10-24 14:34:36,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2018-10-24 14:34:36,468 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:34:36,469 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:34:36,469 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:34:36,469 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:34:36,469 INFO L82 PathProgramCache]: Analyzing trace with hash -172057196, now seen corresponding path program 1 times [2018-10-24 14:34:36,469 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:34:36,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:34:36,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:36,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:36,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:34:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:37,747 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 17 proven. 480 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-10-24 14:34:37,747 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:34:37,747 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 14:34:37,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:34:37,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:34:37,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:34:38,121 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 13 [2018-10-24 14:34:38,626 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2018-10-24 14:34:38,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:34:38,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-24 14:34:38,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:34:38,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:34:38,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:34:38,648 INFO L87 Difference]: Start difference. First operand 57719 states and 61515 transitions. Second operand 8 states. [2018-10-24 14:36:03,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:36:03,343 INFO L93 Difference]: Finished difference Result 165795 states and 177499 transitions. [2018-10-24 14:36:03,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 14:36:03,344 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 467 [2018-10-24 14:36:03,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:36:03,469 INFO L225 Difference]: With dead ends: 165795 [2018-10-24 14:36:03,469 INFO L226 Difference]: Without dead ends: 108933 [2018-10-24 14:36:03,514 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 470 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-24 14:36:03,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108933 states. [2018-10-24 14:36:04,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108933 to 70953. [2018-10-24 14:36:04,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70953 states. [2018-10-24 14:36:04,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70953 states to 70953 states and 75574 transitions. [2018-10-24 14:36:04,708 INFO L78 Accepts]: Start accepts. Automaton has 70953 states and 75574 transitions. Word has length 467 [2018-10-24 14:36:04,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:36:04,709 INFO L481 AbstractCegarLoop]: Abstraction has 70953 states and 75574 transitions. [2018-10-24 14:36:04,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:36:04,709 INFO L276 IsEmpty]: Start isEmpty. Operand 70953 states and 75574 transitions. [2018-10-24 14:36:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-10-24 14:36:04,731 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:36:04,732 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:36:04,732 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:36:04,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:36:04,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1944443497, now seen corresponding path program 1 times [2018-10-24 14:36:04,733 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:36:04,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:36:04,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:36:04,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:36:04,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:36:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:36:05,146 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-24 14:36:05,548 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 Received shutdown request... [2018-10-24 14:36:05,883 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 265 proven. 83 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-10-24 14:36:05,883 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:36:05,883 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:36:05,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:36:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:36:06,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:36:06,036 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 14:36:06,237 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:36:06,238 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:36:06,243 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:36:06,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:36:06 BoogieIcfgContainer [2018-10-24 14:36:06,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:36:06,244 INFO L168 Benchmark]: Toolchain (without parser) took 253372.27 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -559.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 14:36:06,245 INFO L168 Benchmark]: CDTParser took 0.20 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 14:36:06,246 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1607.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:36:06,247 INFO L168 Benchmark]: Boogie Procedure Inliner took 536.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 785.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -910.6 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:36:06,248 INFO L168 Benchmark]: Boogie Preprocessor took 336.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:36:06,249 INFO L168 Benchmark]: RCFGBuilder took 13902.82 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 473.3 MB). Peak memory consumption was 473.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:36:06,249 INFO L168 Benchmark]: TraceAbstraction took 236982.65 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.2 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -301.1 MB). Peak memory consumption was 938.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:36:06,258 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1607.21 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 536.51 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 785.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -910.6 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 336.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13902.82 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 473.3 MB). Peak memory consumption was 473.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236982.65 ms. Allocated memory was 2.3 GB in the beginning and 3.6 GB in the end (delta: 1.2 GB). Free memory was 1.7 GB in the beginning and 2.0 GB in the end (delta: -301.1 MB). Peak memory consumption was 938.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 62). Cancelled while BasicCegarLoop was analyzing trace of length 501 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 591 locations, 1 error locations. TIMEOUT Result, 236.9s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 222.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4485 SDtfs, 18724 SDslu, 2512 SDs, 0 SdLazy, 43748 SolverSat, 6655 SolverUnsat, 62 SolverUnknown, 0 SolverNotchecked, 207.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1655 GetRequests, 1607 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70953occurred in iteration=10, 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: 3.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 54743 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 4180 NumberOfCodeBlocks, 4180 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4166 ConstructedInterpolants, 34 QuantifiedInterpolants, 5500305 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2131 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 3708/4579 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown