java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:05:17,519 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:05:17,521 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:05:17,539 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:05:17,539 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:05:17,540 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:05:17,542 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:05:17,545 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:05:17,548 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:05:17,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:05:17,551 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:05:17,552 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:05:17,552 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:05:17,553 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:05:17,555 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:05:17,555 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:05:17,564 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:05:17,568 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:05:17,570 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:05:17,571 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:05:17,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:05:17,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:05:17,579 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 14:05:17,593 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:05:17,616 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:05:17,616 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:05:17,617 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:05:17,617 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:05:17,618 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:05:17,621 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:05:17,621 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:05:17,621 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:05:17,621 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:05:17,622 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:05:17,622 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:05:17,622 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:05:17,622 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:05:17,622 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:05:17,622 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:05:17,624 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:05:17,624 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:05:17,624 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:05:17,624 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:05:17,625 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:05:17,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:05:17,625 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:05:17,625 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:05:17,625 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:05:17,626 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:05:17,626 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:05:17,626 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:05:17,627 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:05:17,694 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:05:17,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:05:17,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:05:17,713 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:05:17,713 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:05:17,714 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c [2018-10-24 14:05:17,777 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7523267fd/0ed6f33331684b3c9fe1a6e934f6e740/FLAGdd9ceaa0b [2018-10-24 14:05:18,516 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:05:18,517 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c [2018-10-24 14:05:18,544 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7523267fd/0ed6f33331684b3c9fe1a6e934f6e740/FLAGdd9ceaa0b [2018-10-24 14:05:18,566 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7523267fd/0ed6f33331684b3c9fe1a6e934f6e740 [2018-10-24 14:05:18,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:05:18,581 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:05:18,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:05:18,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:05:18,589 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:05:18,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:05:18" (1/1) ... [2018-10-24 14:05:18,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc74075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:18, skipping insertion in model container [2018-10-24 14:05:18,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:05:18" (1/1) ... [2018-10-24 14:05:18,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:05:18,785 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:05:20,081 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:05:20,086 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:05:20,711 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:05:20,749 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:05:20,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20 WrapperNode [2018-10-24 14:05:20,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:05:20,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:05:20,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:05:20,751 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:05:20,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (1/1) ... [2018-10-24 14:05:20,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (1/1) ... [2018-10-24 14:05:21,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:05:21,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:05:21,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:05:21,403 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:05:21,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (1/1) ... [2018-10-24 14:05:21,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (1/1) ... [2018-10-24 14:05:21,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (1/1) ... [2018-10-24 14:05:21,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (1/1) ... [2018-10-24 14:05:21,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (1/1) ... [2018-10-24 14:05:21,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (1/1) ... [2018-10-24 14:05:21,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (1/1) ... [2018-10-24 14:05:21,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:05:21,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:05:21,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:05:21,779 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:05:21,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (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 14:05:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:05:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:05:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:05:31,571 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:05:31,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:05:31 BoogieIcfgContainer [2018-10-24 14:05:31,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:05:31,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:05:31,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:05:31,578 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:05:31,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:05:18" (1/3) ... [2018-10-24 14:05:31,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b63ea08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:05:31, skipping insertion in model container [2018-10-24 14:05:31,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:05:20" (2/3) ... [2018-10-24 14:05:31,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b63ea08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:05:31, skipping insertion in model container [2018-10-24 14:05:31,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:05:31" (3/3) ... [2018-10-24 14:05:31,582 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label51_false-unreach-call.c [2018-10-24 14:05:31,592 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:05:31,601 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:05:31,619 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:05:31,662 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:05:31,663 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:05:31,663 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:05:31,664 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:05:31,664 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:05:31,664 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:05:31,664 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:05:31,664 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:05:31,664 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:05:31,699 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states. [2018-10-24 14:05:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-24 14:05:31,706 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:05:31,708 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:05:31,715 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:05:31,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:05:31,725 INFO L82 PathProgramCache]: Analyzing trace with hash -643220670, now seen corresponding path program 1 times [2018-10-24 14:05:31,727 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:05:31,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:05:31,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:31,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:05:31,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:05:32,074 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 14:05:32,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:05:32,079 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:05:32,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:05:32,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:05:32,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:05:32,104 INFO L87 Difference]: Start difference. First operand 819 states. Second operand 4 states. [2018-10-24 14:05:44,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:05:44,165 INFO L93 Difference]: Finished difference Result 3146 states and 6134 transitions. [2018-10-24 14:05:44,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:05:44,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-10-24 14:05:44,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:05:44,210 INFO L225 Difference]: With dead ends: 3146 [2018-10-24 14:05:44,210 INFO L226 Difference]: Without dead ends: 2320 [2018-10-24 14:05:44,217 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:05:44,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2320 states. [2018-10-24 14:05:44,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2320 to 2320. [2018-10-24 14:05:44,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2320 states. [2018-10-24 14:05:44,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2320 states to 2320 states and 3906 transitions. [2018-10-24 14:05:44,369 INFO L78 Accepts]: Start accepts. Automaton has 2320 states and 3906 transitions. Word has length 12 [2018-10-24 14:05:44,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:05:44,369 INFO L481 AbstractCegarLoop]: Abstraction has 2320 states and 3906 transitions. [2018-10-24 14:05:44,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:05:44,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2320 states and 3906 transitions. [2018-10-24 14:05:44,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-24 14:05:44,373 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:05:44,373 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:05:44,374 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:05:44,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:05:44,374 INFO L82 PathProgramCache]: Analyzing trace with hash -411040474, now seen corresponding path program 1 times [2018-10-24 14:05:44,375 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:05:44,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:05:44,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:44,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:05:44,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:05:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:05:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:05:44,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:05:44,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:05:44,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:05:44,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:05:44,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:05:44,784 INFO L87 Difference]: Start difference. First operand 2320 states and 3906 transitions. Second operand 4 states. [2018-10-24 14:06:01,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:06:01,068 INFO L93 Difference]: Finished difference Result 9150 states and 15496 transitions. [2018-10-24 14:06:01,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:06:01,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 87 [2018-10-24 14:06:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:06:01,110 INFO L225 Difference]: With dead ends: 9150 [2018-10-24 14:06:01,110 INFO L226 Difference]: Without dead ends: 6832 [2018-10-24 14:06:01,117 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:06:01,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2018-10-24 14:06:01,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6832. [2018-10-24 14:06:01,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6832 states. [2018-10-24 14:06:01,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6832 states to 6832 states and 9986 transitions. [2018-10-24 14:06:01,258 INFO L78 Accepts]: Start accepts. Automaton has 6832 states and 9986 transitions. Word has length 87 [2018-10-24 14:06:01,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:06:01,259 INFO L481 AbstractCegarLoop]: Abstraction has 6832 states and 9986 transitions. [2018-10-24 14:06:01,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:06:01,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6832 states and 9986 transitions. [2018-10-24 14:06:01,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-24 14:06:01,264 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:06:01,265 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:06:01,265 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:06:01,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:06:01,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1564158229, now seen corresponding path program 1 times [2018-10-24 14:06:01,266 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:06:01,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:06:01,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:01,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:01,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:01,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:06:01,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:06:01,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:06:01,491 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:06:01,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:06:01,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:06:01,492 INFO L87 Difference]: Start difference. First operand 6832 states and 9986 transitions. Second operand 4 states. [2018-10-24 14:06:11,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:06:11,568 INFO L93 Difference]: Finished difference Result 27214 states and 39832 transitions. [2018-10-24 14:06:11,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:06:11,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2018-10-24 14:06:11,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:06:11,657 INFO L225 Difference]: With dead ends: 27214 [2018-10-24 14:06:11,657 INFO L226 Difference]: Without dead ends: 20384 [2018-10-24 14:06:11,671 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:06:11,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20384 states. [2018-10-24 14:06:11,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 13600. [2018-10-24 14:06:11,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13600 states. [2018-10-24 14:06:11,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13600 states to 13600 states and 17824 transitions. [2018-10-24 14:06:11,992 INFO L78 Accepts]: Start accepts. Automaton has 13600 states and 17824 transitions. Word has length 112 [2018-10-24 14:06:11,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:06:11,992 INFO L481 AbstractCegarLoop]: Abstraction has 13600 states and 17824 transitions. [2018-10-24 14:06:11,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:06:11,993 INFO L276 IsEmpty]: Start isEmpty. Operand 13600 states and 17824 transitions. [2018-10-24 14:06:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-10-24 14:06:12,009 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:06:12,010 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:06:12,010 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:06:12,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:06:12,011 INFO L82 PathProgramCache]: Analyzing trace with hash 939713106, now seen corresponding path program 1 times [2018-10-24 14:06:12,011 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:06:12,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:06:12,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:12,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:12,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:12,726 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 9 [2018-10-24 14:06:13,074 WARN L179 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 19 [2018-10-24 14:06:13,186 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 85 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:06:13,186 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:06:13,187 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 14:06:13,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:13,313 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:06:13,491 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:06:13,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:06:13,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-24 14:06:13,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:06:13,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:06:13,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:06:13,526 INFO L87 Difference]: Start difference. First operand 13600 states and 17824 transitions. Second operand 7 states. [2018-10-24 14:06:14,922 WARN L179 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 18 [2018-10-24 14:06:36,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:06:36,385 INFO L93 Difference]: Finished difference Result 58062 states and 73567 transitions. [2018-10-24 14:06:36,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 14:06:36,394 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2018-10-24 14:06:36,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:06:36,490 INFO L225 Difference]: With dead ends: 58062 [2018-10-24 14:06:36,490 INFO L226 Difference]: Without dead ends: 43711 [2018-10-24 14:06:36,510 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 162 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-10-24 14:06:36,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43711 states. [2018-10-24 14:06:37,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43711 to 35423. [2018-10-24 14:06:37,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35423 states. [2018-10-24 14:06:37,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35423 states to 35423 states and 42279 transitions. [2018-10-24 14:06:37,200 INFO L78 Accepts]: Start accepts. Automaton has 35423 states and 42279 transitions. Word has length 161 [2018-10-24 14:06:37,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:06:37,200 INFO L481 AbstractCegarLoop]: Abstraction has 35423 states and 42279 transitions. [2018-10-24 14:06:37,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:06:37,201 INFO L276 IsEmpty]: Start isEmpty. Operand 35423 states and 42279 transitions. [2018-10-24 14:06:37,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-24 14:06:37,206 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:06:37,206 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:37,207 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:06:37,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:06:37,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1696742965, now seen corresponding path program 1 times [2018-10-24 14:06:37,207 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:06:37,207 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:06:37,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:37,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:37,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:37,550 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 14:06:37,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:06:37,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:06:37,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:06:37,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:06:37,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:06:37,552 INFO L87 Difference]: Start difference. First operand 35423 states and 42279 transitions. Second operand 4 states. [2018-10-24 14:06:45,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:06:45,633 INFO L93 Difference]: Finished difference Result 79868 states and 95291 transitions. [2018-10-24 14:06:45,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:06:45,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 227 [2018-10-24 14:06:45,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:06:45,702 INFO L225 Difference]: With dead ends: 79868 [2018-10-24 14:06:45,702 INFO L226 Difference]: Without dead ends: 36131 [2018-10-24 14:06:45,747 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:06:45,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36131 states. [2018-10-24 14:06:46,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36131 to 28604. [2018-10-24 14:06:46,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28604 states. [2018-10-24 14:06:46,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28604 states to 28604 states and 31908 transitions. [2018-10-24 14:06:46,146 INFO L78 Accepts]: Start accepts. Automaton has 28604 states and 31908 transitions. Word has length 227 [2018-10-24 14:06:46,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:06:46,147 INFO L481 AbstractCegarLoop]: Abstraction has 28604 states and 31908 transitions. [2018-10-24 14:06:46,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:06:46,148 INFO L276 IsEmpty]: Start isEmpty. Operand 28604 states and 31908 transitions. [2018-10-24 14:06:46,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-10-24 14:06:46,157 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:06:46,158 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:46,158 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:06:46,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:06:46,159 INFO L82 PathProgramCache]: Analyzing trace with hash 596553913, now seen corresponding path program 1 times [2018-10-24 14:06:46,159 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:06:46,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:06:46,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:46,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:46,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:06:46,610 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 14:06:47,306 WARN L179 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2018-10-24 14:06:47,550 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 23 [2018-10-24 14:06:47,864 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-24 14:06:47,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:06:47,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:06:47,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:06:47,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:06:47,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:06:47,866 INFO L87 Difference]: Start difference. First operand 28604 states and 31908 transitions. Second operand 6 states. [2018-10-24 14:06:59,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:06:59,309 INFO L93 Difference]: Finished difference Result 69991 states and 78136 transitions. [2018-10-24 14:06:59,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:06:59,309 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 344 [2018-10-24 14:06:59,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:06:59,360 INFO L225 Difference]: With dead ends: 69991 [2018-10-24 14:06:59,361 INFO L226 Difference]: Without dead ends: 41389 [2018-10-24 14:06:59,380 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:06:59,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41389 states. [2018-10-24 14:06:59,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41389 to 41389. [2018-10-24 14:06:59,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41389 states. [2018-10-24 14:06:59,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41389 states to 41389 states and 45451 transitions. [2018-10-24 14:06:59,803 INFO L78 Accepts]: Start accepts. Automaton has 41389 states and 45451 transitions. Word has length 344 [2018-10-24 14:06:59,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:06:59,803 INFO L481 AbstractCegarLoop]: Abstraction has 41389 states and 45451 transitions. [2018-10-24 14:06:59,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:06:59,803 INFO L276 IsEmpty]: Start isEmpty. Operand 41389 states and 45451 transitions. [2018-10-24 14:06:59,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2018-10-24 14:06:59,812 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:06:59,813 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:06:59,813 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:06:59,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:06:59,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1828801490, now seen corresponding path program 1 times [2018-10-24 14:06:59,814 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:06:59,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:06:59,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:59,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:06:59,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:06:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:00,197 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 14:07:00,311 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-24 14:07:00,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:07:00,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:07:00,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:07:00,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:07:00,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:07:00,313 INFO L87 Difference]: Start difference. First operand 41389 states and 45451 transitions. Second operand 4 states. [2018-10-24 14:07:09,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:09,005 INFO L93 Difference]: Finished difference Result 141432 states and 156079 transitions. [2018-10-24 14:07:09,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:07:09,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 383 [2018-10-24 14:07:09,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:09,141 INFO L225 Difference]: With dead ends: 141432 [2018-10-24 14:07:09,141 INFO L226 Difference]: Without dead ends: 100797 [2018-10-24 14:07:09,181 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 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 14:07:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100797 states. [2018-10-24 14:07:10,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100797 to 90269. [2018-10-24 14:07:10,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90269 states. [2018-10-24 14:07:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90269 states to 90269 states and 98740 transitions. [2018-10-24 14:07:10,353 INFO L78 Accepts]: Start accepts. Automaton has 90269 states and 98740 transitions. Word has length 383 [2018-10-24 14:07:10,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:07:10,354 INFO L481 AbstractCegarLoop]: Abstraction has 90269 states and 98740 transitions. [2018-10-24 14:07:10,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:07:10,355 INFO L276 IsEmpty]: Start isEmpty. Operand 90269 states and 98740 transitions. [2018-10-24 14:07:10,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2018-10-24 14:07:10,370 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:10,370 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:07:10,370 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:10,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:10,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1065329849, now seen corresponding path program 1 times [2018-10-24 14:07:10,371 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:10,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:10,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:10,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:10,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:10,823 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-24 14:07:10,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:07:10,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:07:10,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:07:10,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:07:10,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:07:10,825 INFO L87 Difference]: Start difference. First operand 90269 states and 98740 transitions. Second operand 4 states. [2018-10-24 14:07:18,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:18,256 INFO L93 Difference]: Finished difference Result 190312 states and 207984 transitions. [2018-10-24 14:07:18,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:07:18,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 390 [2018-10-24 14:07:18,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:18,361 INFO L225 Difference]: With dead ends: 190312 [2018-10-24 14:07:18,361 INFO L226 Difference]: Without dead ends: 100797 [2018-10-24 14:07:18,410 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 14:07:18,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100797 states. [2018-10-24 14:07:19,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100797 to 97789. [2018-10-24 14:07:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97789 states. [2018-10-24 14:07:19,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97789 states to 97789 states and 105902 transitions. [2018-10-24 14:07:19,416 INFO L78 Accepts]: Start accepts. Automaton has 97789 states and 105902 transitions. Word has length 390 [2018-10-24 14:07:19,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:07:19,416 INFO L481 AbstractCegarLoop]: Abstraction has 97789 states and 105902 transitions. [2018-10-24 14:07:19,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:07:19,416 INFO L276 IsEmpty]: Start isEmpty. Operand 97789 states and 105902 transitions. [2018-10-24 14:07:19,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2018-10-24 14:07:19,428 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:19,429 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 14:07:19,429 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:19,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:19,429 INFO L82 PathProgramCache]: Analyzing trace with hash -132197812, now seen corresponding path program 1 times [2018-10-24 14:07:19,430 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:19,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:19,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:19,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:19,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-24 14:07:20,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:07:20,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:07:20,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:07:20,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:07:20,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:07:20,013 INFO L87 Difference]: Start difference. First operand 97789 states and 105902 transitions. Second operand 4 states. [2018-10-24 14:07:26,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:26,800 INFO L93 Difference]: Finished difference Result 194072 states and 210261 transitions. [2018-10-24 14:07:26,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:07:26,803 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 431 [2018-10-24 14:07:26,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:26,903 INFO L225 Difference]: With dead ends: 194072 [2018-10-24 14:07:26,903 INFO L226 Difference]: Without dead ends: 96284 [2018-10-24 14:07:26,945 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 14:07:27,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96284 states. [2018-10-24 14:07:27,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96284 to 94780. [2018-10-24 14:07:27,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94780 states. [2018-10-24 14:07:27,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94780 states to 94780 states and 100091 transitions. [2018-10-24 14:07:27,725 INFO L78 Accepts]: Start accepts. Automaton has 94780 states and 100091 transitions. Word has length 431 [2018-10-24 14:07:27,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:07:27,725 INFO L481 AbstractCegarLoop]: Abstraction has 94780 states and 100091 transitions. [2018-10-24 14:07:27,726 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:07:27,726 INFO L276 IsEmpty]: Start isEmpty. Operand 94780 states and 100091 transitions. [2018-10-24 14:07:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2018-10-24 14:07:27,743 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:27,743 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:07:27,743 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:27,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:27,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1410158607, now seen corresponding path program 1 times [2018-10-24 14:07:27,744 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:27,744 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:27,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:27,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:27,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:28,380 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-10-24 14:07:28,760 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 264 proven. 263 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-10-24 14:07:28,760 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:07:28,760 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 14:07:28,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:28,923 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:07:29,186 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2018-10-24 14:07:29,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:07:29,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2018-10-24 14:07:29,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 14:07:29,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 14:07:29,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:07:29,208 INFO L87 Difference]: Start difference. First operand 94780 states and 100091 transitions. Second operand 8 states. [2018-10-24 14:07:52,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:07:52,192 INFO L93 Difference]: Finished difference Result 200831 states and 212676 transitions. [2018-10-24 14:07:52,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 14:07:52,194 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 487 [2018-10-24 14:07:52,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:07:52,328 INFO L225 Difference]: With dead ends: 200831 [2018-10-24 14:07:52,328 INFO L226 Difference]: Without dead ends: 106805 [2018-10-24 14:07:52,372 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-10-24 14:07:52,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106805 states. [2018-10-24 14:07:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106805 to 102293. [2018-10-24 14:07:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102293 states. [2018-10-24 14:07:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102293 states to 102293 states and 106753 transitions. [2018-10-24 14:07:53,334 INFO L78 Accepts]: Start accepts. Automaton has 102293 states and 106753 transitions. Word has length 487 [2018-10-24 14:07:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:07:53,335 INFO L481 AbstractCegarLoop]: Abstraction has 102293 states and 106753 transitions. [2018-10-24 14:07:53,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 14:07:53,335 INFO L276 IsEmpty]: Start isEmpty. Operand 102293 states and 106753 transitions. [2018-10-24 14:07:53,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 596 [2018-10-24 14:07:53,355 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:07:53,356 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 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 14:07:53,356 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:07:53,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:07:53,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1200594269, now seen corresponding path program 1 times [2018-10-24 14:07:53,357 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:07:53,357 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:07:53,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:53,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:53,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:07:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:53,960 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-10-24 14:07:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 735 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-24 14:07:54,355 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:07:54,356 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 14:07:54,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:07:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:07:54,508 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:07:55,113 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2018-10-24 14:07:55,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:07:55,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2018-10-24 14:07:55,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:07:55,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:07:55,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:07:55,136 INFO L87 Difference]: Start difference. First operand 102293 states and 106753 transitions. Second operand 7 states. [2018-10-24 14:08:19,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:19,522 INFO L93 Difference]: Finished difference Result 221127 states and 230919 transitions. [2018-10-24 14:08:19,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-24 14:08:19,523 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 595 [2018-10-24 14:08:19,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:19,661 INFO L225 Difference]: With dead ends: 221127 [2018-10-24 14:08:19,661 INFO L226 Difference]: Without dead ends: 118079 [2018-10-24 14:08:19,711 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 612 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2018-10-24 14:08:19,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118079 states. [2018-10-24 14:08:20,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118079 to 105295. [2018-10-24 14:08:20,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105295 states. [2018-10-24 14:08:20,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105295 states to 105295 states and 108917 transitions. [2018-10-24 14:08:20,672 INFO L78 Accepts]: Start accepts. Automaton has 105295 states and 108917 transitions. Word has length 595 [2018-10-24 14:08:20,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:20,673 INFO L481 AbstractCegarLoop]: Abstraction has 105295 states and 108917 transitions. [2018-10-24 14:08:20,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:08:20,673 INFO L276 IsEmpty]: Start isEmpty. Operand 105295 states and 108917 transitions. [2018-10-24 14:08:21,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 897 [2018-10-24 14:08:21,148 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:21,149 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:21,149 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:21,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:21,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1102714161, now seen corresponding path program 1 times [2018-10-24 14:08:21,150 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:21,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:21,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:21,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:21,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:21,844 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-10-24 14:08:21,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:08:21,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:08:21,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:08:21,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:08:21,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:08:21,846 INFO L87 Difference]: Start difference. First operand 105295 states and 108917 transitions. Second operand 3 states. [2018-10-24 14:08:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:28,254 INFO L93 Difference]: Finished difference Result 209836 states and 217075 transitions. [2018-10-24 14:08:28,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:08:28,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 896 [2018-10-24 14:08:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:28,368 INFO L225 Difference]: With dead ends: 209836 [2018-10-24 14:08:28,369 INFO L226 Difference]: Without dead ends: 105295 [2018-10-24 14:08:28,424 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 14:08:28,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105295 states. [2018-10-24 14:08:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105295 to 103039. [2018-10-24 14:08:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103039 states. [2018-10-24 14:08:29,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103039 states to 103039 states and 105535 transitions. [2018-10-24 14:08:29,815 INFO L78 Accepts]: Start accepts. Automaton has 103039 states and 105535 transitions. Word has length 896 [2018-10-24 14:08:29,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:29,816 INFO L481 AbstractCegarLoop]: Abstraction has 103039 states and 105535 transitions. [2018-10-24 14:08:29,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:08:29,816 INFO L276 IsEmpty]: Start isEmpty. Operand 103039 states and 105535 transitions. [2018-10-24 14:08:29,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 929 [2018-10-24 14:08:29,857 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:29,858 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:29,858 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:29,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:29,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1631882367, now seen corresponding path program 1 times [2018-10-24 14:08:29,859 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:29,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:29,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:29,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:29,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:30,675 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-24 14:08:32,072 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 441 proven. 70 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 14:08:32,073 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:08:32,073 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 14:08:32,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:32,313 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:08:34,404 INFO L134 CoverageAnalysis]: Checked inductivity of 628 backedges. 441 proven. 70 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-10-24 14:08:34,425 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:08:34,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2018-10-24 14:08:34,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:08:34,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:08:34,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:08:34,429 INFO L87 Difference]: Start difference. First operand 103039 states and 105535 transitions. Second operand 6 states. [2018-10-24 14:08:47,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:08:47,526 INFO L93 Difference]: Finished difference Result 220364 states and 225714 transitions. [2018-10-24 14:08:47,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 14:08:47,527 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 928 [2018-10-24 14:08:47,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:08:47,666 INFO L225 Difference]: With dead ends: 220364 [2018-10-24 14:08:47,666 INFO L226 Difference]: Without dead ends: 118079 [2018-10-24 14:08:47,731 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 932 GetRequests, 927 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:08:47,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118079 states. [2018-10-24 14:08:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118079 to 109807. [2018-10-24 14:08:49,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109807 states. [2018-10-24 14:08:49,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109807 states to 109807 states and 112316 transitions. [2018-10-24 14:08:49,276 INFO L78 Accepts]: Start accepts. Automaton has 109807 states and 112316 transitions. Word has length 928 [2018-10-24 14:08:49,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:08:49,278 INFO L481 AbstractCegarLoop]: Abstraction has 109807 states and 112316 transitions. [2018-10-24 14:08:49,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:08:49,278 INFO L276 IsEmpty]: Start isEmpty. Operand 109807 states and 112316 transitions. [2018-10-24 14:08:49,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1039 [2018-10-24 14:08:49,343 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:08:49,344 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:49,344 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:08:49,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:08:49,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1350264206, now seen corresponding path program 1 times [2018-10-24 14:08:49,345 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:08:49,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:08:49,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:49,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:49,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:08:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:51,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 634 proven. 86 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-10-24 14:08:51,169 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:08:51,169 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 14:08:51,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:08:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:08:51,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:08:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 634 proven. 86 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-10-24 14:08:53,111 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 14:08:53,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-10-24 14:08:53,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:08:53,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:08:53,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:08:53,113 INFO L87 Difference]: Start difference. First operand 109807 states and 112316 transitions. Second operand 7 states. [2018-10-24 14:09:10,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:09:10,388 INFO L93 Difference]: Finished difference Result 289549 states and 295949 transitions. [2018-10-24 14:09:10,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:09:10,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1038 [2018-10-24 14:09:10,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:09:10,564 INFO L225 Difference]: With dead ends: 289549 [2018-10-24 14:09:10,564 INFO L226 Difference]: Without dead ends: 180496 [2018-10-24 14:09:10,624 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1042 GetRequests, 1036 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:09:10,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180496 states. Received shutdown request... [2018-10-24 14:09:11,068 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:09:11,072 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:09:11,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:09:11 BoogieIcfgContainer [2018-10-24 14:09:11,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:09:11,073 INFO L168 Benchmark]: Toolchain (without parser) took 232493.48 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -701.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 14:09:11,074 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:09:11,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2167.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:09:11,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 651.72 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 813.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. [2018-10-24 14:09:11,077 INFO L168 Benchmark]: Boogie Preprocessor took 375.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:09:11,077 INFO L168 Benchmark]: RCFGBuilder took 9793.32 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 219.2 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -174.2 MB). Peak memory consumption was 629.2 MB. Max. memory is 7.1 GB. [2018-10-24 14:09:11,078 INFO L168 Benchmark]: TraceAbstraction took 219497.59 ms. Allocated memory was 2.6 GB in the beginning and 3.6 GB in the end (delta: 1.0 GB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 226.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 14:09:11,084 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2167.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 651.72 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 813.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 68.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 375.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9793.32 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 219.2 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -174.2 MB). Peak memory consumption was 629.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219497.59 ms. Allocated memory was 2.6 GB in the beginning and 3.6 GB in the end (delta: 1.0 GB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 226.8 MB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 45). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 819 locations, 1 error locations. TIMEOUT Result, 219.4s OverallTime, 14 OverallIterations, 6 TraceHistogramMax, 189.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7401 SDtfs, 42450 SDslu, 1274 SDs, 0 SdLazy, 99103 SolverSat, 16288 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 154.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3302 GetRequests, 3232 SyntacticMatches, 12 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109807occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 10.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 65463 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 9300 NumberOfCodeBlocks, 9300 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 9281 ConstructedInterpolants, 87 QuantifiedInterpolants, 23955634 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3937 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 7515/8100 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown