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/Problem16_label18_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:23:43,449 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:23:43,451 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:23:43,464 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:23:43,465 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:23:43,466 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:23:43,468 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:23:43,471 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:23:43,473 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:23:43,474 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:23:43,485 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:23:43,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:23:43,486 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:23:43,487 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:23:43,488 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:23:43,489 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:23:43,490 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:23:43,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:23:43,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:23:43,494 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:23:43,495 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:23:43,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:23:43,499 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:23:43,499 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:23:43,499 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:23:43,500 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:23:43,501 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:23:43,502 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:23:43,502 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:23:43,503 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:23:43,504 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:23:43,504 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 14:23:43,507 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:23:43,523 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:23:43,524 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:23:43,524 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:23:43,525 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:23:43,526 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:23:43,526 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:23:43,527 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:23:43,527 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:23:43,527 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:23:43,527 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:23:43,527 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:23:43,528 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:23:43,529 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:23:43,529 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:23:43,529 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:23:43,529 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:23:43,529 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:23:43,530 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:23:43,530 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:23:43,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:23:43,530 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:23:43,530 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:23:43,531 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:23:43,532 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:23:43,532 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:23:43,532 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:23:43,533 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:23:43,533 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:23:43,606 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:23:43,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:23:43,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:23:43,624 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:23:43,624 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:23:43,625 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label18_false-unreach-call.c [2018-10-24 14:23:43,685 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dac8edc8e/95085be11246440794bdb1d766e6064d/FLAG70c325ce0 [2018-10-24 14:23:44,410 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:23:44,411 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label18_false-unreach-call.c [2018-10-24 14:23:44,432 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dac8edc8e/95085be11246440794bdb1d766e6064d/FLAG70c325ce0 [2018-10-24 14:23:44,452 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/dac8edc8e/95085be11246440794bdb1d766e6064d [2018-10-24 14:23:44,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:23:44,465 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:23:44,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:23:44,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:23:44,470 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:23:44,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:44" (1/1) ... [2018-10-24 14:23:44,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769766bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:44, skipping insertion in model container [2018-10-24 14:23:44,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:44" (1/1) ... [2018-10-24 14:23:44,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:23:44,574 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:23:45,323 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:23:45,328 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:23:45,586 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:23:45,606 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:23:45,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45 WrapperNode [2018-10-24 14:23:45,607 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:23:45,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:23:45,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:23:45,608 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:23:45,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... [2018-10-24 14:23:45,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... [2018-10-24 14:23:45,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:23:45,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:23:45,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:23:45,938 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:23:45,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... [2018-10-24 14:23:45,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... [2018-10-24 14:23:45,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... [2018-10-24 14:23:45,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... [2018-10-24 14:23:46,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... [2018-10-24 14:23:46,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... [2018-10-24 14:23:46,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... [2018-10-24 14:23:46,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:23:46,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:23:46,116 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:23:46,116 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:23:46,117 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:23:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:23:46,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:23:46,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:23:52,627 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:23:52,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:23:52 BoogieIcfgContainer [2018-10-24 14:23:52,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:23:52,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:23:52,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:23:52,633 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:23:52,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:23:44" (1/3) ... [2018-10-24 14:23:52,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178c1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:23:52, skipping insertion in model container [2018-10-24 14:23:52,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:45" (2/3) ... [2018-10-24 14:23:52,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@178c1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:23:52, skipping insertion in model container [2018-10-24 14:23:52,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:23:52" (3/3) ... [2018-10-24 14:23:52,637 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label18_false-unreach-call.c [2018-10-24 14:23:52,650 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:23:52,660 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:23:52,679 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:23:52,720 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:23:52,721 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:23:52,721 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:23:52,721 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:23:52,721 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:23:52,721 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:23:52,722 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:23:52,722 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:23:52,722 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:23:52,752 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states. [2018-10-24 14:23:52,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-24 14:23:52,759 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:23:52,760 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:23:52,763 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:23:52,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:23:52,770 INFO L82 PathProgramCache]: Analyzing trace with hash 150940466, now seen corresponding path program 1 times [2018-10-24 14:23:52,772 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:23:52,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:23:52,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:23:52,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:23:52,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:23:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:23:52,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:23:52,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:23:52,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 14:23:52,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:23:53,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:23:53,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:23:53,010 INFO L87 Difference]: Start difference. First operand 397 states. Second operand 3 states. [2018-10-24 14:23:56,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:23:56,616 INFO L93 Difference]: Finished difference Result 1125 states and 2106 transitions. [2018-10-24 14:23:56,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:23:56,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-24 14:23:56,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:23:56,644 INFO L225 Difference]: With dead ends: 1125 [2018-10-24 14:23:56,645 INFO L226 Difference]: Without dead ends: 724 [2018-10-24 14:23:56,651 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:23:56,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2018-10-24 14:23:56,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2018-10-24 14:23:56,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-10-24 14:23:56,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1139 transitions. [2018-10-24 14:23:56,743 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1139 transitions. Word has length 8 [2018-10-24 14:23:56,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:23:56,743 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1139 transitions. [2018-10-24 14:23:56,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:23:56,743 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1139 transitions. [2018-10-24 14:23:56,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-10-24 14:23:56,746 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:23:56,746 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:23:56,747 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:23:56,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:23:56,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1548975917, now seen corresponding path program 1 times [2018-10-24 14:23:56,747 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:23:56,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:23:56,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:23:56,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:23:56,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:23:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:23:57,049 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:23:57,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:23:57,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:23:57,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:23:57,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:23:57,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:23:57,053 INFO L87 Difference]: Start difference. First operand 724 states and 1139 transitions. Second operand 5 states. [2018-10-24 14:24:03,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:24:03,300 INFO L93 Difference]: Finished difference Result 2106 states and 3352 transitions. [2018-10-24 14:24:03,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:24:03,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2018-10-24 14:24:03,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:24:03,315 INFO L225 Difference]: With dead ends: 2106 [2018-10-24 14:24:03,316 INFO L226 Difference]: Without dead ends: 1384 [2018-10-24 14:24:03,318 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:24:03,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2018-10-24 14:24:03,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2018-10-24 14:24:03,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2018-10-24 14:24:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 2023 transitions. [2018-10-24 14:24:03,381 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 2023 transitions. Word has length 77 [2018-10-24 14:24:03,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:24:03,383 INFO L481 AbstractCegarLoop]: Abstraction has 1384 states and 2023 transitions. [2018-10-24 14:24:03,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:24:03,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 2023 transitions. [2018-10-24 14:24:03,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 14:24:03,391 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:24:03,391 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:24:03,391 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:24:03,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:24:03,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1640363545, now seen corresponding path program 1 times [2018-10-24 14:24:03,392 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:24:03,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:24:03,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:03,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:03,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:03,569 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:24:03,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:24:03,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:24:03,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:24:03,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:24:03,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:24:03,571 INFO L87 Difference]: Start difference. First operand 1384 states and 2023 transitions. Second operand 3 states. [2018-10-24 14:24:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:24:05,923 INFO L93 Difference]: Finished difference Result 3426 states and 5210 transitions. [2018-10-24 14:24:05,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:24:05,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2018-10-24 14:24:05,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:24:05,937 INFO L225 Difference]: With dead ends: 3426 [2018-10-24 14:24:05,938 INFO L226 Difference]: Without dead ends: 2044 [2018-10-24 14:24:05,941 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:24:05,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2044 states. [2018-10-24 14:24:05,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2044 to 2044. [2018-10-24 14:24:05,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2044 states. [2018-10-24 14:24:05,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2044 states to 2044 states and 3021 transitions. [2018-10-24 14:24:05,983 INFO L78 Accepts]: Start accepts. Automaton has 2044 states and 3021 transitions. Word has length 105 [2018-10-24 14:24:05,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:24:05,983 INFO L481 AbstractCegarLoop]: Abstraction has 2044 states and 3021 transitions. [2018-10-24 14:24:05,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:24:05,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2044 states and 3021 transitions. [2018-10-24 14:24:05,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-24 14:24:05,986 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:24:05,986 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:24:05,986 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:24:05,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:24:05,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1278773011, now seen corresponding path program 1 times [2018-10-24 14:24:05,987 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:24:05,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:24:05,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:05,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:05,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:06,405 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-24 14:24:06,894 WARN L179 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2018-10-24 14:24:07,150 WARN L179 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2018-10-24 14:24:07,513 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:24:07,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:24:07,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:24:07,514 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:24:07,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:24:07,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:24:07,515 INFO L87 Difference]: Start difference. First operand 2044 states and 3021 transitions. Second operand 7 states. [2018-10-24 14:24:15,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:24:15,044 INFO L93 Difference]: Finished difference Result 4443 states and 6440 transitions. [2018-10-24 14:24:15,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:24:15,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2018-10-24 14:24:15,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:24:15,058 INFO L225 Difference]: With dead ends: 4443 [2018-10-24 14:24:15,058 INFO L226 Difference]: Without dead ends: 2401 [2018-10-24 14:24:15,061 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:24:15,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2018-10-24 14:24:15,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2374. [2018-10-24 14:24:15,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2374 states. [2018-10-24 14:24:15,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2374 states to 2374 states and 3357 transitions. [2018-10-24 14:24:15,110 INFO L78 Accepts]: Start accepts. Automaton has 2374 states and 3357 transitions. Word has length 140 [2018-10-24 14:24:15,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:24:15,110 INFO L481 AbstractCegarLoop]: Abstraction has 2374 states and 3357 transitions. [2018-10-24 14:24:15,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:24:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2374 states and 3357 transitions. [2018-10-24 14:24:15,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2018-10-24 14:24:15,115 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:24:15,115 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:24:15,115 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:24:15,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:24:15,116 INFO L82 PathProgramCache]: Analyzing trace with hash -809539550, now seen corresponding path program 1 times [2018-10-24 14:24:15,116 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:24:15,116 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:24:15,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:15,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:15,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:15,370 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:24:15,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:24:15,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:24:15,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:24:15,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:24:15,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:24:15,372 INFO L87 Difference]: Start difference. First operand 2374 states and 3357 transitions. Second operand 3 states. [2018-10-24 14:24:19,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:24:19,325 INFO L93 Difference]: Finished difference Result 6396 states and 9334 transitions. [2018-10-24 14:24:19,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:24:19,326 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2018-10-24 14:24:19,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:24:19,343 INFO L225 Difference]: With dead ends: 6396 [2018-10-24 14:24:19,343 INFO L226 Difference]: Without dead ends: 3682 [2018-10-24 14:24:19,348 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:24:19,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3682 states. [2018-10-24 14:24:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3682 to 3682. [2018-10-24 14:24:19,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3682 states. [2018-10-24 14:24:19,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 4179 transitions. [2018-10-24 14:24:19,407 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 4179 transitions. Word has length 228 [2018-10-24 14:24:19,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:24:19,407 INFO L481 AbstractCegarLoop]: Abstraction has 3682 states and 4179 transitions. [2018-10-24 14:24:19,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:24:19,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 4179 transitions. [2018-10-24 14:24:19,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-10-24 14:24:19,412 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:24:19,413 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:24:19,413 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:24:19,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:24:19,413 INFO L82 PathProgramCache]: Analyzing trace with hash 2123129909, now seen corresponding path program 1 times [2018-10-24 14:24:19,413 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:24:19,414 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:24:19,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:19,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:19,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:19,859 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 14:24:20,141 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 15 [2018-10-24 14:24:20,735 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 11 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:24:20,735 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:24:20,735 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:24:20,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:20,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:20,881 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:24:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-10-24 14:24:21,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:24:21,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2018-10-24 14:24:21,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 14:24:21,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 14:24:21,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:24:21,180 INFO L87 Difference]: Start difference. First operand 3682 states and 4179 transitions. Second operand 10 states. [2018-10-24 14:24:29,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:24:29,143 INFO L93 Difference]: Finished difference Result 9358 states and 10578 transitions. [2018-10-24 14:24:29,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 14:24:29,144 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 310 [2018-10-24 14:24:29,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:24:29,167 INFO L225 Difference]: With dead ends: 9358 [2018-10-24 14:24:29,167 INFO L226 Difference]: Without dead ends: 6008 [2018-10-24 14:24:29,172 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2018-10-24 14:24:29,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6008 states. [2018-10-24 14:24:29,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6008 to 5332. [2018-10-24 14:24:29,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5332 states. [2018-10-24 14:24:29,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5332 states to 5332 states and 5915 transitions. [2018-10-24 14:24:29,270 INFO L78 Accepts]: Start accepts. Automaton has 5332 states and 5915 transitions. Word has length 310 [2018-10-24 14:24:29,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:24:29,271 INFO L481 AbstractCegarLoop]: Abstraction has 5332 states and 5915 transitions. [2018-10-24 14:24:29,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 14:24:29,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5332 states and 5915 transitions. [2018-10-24 14:24:29,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-10-24 14:24:29,279 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:24:29,279 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:24:29,280 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:24:29,280 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:24:29,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1426683343, now seen corresponding path program 1 times [2018-10-24 14:24:29,280 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:24:29,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:24:29,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:29,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:29,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:29,833 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 14:24:29,993 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-10-24 14:24:30,434 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-10-24 14:24:30,434 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:24:30,434 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:24:30,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:30,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:24:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 139 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 14:24:31,596 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:24:31,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2018-10-24 14:24:31,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:24:31,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:24:31,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:24:31,599 INFO L87 Difference]: Start difference. First operand 5332 states and 5915 transitions. Second operand 8 states. [2018-10-24 14:24:35,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:24:35,464 INFO L93 Difference]: Finished difference Result 11322 states and 12526 transitions. [2018-10-24 14:24:35,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:24:35,465 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 403 [2018-10-24 14:24:35,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:24:35,487 INFO L225 Difference]: With dead ends: 11322 [2018-10-24 14:24:35,487 INFO L226 Difference]: Without dead ends: 6322 [2018-10-24 14:24:35,493 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 402 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:24:35,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6322 states. [2018-10-24 14:24:35,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6322 to 5992. [2018-10-24 14:24:35,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5992 states. [2018-10-24 14:24:35,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5992 states to 5992 states and 6548 transitions. [2018-10-24 14:24:35,583 INFO L78 Accepts]: Start accepts. Automaton has 5992 states and 6548 transitions. Word has length 403 [2018-10-24 14:24:35,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:24:35,584 INFO L481 AbstractCegarLoop]: Abstraction has 5992 states and 6548 transitions. [2018-10-24 14:24:35,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:24:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 5992 states and 6548 transitions. [2018-10-24 14:24:35,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2018-10-24 14:24:35,609 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:24:35,610 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:24:35,610 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:24:35,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:24:35,610 INFO L82 PathProgramCache]: Analyzing trace with hash 613011524, now seen corresponding path program 1 times [2018-10-24 14:24:35,611 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:24:35,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:24:35,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:35,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:35,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:36,495 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 14:24:36,802 WARN L179 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2018-10-24 14:24:37,367 WARN L179 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 16 [2018-10-24 14:24:38,048 WARN L179 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 21 [2018-10-24 14:24:38,301 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 25 [2018-10-24 14:24:39,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 812 proven. 65 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2018-10-24 14:24:39,702 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:24:39,703 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:24:39,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:39,921 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:24:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 767 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2018-10-24 14:24:40,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:24:40,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2018-10-24 14:24:40,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 14:24:40,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 14:24:40,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:24:40,495 INFO L87 Difference]: Start difference. First operand 5992 states and 6548 transitions. Second operand 9 states. [2018-10-24 14:24:47,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:24:47,499 INFO L93 Difference]: Finished difference Result 18264 states and 20085 transitions. [2018-10-24 14:24:47,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 14:24:47,500 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 807 [2018-10-24 14:24:47,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:24:47,536 INFO L225 Difference]: With dead ends: 18264 [2018-10-24 14:24:47,536 INFO L226 Difference]: Without dead ends: 10948 [2018-10-24 14:24:47,543 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 812 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2018-10-24 14:24:47,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10948 states. [2018-10-24 14:24:47,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10948 to 9616. [2018-10-24 14:24:47,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9616 states. [2018-10-24 14:24:47,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9616 states to 9616 states and 10537 transitions. [2018-10-24 14:24:47,673 INFO L78 Accepts]: Start accepts. Automaton has 9616 states and 10537 transitions. Word has length 807 [2018-10-24 14:24:47,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:24:47,674 INFO L481 AbstractCegarLoop]: Abstraction has 9616 states and 10537 transitions. [2018-10-24 14:24:47,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 14:24:47,674 INFO L276 IsEmpty]: Start isEmpty. Operand 9616 states and 10537 transitions. [2018-10-24 14:24:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 925 [2018-10-24 14:24:47,714 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:24:47,715 INFO L375 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:24:47,715 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:24:47,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:24:47,716 INFO L82 PathProgramCache]: Analyzing trace with hash -295618710, now seen corresponding path program 1 times [2018-10-24 14:24:47,716 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:24:47,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:24:47,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:47,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:47,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:48,389 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-24 14:24:49,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1363 backedges. 617 proven. 283 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2018-10-24 14:24:49,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:24:49,063 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:24:49,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:49,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:24:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1363 backedges. 691 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2018-10-24 14:24:50,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:24:50,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2018-10-24 14:24:50,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 14:24:50,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 14:24:50,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:24:50,253 INFO L87 Difference]: Start difference. First operand 9616 states and 10537 transitions. Second operand 9 states. [2018-10-24 14:24:53,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:24:53,623 INFO L93 Difference]: Finished difference Result 19000 states and 20840 transitions. [2018-10-24 14:24:53,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:24:53,631 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 924 [2018-10-24 14:24:53,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:24:53,651 INFO L225 Difference]: With dead ends: 19000 [2018-10-24 14:24:53,651 INFO L226 Difference]: Without dead ends: 9716 [2018-10-24 14:24:53,660 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 935 GetRequests, 925 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:24:53,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9716 states. [2018-10-24 14:24:53,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9716 to 9616. [2018-10-24 14:24:53,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9616 states. [2018-10-24 14:24:53,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9616 states to 9616 states and 10354 transitions. [2018-10-24 14:24:53,780 INFO L78 Accepts]: Start accepts. Automaton has 9616 states and 10354 transitions. Word has length 924 [2018-10-24 14:24:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:24:53,782 INFO L481 AbstractCegarLoop]: Abstraction has 9616 states and 10354 transitions. [2018-10-24 14:24:53,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 14:24:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand 9616 states and 10354 transitions. [2018-10-24 14:24:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1162 [2018-10-24 14:24:53,806 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:24:53,807 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:24:53,808 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:24:53,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:24:53,808 INFO L82 PathProgramCache]: Analyzing trace with hash 539134463, now seen corresponding path program 1 times [2018-10-24 14:24:53,808 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:24:53,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:24:53,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:53,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:53,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:24:54,768 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-10-24 14:24:55,078 WARN L179 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2018-10-24 14:24:56,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2397 backedges. 1651 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2018-10-24 14:24:56,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:24:56,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:24:56,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:24:56,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:24:56,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:24:56,060 INFO L87 Difference]: Start difference. First operand 9616 states and 10354 transitions. Second operand 5 states. [2018-10-24 14:24:59,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:24:59,025 INFO L93 Difference]: Finished difference Result 22860 states and 24589 transitions. [2018-10-24 14:24:59,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:24:59,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1161 [2018-10-24 14:24:59,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:24:59,050 INFO L225 Difference]: With dead ends: 22860 [2018-10-24 14:24:59,050 INFO L226 Difference]: Without dead ends: 13576 [2018-10-24 14:24:59,061 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:24:59,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13576 states. [2018-10-24 14:24:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13576 to 13576. [2018-10-24 14:24:59,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13576 states. [2018-10-24 14:24:59,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13576 states to 13576 states and 14429 transitions. [2018-10-24 14:24:59,268 INFO L78 Accepts]: Start accepts. Automaton has 13576 states and 14429 transitions. Word has length 1161 [2018-10-24 14:24:59,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:24:59,269 INFO L481 AbstractCegarLoop]: Abstraction has 13576 states and 14429 transitions. [2018-10-24 14:24:59,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:24:59,270 INFO L276 IsEmpty]: Start isEmpty. Operand 13576 states and 14429 transitions. [2018-10-24 14:24:59,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1313 [2018-10-24 14:24:59,308 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:24:59,309 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 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, 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, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:24:59,310 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:24:59,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:24:59,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1790046530, now seen corresponding path program 1 times [2018-10-24 14:24:59,310 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:24:59,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:24:59,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:59,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:24:59,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:24:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:25:00,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 1589 proven. 0 refuted. 0 times theorem prover too weak. 1834 trivial. 0 not checked. [2018-10-24 14:25:00,974 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:25:00,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:25:00,975 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:25:00,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:25:00,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:25:00,975 INFO L87 Difference]: Start difference. First operand 13576 states and 14429 transitions. Second operand 4 states. [2018-10-24 14:25:03,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:25:03,196 INFO L93 Difference]: Finished difference Result 29456 states and 31348 transitions. [2018-10-24 14:25:03,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:25:03,197 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1312 [2018-10-24 14:25:03,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:25:03,219 INFO L225 Difference]: With dead ends: 29456 [2018-10-24 14:25:03,220 INFO L226 Difference]: Without dead ends: 13222 [2018-10-24 14:25:03,232 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:25:03,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13222 states. [2018-10-24 14:25:03,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13222 to 12232. [2018-10-24 14:25:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12232 states. [2018-10-24 14:25:03,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12232 states to 12232 states and 12708 transitions. [2018-10-24 14:25:03,376 INFO L78 Accepts]: Start accepts. Automaton has 12232 states and 12708 transitions. Word has length 1312 [2018-10-24 14:25:03,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:25:03,377 INFO L481 AbstractCegarLoop]: Abstraction has 12232 states and 12708 transitions. [2018-10-24 14:25:03,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:25:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 12232 states and 12708 transitions. [2018-10-24 14:25:03,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1390 [2018-10-24 14:25:03,403 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:25:03,404 INFO L375 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 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, 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, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:25:03,405 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:25:03,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:25:03,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1283964147, now seen corresponding path program 1 times [2018-10-24 14:25:03,405 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:25:03,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:25:03,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:25:03,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:25:03,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:25:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:25:04,429 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 14:25:04,751 WARN L179 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-10-24 14:25:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3665 backedges. 1783 proven. 243 refuted. 0 times theorem prover too weak. 1639 trivial. 0 not checked. [2018-10-24 14:25:07,393 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:25:07,393 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:25:07,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:25:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:25:07,722 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:25:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3665 backedges. 1783 proven. 0 refuted. 0 times theorem prover too weak. 1882 trivial. 0 not checked. [2018-10-24 14:25:09,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:25:09,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2018-10-24 14:25:09,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 14:25:09,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 14:25:09,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:25:09,319 INFO L87 Difference]: Start difference. First operand 12232 states and 12708 transitions. Second operand 10 states. [2018-10-24 14:25:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:25:17,081 INFO L93 Difference]: Finished difference Result 26448 states and 27444 transitions. [2018-10-24 14:25:17,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 14:25:17,082 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1389 [2018-10-24 14:25:17,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:25:17,098 INFO L225 Difference]: With dead ends: 26448 [2018-10-24 14:25:17,098 INFO L226 Difference]: Without dead ends: 14548 [2018-10-24 14:25:17,113 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1405 GetRequests, 1388 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2018-10-24 14:25:17,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14548 states. [2018-10-24 14:25:17,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14548 to 12562. [2018-10-24 14:25:17,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12562 states. [2018-10-24 14:25:17,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12562 states to 12562 states and 13043 transitions. [2018-10-24 14:25:17,260 INFO L78 Accepts]: Start accepts. Automaton has 12562 states and 13043 transitions. Word has length 1389 [2018-10-24 14:25:17,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:25:17,261 INFO L481 AbstractCegarLoop]: Abstraction has 12562 states and 13043 transitions. [2018-10-24 14:25:17,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 14:25:17,261 INFO L276 IsEmpty]: Start isEmpty. Operand 12562 states and 13043 transitions. [2018-10-24 14:25:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1421 [2018-10-24 14:25:17,286 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:25:17,287 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 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, 9, 9, 9, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:25:17,288 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:25:17,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:25:17,288 INFO L82 PathProgramCache]: Analyzing trace with hash 37098125, now seen corresponding path program 1 times [2018-10-24 14:25:17,288 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:25:17,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:25:17,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:25:17,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:25:17,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:25:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:25:18,030 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-10-24 14:25:18,326 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2018-10-24 14:25:18,675 WARN L179 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-10-24 14:25:18,931 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 15 [2018-10-24 14:25:20,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4353 backedges. 1886 proven. 158 refuted. 0 times theorem prover too weak. 2309 trivial. 0 not checked. [2018-10-24 14:25:20,832 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:25:20,832 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 14:25:20,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:25:21,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:25:21,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:25:22,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4353 backedges. 2044 proven. 0 refuted. 0 times theorem prover too weak. 2309 trivial. 0 not checked. [2018-10-24 14:25:22,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:25:22,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2018-10-24 14:25:22,601 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 14:25:22,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 14:25:22,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:25:22,602 INFO L87 Difference]: Start difference. First operand 12562 states and 13043 transitions. Second operand 10 states. [2018-10-24 14:25:32,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:25:32,156 INFO L93 Difference]: Finished difference Result 39119 states and 40742 transitions. [2018-10-24 14:25:32,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 14:25:32,156 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1420 [2018-10-24 14:25:32,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:25:32,187 INFO L225 Difference]: With dead ends: 39119 [2018-10-24 14:25:32,187 INFO L226 Difference]: Without dead ends: 26281 [2018-10-24 14:25:32,200 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1450 GetRequests, 1430 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2018-10-24 14:25:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26281 states. [2018-10-24 14:25:32,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26281 to 20603. [2018-10-24 14:25:32,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20603 states. [2018-10-24 14:25:32,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20603 states to 20603 states and 21343 transitions. [2018-10-24 14:25:32,490 INFO L78 Accepts]: Start accepts. Automaton has 20603 states and 21343 transitions. Word has length 1420 [2018-10-24 14:25:32,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:25:32,490 INFO L481 AbstractCegarLoop]: Abstraction has 20603 states and 21343 transitions. [2018-10-24 14:25:32,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 14:25:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 20603 states and 21343 transitions. [2018-10-24 14:25:32,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1671 [2018-10-24 14:25:32,532 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:25:32,533 INFO L375 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 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, 9, 9, 9, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:25:32,533 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:25:32,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:25:32,534 INFO L82 PathProgramCache]: Analyzing trace with hash 812329880, now seen corresponding path program 1 times [2018-10-24 14:25:32,534 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:25:32,534 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:25:32,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:25:32,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:25:32,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:25:32,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:25:33,871 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 14:25:34,142 WARN L179 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-10-24 14:25:38,170 INFO L134 CoverageAnalysis]: Checked inductivity of 5084 backedges. 1556 proven. 3206 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2018-10-24 14:25:38,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:25:38,171 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:25:38,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:25:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:25:38,622 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:25:39,575 WARN L179 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 15 [2018-10-24 14:25:41,332 INFO L134 CoverageAnalysis]: Checked inductivity of 5084 backedges. 3609 proven. 148 refuted. 0 times theorem prover too weak. 1327 trivial. 0 not checked. [2018-10-24 14:25:41,354 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:25:41,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2018-10-24 14:25:41,356 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-24 14:25:41,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-24 14:25:41,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-24 14:25:41,357 INFO L87 Difference]: Start difference. First operand 20603 states and 21343 transitions. Second operand 14 states. [2018-10-24 14:25:52,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:25:52,114 INFO L93 Difference]: Finished difference Result 42224 states and 43766 transitions. [2018-10-24 14:25:52,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-24 14:25:52,118 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 1670 [2018-10-24 14:25:52,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:25:52,137 INFO L225 Difference]: With dead ends: 42224 [2018-10-24 14:25:52,137 INFO L226 Difference]: Without dead ends: 21953 [2018-10-24 14:25:52,147 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1706 GetRequests, 1679 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2018-10-24 14:25:52,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21953 states. [2018-10-24 14:25:52,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21953 to 21261. [2018-10-24 14:25:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21261 states. [2018-10-24 14:25:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21261 states to 21261 states and 21840 transitions. [2018-10-24 14:25:52,360 INFO L78 Accepts]: Start accepts. Automaton has 21261 states and 21840 transitions. Word has length 1670 [2018-10-24 14:25:52,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:25:52,361 INFO L481 AbstractCegarLoop]: Abstraction has 21261 states and 21840 transitions. [2018-10-24 14:25:52,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-24 14:25:52,361 INFO L276 IsEmpty]: Start isEmpty. Operand 21261 states and 21840 transitions. [2018-10-24 14:25:52,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1933 [2018-10-24 14:25:52,394 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:25:52,395 INFO L375 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:25:52,395 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:25:52,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:25:52,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1826266732, now seen corresponding path program 1 times [2018-10-24 14:25:52,396 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:25:52,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:25:52,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:25:52,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:25:52,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:25:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:25:53,723 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 14:25:53,905 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 14:25:54,166 WARN L179 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-24 14:25:54,476 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2018-10-24 14:25:58,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6719 backedges. 3267 proven. 251 refuted. 0 times theorem prover too weak. 3201 trivial. 0 not checked. [2018-10-24 14:25:58,509 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:25:58,510 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:25:58,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:25:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:25:58,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:26:01,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6719 backedges. 3868 proven. 0 refuted. 0 times theorem prover too weak. 2851 trivial. 0 not checked. [2018-10-24 14:26:01,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:26:01,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2018-10-24 14:26:01,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 14:26:01,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 14:26:01,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-10-24 14:26:01,254 INFO L87 Difference]: Start difference. First operand 21261 states and 21840 transitions. Second operand 11 states. [2018-10-24 14:26:12,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:26:12,801 INFO L93 Difference]: Finished difference Result 45315 states and 46608 transitions. [2018-10-24 14:26:12,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 14:26:12,801 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1932 [2018-10-24 14:26:12,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:26:12,820 INFO L225 Difference]: With dead ends: 45315 [2018-10-24 14:26:12,820 INFO L226 Difference]: Without dead ends: 24386 [2018-10-24 14:26:12,829 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1961 GetRequests, 1939 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2018-10-24 14:26:12,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24386 states. [2018-10-24 14:26:12,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24386 to 22420. [2018-10-24 14:26:12,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22420 states. [2018-10-24 14:26:13,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22420 states to 22420 states and 22943 transitions. [2018-10-24 14:26:13,007 INFO L78 Accepts]: Start accepts. Automaton has 22420 states and 22943 transitions. Word has length 1932 [2018-10-24 14:26:13,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:26:13,007 INFO L481 AbstractCegarLoop]: Abstraction has 22420 states and 22943 transitions. [2018-10-24 14:26:13,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-24 14:26:13,007 INFO L276 IsEmpty]: Start isEmpty. Operand 22420 states and 22943 transitions. [2018-10-24 14:26:13,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2246 [2018-10-24 14:26:13,039 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:26:13,040 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:26:13,041 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:26:13,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:26:13,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1274453784, now seen corresponding path program 1 times [2018-10-24 14:26:13,042 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:26:13,042 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:26:13,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:26:13,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:26:13,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:26:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:26:14,609 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 14:26:14,771 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 14:26:15,202 WARN L179 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2018-10-24 14:26:15,594 WARN L179 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2018-10-24 14:26:20,347 INFO L134 CoverageAnalysis]: Checked inductivity of 9742 backedges. 4289 proven. 319 refuted. 0 times theorem prover too weak. 5134 trivial. 0 not checked. [2018-10-24 14:26:20,347 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:26:20,347 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:26:20,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:26:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:26:20,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:26:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 9742 backedges. 5414 proven. 0 refuted. 0 times theorem prover too weak. 4328 trivial. 0 not checked. [2018-10-24 14:26:23,214 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:26:23,215 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-24 14:26:23,217 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:26:23,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:26:23,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:26:23,217 INFO L87 Difference]: Start difference. First operand 22420 states and 22943 transitions. Second operand 8 states. [2018-10-24 14:26:27,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:26:27,567 INFO L93 Difference]: Finished difference Result 45538 states and 46591 transitions. [2018-10-24 14:26:27,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 14:26:27,568 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 2245 [2018-10-24 14:26:27,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:26:27,586 INFO L225 Difference]: With dead ends: 45538 [2018-10-24 14:26:27,586 INFO L226 Difference]: Without dead ends: 23450 [2018-10-24 14:26:27,598 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2256 GetRequests, 2247 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-24 14:26:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23450 states. [2018-10-24 14:26:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23450 to 22750. [2018-10-24 14:26:27,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22750 states. [2018-10-24 14:26:27,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22750 states to 22750 states and 23270 transitions. [2018-10-24 14:26:27,794 INFO L78 Accepts]: Start accepts. Automaton has 22750 states and 23270 transitions. Word has length 2245 [2018-10-24 14:26:27,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:26:27,794 INFO L481 AbstractCegarLoop]: Abstraction has 22750 states and 23270 transitions. [2018-10-24 14:26:27,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:26:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 22750 states and 23270 transitions. [2018-10-24 14:26:27,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2461 [2018-10-24 14:26:27,843 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:26:27,845 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:26:27,845 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:26:27,845 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:26:27,846 INFO L82 PathProgramCache]: Analyzing trace with hash 660163135, now seen corresponding path program 1 times [2018-10-24 14:26:27,846 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:26:27,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:26:27,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:26:27,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:26:27,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:26:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:26:29,728 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-24 14:26:34,093 INFO L134 CoverageAnalysis]: Checked inductivity of 11160 backedges. 5477 proven. 572 refuted. 0 times theorem prover too weak. 5111 trivial. 0 not checked. [2018-10-24 14:26:34,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:26:34,093 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:26:34,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:26:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:26:34,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:26:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 11160 backedges. 5582 proven. 467 refuted. 0 times theorem prover too weak. 5111 trivial. 0 not checked. [2018-10-24 14:26:38,360 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:26:38,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 8 [2018-10-24 14:26:38,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 14:26:38,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 14:26:38,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:26:38,365 INFO L87 Difference]: Start difference. First operand 22750 states and 23270 transitions. Second operand 9 states. [2018-10-24 14:26:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:26:43,984 INFO L93 Difference]: Finished difference Result 48389 states and 49540 transitions. [2018-10-24 14:26:43,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-24 14:26:43,985 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 2460 [2018-10-24 14:26:43,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:26:44,014 INFO L225 Difference]: With dead ends: 48389 [2018-10-24 14:26:44,014 INFO L226 Difference]: Without dead ends: 25971 [2018-10-24 14:26:44,030 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2473 GetRequests, 2460 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-10-24 14:26:44,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25971 states. [2018-10-24 14:26:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25971 to 25028. [2018-10-24 14:26:44,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25028 states. [2018-10-24 14:26:44,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25028 states to 25028 states and 25565 transitions. [2018-10-24 14:26:44,308 INFO L78 Accepts]: Start accepts. Automaton has 25028 states and 25565 transitions. Word has length 2460 [2018-10-24 14:26:44,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:26:44,309 INFO L481 AbstractCegarLoop]: Abstraction has 25028 states and 25565 transitions. [2018-10-24 14:26:44,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 14:26:44,309 INFO L276 IsEmpty]: Start isEmpty. Operand 25028 states and 25565 transitions. [2018-10-24 14:26:44,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2469 [2018-10-24 14:26:44,372 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:26:44,373 INFO L375 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 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, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:26:44,374 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:26:44,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:26:44,374 INFO L82 PathProgramCache]: Analyzing trace with hash 405645893, now seen corresponding path program 1 times [2018-10-24 14:26:44,374 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:26:44,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:26:44,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:26:44,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:26:44,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:26:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:26:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 11695 backedges. 6106 proven. 0 refuted. 0 times theorem prover too weak. 5589 trivial. 0 not checked. [2018-10-24 14:26:47,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:26:47,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:26:47,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:26:47,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:26:47,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:26:47,257 INFO L87 Difference]: Start difference. First operand 25028 states and 25565 transitions. Second operand 4 states. [2018-10-24 14:26:49,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:26:49,226 INFO L93 Difference]: Finished difference Result 49724 states and 50796 transitions. [2018-10-24 14:26:49,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:26:49,227 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 2468 [2018-10-24 14:26:49,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:26:49,246 INFO L225 Difference]: With dead ends: 49724 [2018-10-24 14:26:49,246 INFO L226 Difference]: Without dead ends: 25028 [2018-10-24 14:26:49,257 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:26:49,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25028 states. [2018-10-24 14:26:49,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25028 to 23993. [2018-10-24 14:26:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23993 states. [2018-10-24 14:26:49,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23993 states to 23993 states and 24443 transitions. [2018-10-24 14:26:49,443 INFO L78 Accepts]: Start accepts. Automaton has 23993 states and 24443 transitions. Word has length 2468 [2018-10-24 14:26:49,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:26:49,444 INFO L481 AbstractCegarLoop]: Abstraction has 23993 states and 24443 transitions. [2018-10-24 14:26:49,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:26:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 23993 states and 24443 transitions. [2018-10-24 14:26:49,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2483 [2018-10-24 14:26:49,479 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:26:49,480 INFO L375 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:26:49,481 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:26:49,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:26:49,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1125891096, now seen corresponding path program 1 times [2018-10-24 14:26:49,482 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:26:49,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:26:49,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:26:49,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:26:49,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:26:49,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:26:57,194 INFO L134 CoverageAnalysis]: Checked inductivity of 11320 backedges. 8088 proven. 985 refuted. 0 times theorem prover too weak. 2247 trivial. 0 not checked. [2018-10-24 14:26:57,194 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:26:57,194 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:26:57,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:26:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:26:57,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:27:19,625 WARN L179 SmtUtils]: Spent 21.61 s on a formula simplification. DAG size of input: 427 DAG size of output: 23 [2018-10-24 14:27:25,165 INFO L134 CoverageAnalysis]: Checked inductivity of 11320 backedges. 7313 proven. 0 refuted. 0 times theorem prover too weak. 4007 trivial. 0 not checked. [2018-10-24 14:27:25,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:27:25,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2018-10-24 14:27:25,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 14:27:25,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 14:27:25,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:27:25,192 INFO L87 Difference]: Start difference. First operand 23993 states and 24443 transitions. Second operand 10 states. Received shutdown request... [2018-10-24 14:27:32,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 14:27:32,734 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:27:32,741 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:27:32,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:27:32 BoogieIcfgContainer [2018-10-24 14:27:32,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:27:32,743 INFO L168 Benchmark]: Toolchain (without parser) took 228278.59 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -544.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 14:27:32,744 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:27:32,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1141.10 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:27:32,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 329.03 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -819.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-24 14:27:32,749 INFO L168 Benchmark]: Boogie Preprocessor took 178.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:27:32,750 INFO L168 Benchmark]: RCFGBuilder took 6512.13 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 249.0 MB). Peak memory consumption was 249.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:27:32,753 INFO L168 Benchmark]: TraceAbstraction took 220113.01 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -86.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 14:27:32,764 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1141.10 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 329.03 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 708.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -819.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6512.13 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 249.0 MB). Peak memory consumption was 249.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220113.01 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 1.9 GB in the end (delta: -86.9 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 28]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 28). Cancelled while BasicCegarLoop was constructing difference of abstraction (23993states) and FLOYD_HOARE automaton (currently 8 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (7749 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 397 locations, 1 error locations. TIMEOUT Result, 220.0s OverallTime, 19 OverallIterations, 14 TraceHistogramMax, 110.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3000 SDtfs, 36486 SDslu, 2416 SDs, 0 SdLazy, 76331 SolverSat, 5664 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 90.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16279 GetRequests, 16088 SyntacticMatches, 26 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 37.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25028occurred in iteration=17, 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: 2.5s AutomataMinimizationTime, 18 MinimizatonAttempts, 16455 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.0s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 66.5s InterpolantComputationTime, 37583 NumberOfCodeBlocks, 37583 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 37553 ConstructedInterpolants, 212 QuantifiedInterpolants, 250180805 SizeOfPredicates, 10 NumberOfNonLiveVariables, 18533 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 30 InterpolantComputations, 16 PerfectInterpolantSequences, 120414/127208 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown