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/Problem18_label26_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:57:41,548 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:57:41,550 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:57:41,561 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:57:41,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:57:41,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:57:41,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:57:41,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:57:41,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:57:41,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:57:41,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:57:41,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:57:41,570 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:57:41,571 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:57:41,573 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:57:41,573 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:57:41,574 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:57:41,576 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:57:41,578 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:57:41,580 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:57:41,581 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:57:41,582 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:57:41,584 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 16:57:41,593 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 16:57:41,615 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:57:41,615 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:57:41,616 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:57:41,616 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:57:41,617 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:57:41,617 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:57:41,617 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:57:41,617 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:57:41,617 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:57:41,618 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:57:41,618 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:57:41,618 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:57:41,618 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:57:41,618 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:57:41,619 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:57:41,619 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:57:41,619 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:57:41,619 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:57:41,619 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:57:41,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:57:41,620 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:57:41,620 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:57:41,620 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:57:41,620 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:57:41,620 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:57:41,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:57:41,621 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:57:41,621 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:57:41,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:57:41,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:57:41,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:57:41,691 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:57:41,691 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:57:41,692 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label26_true-unreach-call.c [2018-10-24 16:57:41,766 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/27b523761/84a5586d303e4a44a2ef73fddb7b06a2/FLAGa40f05d8a [2018-10-24 16:57:42,552 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:57:42,553 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label26_true-unreach-call.c [2018-10-24 16:57:42,579 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/27b523761/84a5586d303e4a44a2ef73fddb7b06a2/FLAGa40f05d8a [2018-10-24 16:57:42,595 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/27b523761/84a5586d303e4a44a2ef73fddb7b06a2 [2018-10-24 16:57:42,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:57:42,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:57:42,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:57:42,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:57:42,617 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:57:42,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:57:42" (1/1) ... [2018-10-24 16:57:42,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1986afa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:42, skipping insertion in model container [2018-10-24 16:57:42,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:57:42" (1/1) ... [2018-10-24 16:57:42,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:57:42,782 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:57:43,933 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:57:43,938 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:57:44,500 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:57:44,530 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:57:44,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44 WrapperNode [2018-10-24 16:57:44,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:57:44,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:57:44,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:57:44,532 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:57:44,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (1/1) ... [2018-10-24 16:57:44,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (1/1) ... [2018-10-24 16:57:44,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:57:44,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:57:44,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:57:44,989 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:57:45,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (1/1) ... [2018-10-24 16:57:45,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (1/1) ... [2018-10-24 16:57:45,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (1/1) ... [2018-10-24 16:57:45,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (1/1) ... [2018-10-24 16:57:45,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (1/1) ... [2018-10-24 16:57:45,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (1/1) ... [2018-10-24 16:57:45,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (1/1) ... [2018-10-24 16:57:45,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:57:45,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:57:45,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:57:45,207 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:57:45,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (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 16:57:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:57:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:57:45,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:57:54,932 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:57:54,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:57:54 BoogieIcfgContainer [2018-10-24 16:57:54,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:57:54,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:57:54,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:57:54,938 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:57:54,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:57:42" (1/3) ... [2018-10-24 16:57:54,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a6a193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:57:54, skipping insertion in model container [2018-10-24 16:57:54,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:57:44" (2/3) ... [2018-10-24 16:57:54,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a6a193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:57:54, skipping insertion in model container [2018-10-24 16:57:54,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:57:54" (3/3) ... [2018-10-24 16:57:54,942 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label26_true-unreach-call.c [2018-10-24 16:57:54,952 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:57:54,961 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:57:54,979 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:57:55,024 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:57:55,024 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:57:55,025 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:57:55,025 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:57:55,025 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:57:55,025 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:57:55,025 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:57:55,026 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:57:55,026 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:57:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2018-10-24 16:57:55,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-24 16:57:55,077 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:57:55,078 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:57:55,081 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:57:55,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:57:55,086 INFO L82 PathProgramCache]: Analyzing trace with hash 265969354, now seen corresponding path program 1 times [2018-10-24 16:57:55,088 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:57:55,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:57:55,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:55,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:57:55,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:57:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:57:55,577 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 16:57:55,808 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 16:57:55,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:57:55,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:57:55,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:57:55,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:57:55,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:57:55,836 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 4 states. [2018-10-24 16:58:08,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:08,964 INFO L93 Difference]: Finished difference Result 3599 states and 7034 transitions. [2018-10-24 16:58:08,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:58:08,967 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-10-24 16:58:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:09,014 INFO L225 Difference]: With dead ends: 3599 [2018-10-24 16:58:09,015 INFO L226 Difference]: Without dead ends: 2831 [2018-10-24 16:58:09,023 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:58:09,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2831 states. [2018-10-24 16:58:09,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2831 to 2831. [2018-10-24 16:58:09,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2831 states. [2018-10-24 16:58:09,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2831 states to 2831 states and 4101 transitions. [2018-10-24 16:58:09,196 INFO L78 Accepts]: Start accepts. Automaton has 2831 states and 4101 transitions. Word has length 63 [2018-10-24 16:58:09,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:09,197 INFO L481 AbstractCegarLoop]: Abstraction has 2831 states and 4101 transitions. [2018-10-24 16:58:09,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:09,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2831 states and 4101 transitions. [2018-10-24 16:58:09,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-24 16:58:09,210 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:09,210 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:09,211 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:09,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:09,211 INFO L82 PathProgramCache]: Analyzing trace with hash -577281741, now seen corresponding path program 1 times [2018-10-24 16:58:09,211 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:09,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:09,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:09,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:09,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:10,143 WARN L179 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 18 [2018-10-24 16:58:10,332 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 11 [2018-10-24 16:58:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2018-10-24 16:58:10,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:10,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:10,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:58:10,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:58:10,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:58:10,430 INFO L87 Difference]: Start difference. First operand 2831 states and 4101 transitions. Second operand 5 states. [2018-10-24 16:58:21,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:21,766 INFO L93 Difference]: Finished difference Result 8424 states and 12649 transitions. [2018-10-24 16:58:21,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:58:21,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 225 [2018-10-24 16:58:21,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:21,796 INFO L225 Difference]: With dead ends: 8424 [2018-10-24 16:58:21,796 INFO L226 Difference]: Without dead ends: 5595 [2018-10-24 16:58:21,803 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:58:21,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5595 states. [2018-10-24 16:58:21,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5595 to 5595. [2018-10-24 16:58:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5595 states. [2018-10-24 16:58:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 7136 transitions. [2018-10-24 16:58:21,916 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 7136 transitions. Word has length 225 [2018-10-24 16:58:21,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:21,917 INFO L481 AbstractCegarLoop]: Abstraction has 5595 states and 7136 transitions. [2018-10-24 16:58:21,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:58:21,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 7136 transitions. [2018-10-24 16:58:21,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-24 16:58:21,924 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:21,925 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:21,925 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:21,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:21,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1197458537, now seen corresponding path program 1 times [2018-10-24 16:58:21,926 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:21,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:21,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:21,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:21,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:22,406 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 121 proven. 4 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-10-24 16:58:22,407 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:58:22,407 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 16:58:22,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:22,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:58:22,784 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:58:22,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:58:22,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 16:58:22,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:22,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:22,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:22,822 INFO L87 Difference]: Start difference. First operand 5595 states and 7136 transitions. Second operand 4 states. [2018-10-24 16:58:30,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:30,442 INFO L93 Difference]: Finished difference Result 16041 states and 21992 transitions. [2018-10-24 16:58:30,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:30,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-10-24 16:58:30,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:30,495 INFO L225 Difference]: With dead ends: 16041 [2018-10-24 16:58:30,495 INFO L226 Difference]: Without dead ends: 11139 [2018-10-24 16:58:30,505 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 314 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 16:58:30,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11139 states. [2018-10-24 16:58:30,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11139 to 7668. [2018-10-24 16:58:30,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7668 states. [2018-10-24 16:58:30,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7668 states to 7668 states and 9572 transitions. [2018-10-24 16:58:30,674 INFO L78 Accepts]: Start accepts. Automaton has 7668 states and 9572 transitions. Word has length 314 [2018-10-24 16:58:30,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:30,675 INFO L481 AbstractCegarLoop]: Abstraction has 7668 states and 9572 transitions. [2018-10-24 16:58:30,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:30,675 INFO L276 IsEmpty]: Start isEmpty. Operand 7668 states and 9572 transitions. [2018-10-24 16:58:30,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-10-24 16:58:30,683 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:30,683 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:30,683 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:30,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:30,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1900254716, now seen corresponding path program 1 times [2018-10-24 16:58:30,684 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:30,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:30,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:30,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:30,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:31,447 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 198 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-24 16:58:31,448 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:58:31,448 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 16:58:31,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:31,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:58:31,686 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2018-10-24 16:58:31,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:58:31,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-24 16:58:31,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 16:58:31,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 16:58:31,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 16:58:31,709 INFO L87 Difference]: Start difference. First operand 7668 states and 9572 transitions. Second operand 6 states. [2018-10-24 16:58:41,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:41,971 INFO L93 Difference]: Finished difference Result 23637 states and 30091 transitions. [2018-10-24 16:58:41,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 16:58:41,972 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 337 [2018-10-24 16:58:41,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:42,033 INFO L225 Difference]: With dead ends: 23637 [2018-10-24 16:58:42,033 INFO L226 Difference]: Without dead ends: 15278 [2018-10-24 16:58:42,046 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 336 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:58:42,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15278 states. [2018-10-24 16:58:42,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15278 to 11813. [2018-10-24 16:58:42,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11813 states. [2018-10-24 16:58:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11813 states to 11813 states and 13144 transitions. [2018-10-24 16:58:42,296 INFO L78 Accepts]: Start accepts. Automaton has 11813 states and 13144 transitions. Word has length 337 [2018-10-24 16:58:42,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:42,297 INFO L481 AbstractCegarLoop]: Abstraction has 11813 states and 13144 transitions. [2018-10-24 16:58:42,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 16:58:42,297 INFO L276 IsEmpty]: Start isEmpty. Operand 11813 states and 13144 transitions. [2018-10-24 16:58:42,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2018-10-24 16:58:42,340 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:42,341 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:42,341 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:42,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:42,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1698754471, now seen corresponding path program 1 times [2018-10-24 16:58:42,342 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:42,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:42,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:42,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:42,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:43,167 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 16:58:43,938 INFO L134 CoverageAnalysis]: Checked inductivity of 931 backedges. 487 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2018-10-24 16:58:43,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:43,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:43,940 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:43,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:43,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:43,941 INFO L87 Difference]: Start difference. First operand 11813 states and 13144 transitions. Second operand 4 states. [2018-10-24 16:58:49,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:58:49,750 INFO L93 Difference]: Finished difference Result 28476 states and 33059 transitions. [2018-10-24 16:58:49,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:58:49,751 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1038 [2018-10-24 16:58:49,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:58:49,798 INFO L225 Difference]: With dead ends: 28476 [2018-10-24 16:58:49,798 INFO L226 Difference]: Without dead ends: 17356 [2018-10-24 16:58:49,814 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:49,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17356 states. [2018-10-24 16:58:50,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17356 to 14577. [2018-10-24 16:58:50,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14577 states. [2018-10-24 16:58:50,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14577 states to 14577 states and 16291 transitions. [2018-10-24 16:58:50,030 INFO L78 Accepts]: Start accepts. Automaton has 14577 states and 16291 transitions. Word has length 1038 [2018-10-24 16:58:50,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:58:50,032 INFO L481 AbstractCegarLoop]: Abstraction has 14577 states and 16291 transitions. [2018-10-24 16:58:50,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:58:50,032 INFO L276 IsEmpty]: Start isEmpty. Operand 14577 states and 16291 transitions. [2018-10-24 16:58:50,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2018-10-24 16:58:50,078 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:58:50,079 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:58:50,079 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:58:50,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:58:50,080 INFO L82 PathProgramCache]: Analyzing trace with hash -77246678, now seen corresponding path program 1 times [2018-10-24 16:58:50,080 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:58:50,080 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:58:50,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:50,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:58:50,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:58:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:58:50,743 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 12 [2018-10-24 16:58:51,279 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 472 trivial. 0 not checked. [2018-10-24 16:58:51,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:58:51,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:58:51,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:58:51,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:58:51,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:58:51,281 INFO L87 Difference]: Start difference. First operand 14577 states and 16291 transitions. Second operand 4 states. [2018-10-24 16:59:00,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:59:00,044 INFO L93 Difference]: Finished difference Result 49882 states and 56668 transitions. [2018-10-24 16:59:00,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:59:00,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1052 [2018-10-24 16:59:00,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:59:00,100 INFO L225 Difference]: With dead ends: 49882 [2018-10-24 16:59:00,100 INFO L226 Difference]: Without dead ends: 35998 [2018-10-24 16:59:00,120 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:59:00,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35998 states. [2018-10-24 16:59:00,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35998 to 35307. [2018-10-24 16:59:00,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35307 states. [2018-10-24 16:59:00,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35307 states to 35307 states and 38772 transitions. [2018-10-24 16:59:00,523 INFO L78 Accepts]: Start accepts. Automaton has 35307 states and 38772 transitions. Word has length 1052 [2018-10-24 16:59:00,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:59:00,525 INFO L481 AbstractCegarLoop]: Abstraction has 35307 states and 38772 transitions. [2018-10-24 16:59:00,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:59:00,525 INFO L276 IsEmpty]: Start isEmpty. Operand 35307 states and 38772 transitions. [2018-10-24 16:59:00,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2018-10-24 16:59:00,553 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:59:00,558 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:00,560 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:59:00,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:59:00,560 INFO L82 PathProgramCache]: Analyzing trace with hash -519054123, now seen corresponding path program 1 times [2018-10-24 16:59:00,561 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:59:00,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:59:00,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:00,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:00,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:01,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 854 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2018-10-24 16:59:01,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:59:01,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:59:01,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:59:01,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:59:01,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:59:01,797 INFO L87 Difference]: Start difference. First operand 35307 states and 38772 transitions. Second operand 4 states. [2018-10-24 16:59:07,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:59:07,423 INFO L93 Difference]: Finished difference Result 78904 states and 87225 transitions. [2018-10-24 16:59:07,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:59:07,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1179 [2018-10-24 16:59:07,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:59:07,496 INFO L225 Difference]: With dead ends: 78904 [2018-10-24 16:59:07,497 INFO L226 Difference]: Without dead ends: 44290 [2018-10-24 16:59:07,532 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:59:07,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44290 states. [2018-10-24 16:59:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44290 to 43599. [2018-10-24 16:59:07,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43599 states. [2018-10-24 16:59:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43599 states to 43599 states and 47211 transitions. [2018-10-24 16:59:08,031 INFO L78 Accepts]: Start accepts. Automaton has 43599 states and 47211 transitions. Word has length 1179 [2018-10-24 16:59:08,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:59:08,033 INFO L481 AbstractCegarLoop]: Abstraction has 43599 states and 47211 transitions. [2018-10-24 16:59:08,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:59:08,033 INFO L276 IsEmpty]: Start isEmpty. Operand 43599 states and 47211 transitions. [2018-10-24 16:59:08,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1194 [2018-10-24 16:59:08,066 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:59:08,067 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:08,067 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:59:08,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:59:08,068 INFO L82 PathProgramCache]: Analyzing trace with hash -733398478, now seen corresponding path program 1 times [2018-10-24 16:59:08,068 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:59:08,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:59:08,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:08,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:08,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2018-10-24 16:59:09,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:59:09,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:59:09,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:59:09,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:59:09,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:59:09,680 INFO L87 Difference]: Start difference. First operand 43599 states and 47211 transitions. Second operand 3 states. [2018-10-24 16:59:12,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:59:12,930 INFO L93 Difference]: Finished difference Result 86505 states and 93728 transitions. [2018-10-24 16:59:12,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:59:12,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1193 [2018-10-24 16:59:12,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:59:12,984 INFO L225 Difference]: With dead ends: 86505 [2018-10-24 16:59:12,984 INFO L226 Difference]: Without dead ends: 43599 [2018-10-24 16:59:13,011 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 16:59:13,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43599 states. [2018-10-24 16:59:13,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43599 to 43599. [2018-10-24 16:59:13,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43599 states. [2018-10-24 16:59:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43599 states to 43599 states and 46514 transitions. [2018-10-24 16:59:13,451 INFO L78 Accepts]: Start accepts. Automaton has 43599 states and 46514 transitions. Word has length 1193 [2018-10-24 16:59:13,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:59:13,452 INFO L481 AbstractCegarLoop]: Abstraction has 43599 states and 46514 transitions. [2018-10-24 16:59:13,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:59:13,452 INFO L276 IsEmpty]: Start isEmpty. Operand 43599 states and 46514 transitions. [2018-10-24 16:59:13,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1282 [2018-10-24 16:59:13,487 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:59:13,488 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:13,488 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:59:13,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:59:13,490 INFO L82 PathProgramCache]: Analyzing trace with hash 844390392, now seen corresponding path program 1 times [2018-10-24 16:59:13,490 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:59:13,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:59:13,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:13,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:13,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:14,726 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 16:59:15,056 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-10-24 16:59:15,503 WARN L179 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 18 [2018-10-24 16:59:15,845 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 4 [2018-10-24 16:59:18,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 706 proven. 697 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-10-24 16:59:18,283 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:59:18,283 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 16:59:18,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:18,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:59:19,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 915 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2018-10-24 16:59:19,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:59:19,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2018-10-24 16:59:19,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 16:59:19,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 16:59:19,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-10-24 16:59:19,573 INFO L87 Difference]: Start difference. First operand 43599 states and 46514 transitions. Second operand 10 states. [2018-10-24 16:59:42,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:59:42,778 INFO L93 Difference]: Finished difference Result 219947 states and 236540 transitions. [2018-10-24 16:59:42,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 16:59:42,778 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1281 [2018-10-24 16:59:42,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:59:42,929 INFO L225 Difference]: With dead ends: 219947 [2018-10-24 16:59:42,929 INFO L226 Difference]: Without dead ends: 136342 [2018-10-24 16:59:42,981 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1315 GetRequests, 1293 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2018-10-24 16:59:43,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136342 states. [2018-10-24 16:59:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136342 to 55310. [2018-10-24 16:59:43,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55310 states. [2018-10-24 16:59:43,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55310 states to 55310 states and 57453 transitions. [2018-10-24 16:59:43,993 INFO L78 Accepts]: Start accepts. Automaton has 55310 states and 57453 transitions. Word has length 1281 [2018-10-24 16:59:43,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:59:43,994 INFO L481 AbstractCegarLoop]: Abstraction has 55310 states and 57453 transitions. [2018-10-24 16:59:43,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 16:59:43,994 INFO L276 IsEmpty]: Start isEmpty. Operand 55310 states and 57453 transitions. [2018-10-24 16:59:44,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1499 [2018-10-24 16:59:44,042 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:59:44,043 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:59:44,043 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:59:44,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:59:44,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1841339624, now seen corresponding path program 1 times [2018-10-24 16:59:44,044 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:59:44,044 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:59:44,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:44,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:44,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:46,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2501 backedges. 1697 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2018-10-24 16:59:46,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:59:46,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:59:46,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:59:46,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:59:46,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:59:46,255 INFO L87 Difference]: Start difference. First operand 55310 states and 57453 transitions. Second operand 4 states. [2018-10-24 16:59:50,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:59:50,711 INFO L93 Difference]: Finished difference Result 112691 states and 117187 transitions. [2018-10-24 16:59:50,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:59:50,712 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1498 [2018-10-24 16:59:50,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:59:50,768 INFO L225 Difference]: With dead ends: 112691 [2018-10-24 16:59:50,768 INFO L226 Difference]: Without dead ends: 58074 [2018-10-24 16:59:50,798 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:59:50,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58074 states. [2018-10-24 16:59:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58074 to 57383. [2018-10-24 16:59:51,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57383 states. [2018-10-24 16:59:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57383 states to 57383 states and 59242 transitions. [2018-10-24 16:59:51,274 INFO L78 Accepts]: Start accepts. Automaton has 57383 states and 59242 transitions. Word has length 1498 [2018-10-24 16:59:51,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:59:51,274 INFO L481 AbstractCegarLoop]: Abstraction has 57383 states and 59242 transitions. [2018-10-24 16:59:51,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:59:51,275 INFO L276 IsEmpty]: Start isEmpty. Operand 57383 states and 59242 transitions. [2018-10-24 16:59:51,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1552 [2018-10-24 16:59:51,308 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:59:51,309 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:59:51,310 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:59:51,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:59:51,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1708948075, now seen corresponding path program 1 times [2018-10-24 16:59:51,310 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:59:51,310 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:59:51,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:51,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:51,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:59:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:52,592 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-10-24 16:59:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2713 backedges. 1867 proven. 499 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2018-10-24 16:59:56,815 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:59:56,815 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:59:56,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:59:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:59:57,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:59:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2713 backedges. 1146 proven. 0 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2018-10-24 16:59:59,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:59:59,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 12 [2018-10-24 16:59:59,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 16:59:59,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 16:59:59,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-10-24 16:59:59,280 INFO L87 Difference]: Start difference. First operand 57383 states and 59242 transitions. Second operand 13 states. [2018-10-24 17:00:16,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:16,448 INFO L93 Difference]: Finished difference Result 118069 states and 121832 transitions. [2018-10-24 17:00:16,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 17:00:16,448 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1551 [2018-10-24 17:00:16,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:16,501 INFO L225 Difference]: With dead ends: 118069 [2018-10-24 17:00:16,501 INFO L226 Difference]: Without dead ends: 57225 [2018-10-24 17:00:16,529 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1575 GetRequests, 1551 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=198, Invalid=452, Unknown=0, NotChecked=0, Total=650 [2018-10-24 17:00:16,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57225 states. [2018-10-24 17:00:17,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57225 to 53229. [2018-10-24 17:00:17,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53229 states. [2018-10-24 17:00:17,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53229 states to 53229 states and 54838 transitions. [2018-10-24 17:00:17,115 INFO L78 Accepts]: Start accepts. Automaton has 53229 states and 54838 transitions. Word has length 1551 [2018-10-24 17:00:17,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:00:17,116 INFO L481 AbstractCegarLoop]: Abstraction has 53229 states and 54838 transitions. [2018-10-24 17:00:17,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-24 17:00:17,116 INFO L276 IsEmpty]: Start isEmpty. Operand 53229 states and 54838 transitions. [2018-10-24 17:00:17,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1596 [2018-10-24 17:00:17,145 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:00:17,145 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:00:17,146 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:00:17,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:00:17,146 INFO L82 PathProgramCache]: Analyzing trace with hash 11725508, now seen corresponding path program 1 times [2018-10-24 17:00:17,147 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:00:17,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:00:17,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:17,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:17,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:18,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2395 backedges. 1659 proven. 0 refuted. 0 times theorem prover too weak. 736 trivial. 0 not checked. [2018-10-24 17:00:18,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:00:18,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:00:18,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:00:18,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:00:18,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:00:18,759 INFO L87 Difference]: Start difference. First operand 53229 states and 54838 transitions. Second operand 4 states. [2018-10-24 17:00:23,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:23,093 INFO L93 Difference]: Finished difference Result 116130 states and 119873 transitions. [2018-10-24 17:00:23,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:00:23,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1595 [2018-10-24 17:00:23,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:23,150 INFO L225 Difference]: With dead ends: 116130 [2018-10-24 17:00:23,150 INFO L226 Difference]: Without dead ends: 62901 [2018-10-24 17:00:23,177 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 17:00:23,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62901 states. [2018-10-24 17:00:23,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62901 to 62901. [2018-10-24 17:00:23,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62901 states. [2018-10-24 17:00:23,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62901 states to 62901 states and 64753 transitions. [2018-10-24 17:00:23,672 INFO L78 Accepts]: Start accepts. Automaton has 62901 states and 64753 transitions. Word has length 1595 [2018-10-24 17:00:23,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:00:23,673 INFO L481 AbstractCegarLoop]: Abstraction has 62901 states and 64753 transitions. [2018-10-24 17:00:23,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:00:23,673 INFO L276 IsEmpty]: Start isEmpty. Operand 62901 states and 64753 transitions. [2018-10-24 17:00:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1631 [2018-10-24 17:00:23,965 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:00:23,966 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:00:23,966 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:00:23,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:00:23,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1836318839, now seen corresponding path program 1 times [2018-10-24 17:00:23,967 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:00:23,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:00:23,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:23,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:23,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:25,041 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-10-24 17:00:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3613 backedges. 2104 proven. 1047 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2018-10-24 17:00:28,396 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:00:28,396 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:00:28,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:28,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 17:00:29,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3613 backedges. 2405 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2018-10-24 17:00:29,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 17:00:29,809 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2018-10-24 17:00:29,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 17:00:29,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 17:00:29,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-10-24 17:00:29,812 INFO L87 Difference]: Start difference. First operand 62901 states and 64753 transitions. Second operand 12 states. [2018-10-24 17:00:44,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:44,281 INFO L93 Difference]: Finished difference Result 176568 states and 182255 transitions. [2018-10-24 17:00:44,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-24 17:00:44,281 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 1630 [2018-10-24 17:00:44,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:44,396 INFO L225 Difference]: With dead ends: 176568 [2018-10-24 17:00:44,396 INFO L226 Difference]: Without dead ends: 114360 [2018-10-24 17:00:44,439 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1668 GetRequests, 1641 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=187, Invalid=515, Unknown=0, NotChecked=0, Total=702 [2018-10-24 17:00:44,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114360 states. [2018-10-24 17:00:45,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114360 to 80867. [2018-10-24 17:00:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80867 states. [2018-10-24 17:00:45,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80867 states to 80867 states and 83041 transitions. [2018-10-24 17:00:45,484 INFO L78 Accepts]: Start accepts. Automaton has 80867 states and 83041 transitions. Word has length 1630 [2018-10-24 17:00:45,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:00:45,485 INFO L481 AbstractCegarLoop]: Abstraction has 80867 states and 83041 transitions. [2018-10-24 17:00:45,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 17:00:45,485 INFO L276 IsEmpty]: Start isEmpty. Operand 80867 states and 83041 transitions. [2018-10-24 17:00:45,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1658 [2018-10-24 17:00:45,530 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:00:45,531 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 17:00:45,532 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:00:45,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:00:45,532 INFO L82 PathProgramCache]: Analyzing trace with hash 927804250, now seen corresponding path program 1 times [2018-10-24 17:00:45,532 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:00:45,533 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:00:45,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:45,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:45,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2806 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 2502 trivial. 0 not checked. [2018-10-24 17:00:47,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:00:47,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:00:47,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:00:47,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:00:47,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:00:47,255 INFO L87 Difference]: Start difference. First operand 80867 states and 83041 transitions. Second operand 4 states. [2018-10-24 17:00:52,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:52,104 INFO L93 Difference]: Finished difference Result 163114 states and 167487 transitions. [2018-10-24 17:00:52,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:00:52,104 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1657 [2018-10-24 17:00:52,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:52,180 INFO L225 Difference]: With dead ends: 163114 [2018-10-24 17:00:52,180 INFO L226 Difference]: Without dead ends: 80864 [2018-10-24 17:00:52,210 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 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 17:00:52,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80864 states. [2018-10-24 17:00:52,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80864 to 78791. [2018-10-24 17:00:52,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78791 states. [2018-10-24 17:00:52,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78791 states to 78791 states and 80665 transitions. [2018-10-24 17:00:52,910 INFO L78 Accepts]: Start accepts. Automaton has 78791 states and 80665 transitions. Word has length 1657 [2018-10-24 17:00:52,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:00:52,911 INFO L481 AbstractCegarLoop]: Abstraction has 78791 states and 80665 transitions. [2018-10-24 17:00:52,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:00:52,911 INFO L276 IsEmpty]: Start isEmpty. Operand 78791 states and 80665 transitions. [2018-10-24 17:00:52,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1755 [2018-10-24 17:00:52,957 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:00:52,958 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:00:52,958 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:00:52,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:00:52,959 INFO L82 PathProgramCache]: Analyzing trace with hash 521167279, now seen corresponding path program 1 times [2018-10-24 17:00:52,959 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:00:52,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:00:52,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:52,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:00:52,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:00:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:00:53,866 WARN L179 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 17:00:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2916 backedges. 2229 proven. 0 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2018-10-24 17:00:55,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:00:55,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:00:55,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:00:55,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:00:55,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:00:55,744 INFO L87 Difference]: Start difference. First operand 78791 states and 80665 transitions. Second operand 4 states. [2018-10-24 17:00:59,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:00:59,852 INFO L93 Difference]: Finished difference Result 165872 states and 169795 transitions. [2018-10-24 17:00:59,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:00:59,853 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1754 [2018-10-24 17:00:59,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:00:59,966 INFO L225 Difference]: With dead ends: 165872 [2018-10-24 17:00:59,967 INFO L226 Difference]: Without dead ends: 87082 [2018-10-24 17:01:00,031 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 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 17:01:00,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87082 states. [2018-10-24 17:01:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87082 to 82936. [2018-10-24 17:01:00,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82936 states. [2018-10-24 17:01:00,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82936 states to 82936 states and 84787 transitions. [2018-10-24 17:01:00,822 INFO L78 Accepts]: Start accepts. Automaton has 82936 states and 84787 transitions. Word has length 1754 [2018-10-24 17:01:00,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:01:00,823 INFO L481 AbstractCegarLoop]: Abstraction has 82936 states and 84787 transitions. [2018-10-24 17:01:00,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:01:00,823 INFO L276 IsEmpty]: Start isEmpty. Operand 82936 states and 84787 transitions. [2018-10-24 17:01:00,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1881 [2018-10-24 17:01:00,878 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:01:00,879 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:01:00,879 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:01:00,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:01:00,880 INFO L82 PathProgramCache]: Analyzing trace with hash 1673547804, now seen corresponding path program 1 times [2018-10-24 17:01:00,880 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:01:00,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:01:00,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:01:00,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:01:00,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:01:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:01:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 3273 backedges. 2569 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2018-10-24 17:01:03,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 17:01:03,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 17:01:03,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 17:01:03,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 17:01:03,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:01:03,478 INFO L87 Difference]: Start difference. First operand 82936 states and 84787 transitions. Second operand 4 states. [2018-10-24 17:01:08,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 17:01:08,544 INFO L93 Difference]: Finished difference Result 192129 states and 196778 transitions. [2018-10-24 17:01:08,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 17:01:08,544 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1880 [2018-10-24 17:01:08,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 17:01:08,680 INFO L225 Difference]: With dead ends: 192129 [2018-10-24 17:01:08,681 INFO L226 Difference]: Without dead ends: 109886 [2018-10-24 17:01:08,734 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 17:01:08,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109886 states. [2018-10-24 17:01:09,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109886 to 88464. [2018-10-24 17:01:09,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88464 states. [2018-10-24 17:01:09,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88464 states to 88464 states and 90393 transitions. [2018-10-24 17:01:09,686 INFO L78 Accepts]: Start accepts. Automaton has 88464 states and 90393 transitions. Word has length 1880 [2018-10-24 17:01:09,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 17:01:09,687 INFO L481 AbstractCegarLoop]: Abstraction has 88464 states and 90393 transitions. [2018-10-24 17:01:09,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 17:01:09,687 INFO L276 IsEmpty]: Start isEmpty. Operand 88464 states and 90393 transitions. [2018-10-24 17:01:09,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1916 [2018-10-24 17:01:09,743 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 17:01:09,744 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 17:01:09,744 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 17:01:09,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 17:01:09,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1039127322, now seen corresponding path program 1 times [2018-10-24 17:01:09,745 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 17:01:09,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 17:01:09,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:01:09,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:01:09,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 17:01:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:01:10,717 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 17:01:10,999 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-10-24 17:01:12,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3827 backedges. 2926 proven. 108 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2018-10-24 17:01:12,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 17:01:12,892 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:01:12,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 17:01:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 17:01:13,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-10-24 17:01:30,334 WARN L187 SmtUtils]: Removed 5 from assertion stack [2018-10-24 17:01:30,335 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 17:01:30,536 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 17:01:30,537 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 17:01:30,542 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 17:01:30,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 05:01:30 BoogieIcfgContainer [2018-10-24 17:01:30,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 17:01:30,543 INFO L168 Benchmark]: Toolchain (without parser) took 227935.27 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 157.6 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,544 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 17:01:30,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1920.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,545 INFO L168 Benchmark]: Boogie Procedure Inliner took 456.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -930.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,546 INFO L168 Benchmark]: Boogie Preprocessor took 216.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,547 INFO L168 Benchmark]: RCFGBuilder took 9727.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 520.0 MB). Peak memory consumption was 520.0 MB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,547 INFO L168 Benchmark]: TraceAbstraction took 215607.51 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 1.3 GB in the end (delta: 392.3 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 17:01:30,552 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1920.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 456.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 767.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -930.7 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 216.96 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9727.42 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.6 GB in the end (delta: 520.0 MB). Peak memory consumption was 520.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215607.51 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.6 GB in the beginning and 1.3 GB in the end (delta: 392.3 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 195]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 195). Cancelled while BasicCegarLoop was analyzing trace of length 1916 with TraceHistMax 8,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 442. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 758 locations, 1 error locations. TIMEOUT Result, 215.5s OverallTime, 17 OverallIterations, 9 TraceHistogramMax, 145.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8892 SDtfs, 55744 SDslu, 2182 SDs, 0 SdLazy, 95034 SolverSat, 15943 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 113.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5271 GetRequests, 5156 SyntacticMatches, 14 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88464occurred in iteration=16, 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: 8.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 157950 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 17.4s InterpolantComputationTime, 23360 NumberOfCodeBlocks, 23360 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 23339 ConstructedInterpolants, 0 QuantifiedInterpolants, 85558368 SizeOfPredicates, 1 NumberOfNonLiveVariables, 5937 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 33015/35266 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown