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/Problem12_label10_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:00:53,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:00:53,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:00:53,845 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:00:53,846 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:00:53,847 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:00:53,848 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:00:53,850 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:00:53,851 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:00:53,852 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:00:53,853 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:00:53,853 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:00:53,854 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:00:53,855 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:00:53,856 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:00:53,857 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:00:53,858 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:00:53,859 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:00:53,861 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:00:53,863 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:00:53,864 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:00:53,865 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:00:53,867 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:00:53,879 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 14:00:53,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:00:53,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:00:53,905 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:00:53,905 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:00:53,907 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:00:53,907 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:00:53,907 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:00:53,907 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:00:53,907 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:00:53,908 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:00:53,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:00:53,909 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:00:53,909 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:00:53,909 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:00:53,909 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:00:53,910 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:00:53,910 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:00:53,910 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:00:53,910 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:00:53,910 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:00:53,911 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:00:53,911 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:00:53,914 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:00:53,914 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:00:53,914 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:00:53,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:00:53,914 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:00:53,915 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:00:53,963 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:00:53,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:00:53,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:00:53,982 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:00:53,983 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:00:53,983 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label10_false-unreach-call.c [2018-10-24 14:00:54,041 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a84362b9d/0fe79220f7ad4a30bd23e7557f3435a3/FLAG9f4586fff [2018-10-24 14:00:54,811 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:00:54,812 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label10_false-unreach-call.c [2018-10-24 14:00:54,843 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a84362b9d/0fe79220f7ad4a30bd23e7557f3435a3/FLAG9f4586fff [2018-10-24 14:00:54,864 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/a84362b9d/0fe79220f7ad4a30bd23e7557f3435a3 [2018-10-24 14:00:54,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:00:54,878 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:00:54,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:00:54,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:00:54,883 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:00:54,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:00:54" (1/1) ... [2018-10-24 14:00:54,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c8607c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:54, skipping insertion in model container [2018-10-24 14:00:54,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:00:54" (1/1) ... [2018-10-24 14:00:54,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:00:55,061 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:00:56,993 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:00:56,998 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:00:57,653 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:00:57,688 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:00:57,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57 WrapperNode [2018-10-24 14:00:57,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:00:57,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:00:57,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:00:57,690 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:00:57,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (1/1) ... [2018-10-24 14:00:57,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (1/1) ... [2018-10-24 14:00:58,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:00:58,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:00:58,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:00:58,416 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:00:58,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (1/1) ... [2018-10-24 14:00:58,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (1/1) ... [2018-10-24 14:00:58,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (1/1) ... [2018-10-24 14:00:58,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (1/1) ... [2018-10-24 14:00:58,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (1/1) ... [2018-10-24 14:00:58,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (1/1) ... [2018-10-24 14:00:58,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (1/1) ... [2018-10-24 14:00:58,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:00:58,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:00:58,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:00:58,866 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:00:58,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (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 14:00:58,932 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:00:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:00:58,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:01:07,318 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:01:07,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:07 BoogieIcfgContainer [2018-10-24 14:01:07,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:01:07,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:01:07,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:01:07,324 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:01:07,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:00:54" (1/3) ... [2018-10-24 14:01:07,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4188a035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:01:07, skipping insertion in model container [2018-10-24 14:01:07,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:00:57" (2/3) ... [2018-10-24 14:01:07,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4188a035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:01:07, skipping insertion in model container [2018-10-24 14:01:07,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:01:07" (3/3) ... [2018-10-24 14:01:07,328 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label10_false-unreach-call.c [2018-10-24 14:01:07,336 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:01:07,345 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:01:07,362 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:01:07,405 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:01:07,406 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:01:07,406 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:01:07,407 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:01:07,407 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:01:07,407 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:01:07,407 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:01:07,407 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:01:07,407 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:01:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-10-24 14:01:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-24 14:01:07,446 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:01:07,447 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:01:07,449 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:01:07,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:01:07,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1880720510, now seen corresponding path program 1 times [2018-10-24 14:01:07,457 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:01:07,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:01:07,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:07,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:01:07,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:01:07,858 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 14:01:07,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:01:07,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:01:07,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:01:07,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:01:07,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:07,888 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-10-24 14:01:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:01:20,322 INFO L93 Difference]: Finished difference Result 3162 states and 6150 transitions. [2018-10-24 14:01:20,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:01:20,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-10-24 14:01:20,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:01:20,366 INFO L225 Difference]: With dead ends: 3162 [2018-10-24 14:01:20,367 INFO L226 Difference]: Without dead ends: 2336 [2018-10-24 14:01:20,376 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 14:01:20,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2018-10-24 14:01:20,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 2336. [2018-10-24 14:01:20,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2336 states. [2018-10-24 14:01:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3946 transitions. [2018-10-24 14:01:20,534 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3946 transitions. Word has length 28 [2018-10-24 14:01:20,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:01:20,535 INFO L481 AbstractCegarLoop]: Abstraction has 2336 states and 3946 transitions. [2018-10-24 14:01:20,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:01:20,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3946 transitions. [2018-10-24 14:01:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-24 14:01:20,541 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:01:20,541 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:01:20,542 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:01:20,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:01:20,542 INFO L82 PathProgramCache]: Analyzing trace with hash -606203915, now seen corresponding path program 1 times [2018-10-24 14:01:20,542 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:01:20,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:01:20,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:20,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:01:20,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:01:20,883 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:01:20,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:01:20,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:01:20,885 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:01:20,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:01:20,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:20,886 INFO L87 Difference]: Start difference. First operand 2336 states and 3946 transitions. Second operand 4 states. [2018-10-24 14:01:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:01:37,090 INFO L93 Difference]: Finished difference Result 9260 states and 15701 transitions. [2018-10-24 14:01:37,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:01:37,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 124 [2018-10-24 14:01:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:01:37,131 INFO L225 Difference]: With dead ends: 9260 [2018-10-24 14:01:37,131 INFO L226 Difference]: Without dead ends: 6926 [2018-10-24 14:01:37,137 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 14:01:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6926 states. [2018-10-24 14:01:37,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6926 to 4592. [2018-10-24 14:01:37,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4592 states. [2018-10-24 14:01:37,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 7081 transitions. [2018-10-24 14:01:37,241 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 7081 transitions. Word has length 124 [2018-10-24 14:01:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:01:37,241 INFO L481 AbstractCegarLoop]: Abstraction has 4592 states and 7081 transitions. [2018-10-24 14:01:37,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:01:37,242 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 7081 transitions. [2018-10-24 14:01:37,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-24 14:01:37,254 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:01:37,254 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:01:37,255 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:01:37,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:01:37,255 INFO L82 PathProgramCache]: Analyzing trace with hash 696471192, now seen corresponding path program 1 times [2018-10-24 14:01:37,255 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:01:37,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:01:37,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:37,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:01:37,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:01:37,687 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:01:37,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:01:37,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:01:37,689 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:01:37,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:01:37,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:01:37,691 INFO L87 Difference]: Start difference. First operand 4592 states and 7081 transitions. Second operand 4 states. [2018-10-24 14:01:45,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:01:45,885 INFO L93 Difference]: Finished difference Result 18206 states and 28164 transitions. [2018-10-24 14:01:45,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:01:45,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2018-10-24 14:01:45,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:01:45,945 INFO L225 Difference]: With dead ends: 18206 [2018-10-24 14:01:45,946 INFO L226 Difference]: Without dead ends: 13616 [2018-10-24 14:01:45,954 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 14:01:45,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13616 states. [2018-10-24 14:01:46,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13616 to 13616. [2018-10-24 14:01:46,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13616 states. [2018-10-24 14:01:46,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13616 states to 13616 states and 19969 transitions. [2018-10-24 14:01:46,184 INFO L78 Accepts]: Start accepts. Automaton has 13616 states and 19969 transitions. Word has length 174 [2018-10-24 14:01:46,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:01:46,185 INFO L481 AbstractCegarLoop]: Abstraction has 13616 states and 19969 transitions. [2018-10-24 14:01:46,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:01:46,185 INFO L276 IsEmpty]: Start isEmpty. Operand 13616 states and 19969 transitions. [2018-10-24 14:01:46,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-10-24 14:01:46,194 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:01:46,195 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:01:46,195 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:01:46,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:01:46,196 INFO L82 PathProgramCache]: Analyzing trace with hash 2144640638, now seen corresponding path program 1 times [2018-10-24 14:01:46,196 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:01:46,196 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:01:46,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:46,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:01:46,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:01:46,588 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-10-24 14:01:46,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:01:46,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:01:46,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:01:46,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:01:46,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:01:46,590 INFO L87 Difference]: Start difference. First operand 13616 states and 19969 transitions. Second operand 3 states. [2018-10-24 14:01:53,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:01:53,086 INFO L93 Difference]: Finished difference Result 40766 states and 59826 transitions. [2018-10-24 14:01:53,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:01:53,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 288 [2018-10-24 14:01:53,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:01:53,153 INFO L225 Difference]: With dead ends: 40766 [2018-10-24 14:01:53,154 INFO L226 Difference]: Without dead ends: 27152 [2018-10-24 14:01:53,170 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:01:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27152 states. [2018-10-24 14:01:53,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27152 to 27152. [2018-10-24 14:01:53,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27152 states. [2018-10-24 14:01:53,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27152 states to 27152 states and 38971 transitions. [2018-10-24 14:01:53,551 INFO L78 Accepts]: Start accepts. Automaton has 27152 states and 38971 transitions. Word has length 288 [2018-10-24 14:01:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:01:53,552 INFO L481 AbstractCegarLoop]: Abstraction has 27152 states and 38971 transitions. [2018-10-24 14:01:53,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:01:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 27152 states and 38971 transitions. [2018-10-24 14:01:53,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-10-24 14:01:53,575 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:01:53,575 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:01:53,575 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:01:53,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:01:53,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1438352898, now seen corresponding path program 1 times [2018-10-24 14:01:53,576 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:01:53,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:01:53,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:53,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:01:53,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:01:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:01:53,866 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 14:01:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-24 14:01:54,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:01:54,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:01:54,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:01:54,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:01:54,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:01:54,179 INFO L87 Difference]: Start difference. First operand 27152 states and 38971 transitions. Second operand 6 states. [2018-10-24 14:02:04,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:02:04,395 INFO L93 Difference]: Finished difference Result 58062 states and 82397 transitions. [2018-10-24 14:02:04,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:02:04,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 389 [2018-10-24 14:02:04,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:02:04,453 INFO L225 Difference]: With dead ends: 58062 [2018-10-24 14:02:04,453 INFO L226 Difference]: Without dead ends: 30912 [2018-10-24 14:02:04,481 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:02:04,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30912 states. [2018-10-24 14:02:04,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30912 to 30912. [2018-10-24 14:02:04,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30912 states. [2018-10-24 14:02:04,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30912 states to 30912 states and 42035 transitions. [2018-10-24 14:02:04,879 INFO L78 Accepts]: Start accepts. Automaton has 30912 states and 42035 transitions. Word has length 389 [2018-10-24 14:02:04,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:02:04,880 INFO L481 AbstractCegarLoop]: Abstraction has 30912 states and 42035 transitions. [2018-10-24 14:02:04,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:02:04,880 INFO L276 IsEmpty]: Start isEmpty. Operand 30912 states and 42035 transitions. [2018-10-24 14:02:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-10-24 14:02:04,906 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:02:04,907 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:02:04,907 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:02:04,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:02:04,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1246105413, now seen corresponding path program 1 times [2018-10-24 14:02:04,907 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:02:04,908 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:02:04,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:04,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:04,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:05,439 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 14:02:05,829 WARN L179 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-10-24 14:02:06,130 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 21 [2018-10-24 14:02:06,599 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 53 proven. 6 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2018-10-24 14:02:06,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:02:06,600 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 14:02:06,611 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:06,783 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:02:07,079 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-10-24 14:02:07,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:02:07,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2018-10-24 14:02:07,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:02:07,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:02:07,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:02:07,102 INFO L87 Difference]: Start difference. First operand 30912 states and 42035 transitions. Second operand 8 states. [2018-10-24 14:02:28,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:02:28,237 INFO L93 Difference]: Finished difference Result 118976 states and 162690 transitions. [2018-10-24 14:02:28,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 14:02:28,238 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 426 [2018-10-24 14:02:28,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:02:28,484 INFO L225 Difference]: With dead ends: 118976 [2018-10-24 14:02:28,484 INFO L226 Difference]: Without dead ends: 88818 [2018-10-24 14:02:28,529 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 426 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-10-24 14:02:28,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88818 states. [2018-10-24 14:02:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88818 to 87312. [2018-10-24 14:02:29,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87312 states. [2018-10-24 14:02:29,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87312 states to 87312 states and 110003 transitions. [2018-10-24 14:02:29,986 INFO L78 Accepts]: Start accepts. Automaton has 87312 states and 110003 transitions. Word has length 426 [2018-10-24 14:02:29,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:02:29,987 INFO L481 AbstractCegarLoop]: Abstraction has 87312 states and 110003 transitions. [2018-10-24 14:02:29,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:02:29,987 INFO L276 IsEmpty]: Start isEmpty. Operand 87312 states and 110003 transitions. [2018-10-24 14:02:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2018-10-24 14:02:30,033 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:02:30,033 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:02:30,034 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:02:30,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:02:30,034 INFO L82 PathProgramCache]: Analyzing trace with hash 2072570514, now seen corresponding path program 1 times [2018-10-24 14:02:30,035 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:02:30,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:02:30,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:30,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:30,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:30,596 WARN L179 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2018-10-24 14:02:30,919 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 9 [2018-10-24 14:02:31,184 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 223 proven. 5 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-10-24 14:02:31,184 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:02:31,184 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 14:02:31,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:31,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:02:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-10-24 14:02:31,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:02:31,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2018-10-24 14:02:31,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:02:31,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:02:31,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:02:31,573 INFO L87 Difference]: Start difference. First operand 87312 states and 110003 transitions. Second operand 6 states. [2018-10-24 14:02:50,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:02:50,296 INFO L93 Difference]: Finished difference Result 217510 states and 268638 transitions. [2018-10-24 14:02:50,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 14:02:50,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 464 [2018-10-24 14:02:50,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:02:50,463 INFO L225 Difference]: With dead ends: 217510 [2018-10-24 14:02:50,463 INFO L226 Difference]: Without dead ends: 127940 [2018-10-24 14:02:50,537 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 465 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:02:50,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127940 states. [2018-10-24 14:02:51,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127940 to 100092. [2018-10-24 14:02:51,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100092 states. [2018-10-24 14:02:51,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100092 states to 100092 states and 118806 transitions. [2018-10-24 14:02:51,483 INFO L78 Accepts]: Start accepts. Automaton has 100092 states and 118806 transitions. Word has length 464 [2018-10-24 14:02:51,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:02:51,483 INFO L481 AbstractCegarLoop]: Abstraction has 100092 states and 118806 transitions. [2018-10-24 14:02:51,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:02:51,483 INFO L276 IsEmpty]: Start isEmpty. Operand 100092 states and 118806 transitions. [2018-10-24 14:02:51,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2018-10-24 14:02:51,517 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:02:51,517 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:02:51,518 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:02:51,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:02:51,518 INFO L82 PathProgramCache]: Analyzing trace with hash -189612147, now seen corresponding path program 1 times [2018-10-24 14:02:51,518 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:02:51,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:02:51,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:51,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:51,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:02:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:52,495 WARN L179 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 14:02:52,636 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 295 proven. 67 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-10-24 14:02:52,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:02:52,637 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 14:02:52,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:02:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:02:52,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:02:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-10-24 14:02:53,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:02:53,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-24 14:02:53,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:02:53,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:02:53,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:02:53,008 INFO L87 Difference]: Start difference. First operand 100092 states and 118806 transitions. Second operand 5 states. [2018-10-24 14:03:07,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:03:07,688 INFO L93 Difference]: Finished difference Result 252070 states and 300081 transitions. [2018-10-24 14:03:07,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:03:07,689 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 538 [2018-10-24 14:03:07,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:03:07,861 INFO L225 Difference]: With dead ends: 252070 [2018-10-24 14:03:07,861 INFO L226 Difference]: Without dead ends: 152732 [2018-10-24 14:03:07,913 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 537 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:03:08,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152732 states. [2018-10-24 14:03:09,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152732 to 134671. [2018-10-24 14:03:09,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134671 states. [2018-10-24 14:03:09,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134671 states to 134671 states and 149940 transitions. [2018-10-24 14:03:09,195 INFO L78 Accepts]: Start accepts. Automaton has 134671 states and 149940 transitions. Word has length 538 [2018-10-24 14:03:09,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:03:09,195 INFO L481 AbstractCegarLoop]: Abstraction has 134671 states and 149940 transitions. [2018-10-24 14:03:09,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:03:09,195 INFO L276 IsEmpty]: Start isEmpty. Operand 134671 states and 149940 transitions. [2018-10-24 14:03:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2018-10-24 14:03:09,217 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:03:09,217 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:03:09,218 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:03:09,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:03:09,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1408941254, now seen corresponding path program 1 times [2018-10-24 14:03:09,218 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:03:09,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:03:09,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:09,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:03:09,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:03:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2018-10-24 14:03:10,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:03:10,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:03:10,107 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:03:10,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:03:10,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:03:10,107 INFO L87 Difference]: Start difference. First operand 134671 states and 149940 transitions. Second operand 5 states. [2018-10-24 14:03:21,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:03:21,769 INFO L93 Difference]: Finished difference Result 382932 states and 427396 transitions. [2018-10-24 14:03:21,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:03:21,770 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 542 [2018-10-24 14:03:21,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:03:22,148 INFO L225 Difference]: With dead ends: 382932 [2018-10-24 14:03:22,148 INFO L226 Difference]: Without dead ends: 249015 [2018-10-24 14:03:22,261 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:03:22,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249015 states. [2018-10-24 14:03:25,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249015 to 189607. [2018-10-24 14:03:25,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189607 states. [2018-10-24 14:03:26,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189607 states to 189607 states and 206086 transitions. [2018-10-24 14:03:26,113 INFO L78 Accepts]: Start accepts. Automaton has 189607 states and 206086 transitions. Word has length 542 [2018-10-24 14:03:26,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:03:26,114 INFO L481 AbstractCegarLoop]: Abstraction has 189607 states and 206086 transitions. [2018-10-24 14:03:26,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:03:26,114 INFO L276 IsEmpty]: Start isEmpty. Operand 189607 states and 206086 transitions. [2018-10-24 14:03:26,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2018-10-24 14:03:26,146 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:03:26,146 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:03:26,147 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:03:26,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:03:26,148 INFO L82 PathProgramCache]: Analyzing trace with hash -431863755, now seen corresponding path program 1 times [2018-10-24 14:03:26,148 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:03:26,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:03:26,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:26,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:03:26,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:03:26,701 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 517 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-10-24 14:03:26,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:03:26,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:03:26,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:03:26,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:03:26,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:03:26,703 INFO L87 Difference]: Start difference. First operand 189607 states and 206086 transitions. Second operand 3 states. [2018-10-24 14:03:33,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:03:33,876 INFO L93 Difference]: Finished difference Result 378460 states and 411413 transitions. [2018-10-24 14:03:33,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:03:33,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 595 [2018-10-24 14:03:33,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:03:34,081 INFO L225 Difference]: With dead ends: 378460 [2018-10-24 14:03:34,082 INFO L226 Difference]: Without dead ends: 189607 [2018-10-24 14:03:34,176 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:03:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189607 states. [2018-10-24 14:03:37,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189607 to 185847. [2018-10-24 14:03:37,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185847 states. [2018-10-24 14:03:37,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185847 states to 185847 states and 197257 transitions. [2018-10-24 14:03:37,211 INFO L78 Accepts]: Start accepts. Automaton has 185847 states and 197257 transitions. Word has length 595 [2018-10-24 14:03:37,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:03:37,211 INFO L481 AbstractCegarLoop]: Abstraction has 185847 states and 197257 transitions. [2018-10-24 14:03:37,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:03:37,212 INFO L276 IsEmpty]: Start isEmpty. Operand 185847 states and 197257 transitions. [2018-10-24 14:03:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2018-10-24 14:03:37,245 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:03:37,246 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:03:37,246 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:03:37,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:03:37,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1910892677, now seen corresponding path program 1 times [2018-10-24 14:03:37,247 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:03:37,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:03:37,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:37,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:03:37,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:37,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:03:37,843 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 14:03:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 436 proven. 0 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-10-24 14:03:39,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:03:39,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:03:39,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:03:39,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:03:39,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:03:39,839 INFO L87 Difference]: Start difference. First operand 185847 states and 197257 transitions. Second operand 4 states. [2018-10-24 14:03:50,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:03:50,163 INFO L93 Difference]: Finished difference Result 385980 states and 409469 transitions. [2018-10-24 14:03:50,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:03:50,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 627 [2018-10-24 14:03:50,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:03:50,425 INFO L225 Difference]: With dead ends: 385980 [2018-10-24 14:03:50,425 INFO L226 Difference]: Without dead ends: 192603 [2018-10-24 14:03:50,514 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:03:50,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192603 states. [2018-10-24 14:03:57,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192603 to 191099. [2018-10-24 14:03:57,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191099 states. [2018-10-24 14:03:57,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191099 states to 191099 states and 201475 transitions. [2018-10-24 14:03:57,554 INFO L78 Accepts]: Start accepts. Automaton has 191099 states and 201475 transitions. Word has length 627 [2018-10-24 14:03:57,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:03:57,555 INFO L481 AbstractCegarLoop]: Abstraction has 191099 states and 201475 transitions. [2018-10-24 14:03:57,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:03:57,556 INFO L276 IsEmpty]: Start isEmpty. Operand 191099 states and 201475 transitions. [2018-10-24 14:03:58,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-10-24 14:03:58,094 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:03:58,095 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:03:58,095 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:03:58,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:03:58,096 INFO L82 PathProgramCache]: Analyzing trace with hash -2119849571, now seen corresponding path program 1 times [2018-10-24 14:03:58,096 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:03:58,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:03:58,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:58,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:03:58,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:03:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:03:58,546 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 601 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-10-24 14:03:58,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:03:58,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:03:58,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:03:58,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:03:58,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:03:58,548 INFO L87 Difference]: Start difference. First operand 191099 states and 201475 transitions. Second operand 3 states. [2018-10-24 14:04:05,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:04:05,254 INFO L93 Difference]: Finished difference Result 437089 states and 461054 transitions. [2018-10-24 14:04:05,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:04:05,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 629 [2018-10-24 14:04:05,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:04:05,562 INFO L225 Difference]: With dead ends: 437089 [2018-10-24 14:04:05,562 INFO L226 Difference]: Without dead ends: 246744 [2018-10-24 14:04:05,671 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 14:04:05,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246744 states. [2018-10-24 14:04:08,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246744 to 239224. [2018-10-24 14:04:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239224 states. [2018-10-24 14:04:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239224 states to 239224 states and 251486 transitions. [2018-10-24 14:04:08,985 INFO L78 Accepts]: Start accepts. Automaton has 239224 states and 251486 transitions. Word has length 629 [2018-10-24 14:04:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:04:08,986 INFO L481 AbstractCegarLoop]: Abstraction has 239224 states and 251486 transitions. [2018-10-24 14:04:08,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:04:08,986 INFO L276 IsEmpty]: Start isEmpty. Operand 239224 states and 251486 transitions. [2018-10-24 14:04:09,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2018-10-24 14:04:09,014 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:04:09,014 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:04:09,014 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:04:09,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:04:09,015 INFO L82 PathProgramCache]: Analyzing trace with hash -930823255, now seen corresponding path program 1 times [2018-10-24 14:04:09,015 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:04:09,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:04:09,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:09,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:04:09,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:04:10,137 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 644 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-10-24 14:04:10,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:04:10,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:04:10,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:04:10,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:04:10,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:04:10,139 INFO L87 Difference]: Start difference. First operand 239224 states and 251486 transitions. Second operand 3 states. [2018-10-24 14:04:18,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:04:18,801 INFO L93 Difference]: Finished difference Result 494238 states and 520294 transitions. [2018-10-24 14:04:18,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:04:18,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 656 [2018-10-24 14:04:18,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:04:19,102 INFO L225 Difference]: With dead ends: 494238 [2018-10-24 14:04:19,103 INFO L226 Difference]: Without dead ends: 255768 [2018-10-24 14:04:19,215 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 14:04:19,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255768 states. [2018-10-24 14:04:22,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255768 to 252008. [2018-10-24 14:04:22,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252008 states. [2018-10-24 14:04:23,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252008 states to 252008 states and 263360 transitions. [2018-10-24 14:04:23,005 INFO L78 Accepts]: Start accepts. Automaton has 252008 states and 263360 transitions. Word has length 656 [2018-10-24 14:04:23,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:04:23,005 INFO L481 AbstractCegarLoop]: Abstraction has 252008 states and 263360 transitions. [2018-10-24 14:04:23,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:04:23,006 INFO L276 IsEmpty]: Start isEmpty. Operand 252008 states and 263360 transitions. [2018-10-24 14:04:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 681 [2018-10-24 14:04:23,035 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:04:23,035 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2018-10-24 14:04:23,035 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:04:23,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:04:23,036 INFO L82 PathProgramCache]: Analyzing trace with hash -18889263, now seen corresponding path program 1 times [2018-10-24 14:04:23,036 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:04:23,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:04:23,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:23,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:04:23,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:04:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:04:24,624 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 703 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-10-24 14:04:24,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:04:24,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:04:24,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:04:24,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:04:24,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:04:24,630 INFO L87 Difference]: Start difference. First operand 252008 states and 263360 transitions. Second operand 4 states. [2018-10-24 14:04:34,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:04:34,028 INFO L93 Difference]: Finished difference Result 497989 states and 520612 transitions. [2018-10-24 14:04:34,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:04:34,029 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 680 [2018-10-24 14:04:34,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:04:34,344 INFO L225 Difference]: With dead ends: 497989 [2018-10-24 14:04:34,344 INFO L226 Difference]: Without dead ends: 245229 [2018-10-24 14:04:34,470 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 14:04:34,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245229 states. Received shutdown request... [2018-10-24 14:04:40,073 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:04:40,077 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:04:40,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:04:40 BoogieIcfgContainer [2018-10-24 14:04:40,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:04:40,079 INFO L168 Benchmark]: Toolchain (without parser) took 225201.66 ms. Allocated memory was 1.6 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 4.1 GB in the end (delta: -2.6 GB). Peak memory consumption was 3.5 GB. Max. memory is 7.1 GB. [2018-10-24 14:04:40,080 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:04:40,080 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2810.19 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:40,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 725.66 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 821.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:40,085 INFO L168 Benchmark]: Boogie Preprocessor took 449.56 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:40,086 INFO L168 Benchmark]: RCFGBuilder took 8454.16 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 207.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -163.4 MB). Peak memory consumption was 624.4 MB. Max. memory is 7.1 GB. [2018-10-24 14:04:40,087 INFO L168 Benchmark]: TraceAbstraction took 212757.38 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-10-24 14:04:40,096 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2810.19 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 725.66 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 821.0 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 449.56 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8454.16 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 207.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -163.4 MB). Peak memory consumption was 624.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212757.38 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 93). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 212.6s OverallTime, 14 OverallIterations, 5 TraceHistogramMax, 165.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8410 SDtfs, 34935 SDslu, 1328 SDs, 0 SdLazy, 69606 SolverSat, 13817 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 128.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1501 GetRequests, 1447 SyntacticMatches, 14 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 4.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252008occurred in iteration=13, 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: 31.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 125701 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 7588 NumberOfCodeBlocks, 7588 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7571 ConstructedInterpolants, 0 QuantifiedInterpolants, 9066344 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1758 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 6264/6342 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown