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/Problem11_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:13:16,327 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:13:16,330 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:13:16,343 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:13:16,344 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:13:16,345 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:13:16,346 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:13:16,348 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:13:16,350 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:13:16,351 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:13:16,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:13:16,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:13:16,353 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:13:16,356 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:13:16,358 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:13:16,358 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:13:16,368 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:13:16,369 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:13:16,373 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:13:16,375 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:13:16,378 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:13:16,380 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:13:16,384 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:13:16,385 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:13:16,385 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:13:16,386 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:13:16,389 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:13:16,389 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:13:16,393 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:13:16,394 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:13:16,396 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:13:16,397 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-26 21:13:16,401 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 [2018-10-26 21:13:16,429 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:13:16,429 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:13:16,431 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:13:16,431 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 21:13:16,432 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 21:13:16,432 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 21:13:16,432 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 21:13:16,432 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:13:16,432 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:13:16,434 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:13:16,434 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:13:16,434 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:13:16,434 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:13:16,434 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:13:16,435 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:13:16,435 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:13:16,435 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:13:16,435 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:13:16,435 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:13:16,435 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:13:16,437 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:13:16,437 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:13:16,437 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:13:16,437 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 21:13:16,437 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:13:16,438 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:13:16,438 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:13:16,438 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 21:13:16,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:13:16,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:13:16,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:13:16,525 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:13:16,526 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:13:16,527 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label57_true-unreach-call.c [2018-10-26 21:13:16,596 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/247303907/ff74e1ac23da4e14b874a28d9250fae8/FLAGaf269c73c [2018-10-26 21:13:17,246 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:13:17,247 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label57_true-unreach-call.c [2018-10-26 21:13:17,274 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/247303907/ff74e1ac23da4e14b874a28d9250fae8/FLAGaf269c73c [2018-10-26 21:13:17,290 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/247303907/ff74e1ac23da4e14b874a28d9250fae8 [2018-10-26 21:13:17,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:13:17,304 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 21:13:17,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:13:17,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:13:17,310 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:13:17,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:13:17" (1/1) ... [2018-10-26 21:13:17,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11290b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:17, skipping insertion in model container [2018-10-26 21:13:17,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:13:17" (1/1) ... [2018-10-26 21:13:17,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:13:17,416 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:13:18,118 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:13:18,123 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:13:18,328 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:13:18,344 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:13:18,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18 WrapperNode [2018-10-26 21:13:18,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:13:18,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:13:18,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:13:18,346 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:13:18,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (1/1) ... [2018-10-26 21:13:18,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (1/1) ... [2018-10-26 21:13:18,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:13:18,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:13:18,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:13:18,613 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:13:18,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (1/1) ... [2018-10-26 21:13:18,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (1/1) ... [2018-10-26 21:13:18,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (1/1) ... [2018-10-26 21:13:18,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (1/1) ... [2018-10-26 21:13:18,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (1/1) ... [2018-10-26 21:13:18,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (1/1) ... [2018-10-26 21:13:18,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (1/1) ... [2018-10-26 21:13:18,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:13:18,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:13:18,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:13:18,752 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:13:18,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (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 [2018-10-26 21:13:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 21:13:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:13:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:13:23,438 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:13:23,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:13:23 BoogieIcfgContainer [2018-10-26 21:13:23,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:13:23,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:13:23,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:13:23,444 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:13:23,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:13:17" (1/3) ... [2018-10-26 21:13:23,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60428dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:13:23, skipping insertion in model container [2018-10-26 21:13:23,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:13:18" (2/3) ... [2018-10-26 21:13:23,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60428dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:13:23, skipping insertion in model container [2018-10-26 21:13:23,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:13:23" (3/3) ... [2018-10-26 21:13:23,448 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label57_true-unreach-call.c [2018-10-26 21:13:23,459 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:13:23,469 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:13:23,489 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:13:23,526 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:13:23,527 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:13:23,527 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:13:23,527 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:13:23,527 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:13:23,528 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:13:23,528 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:13:23,528 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:13:23,528 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:13:23,560 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2018-10-26 21:13:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-26 21:13:23,570 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:13:23,572 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:13:23,574 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:13:23,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:13:23,581 INFO L82 PathProgramCache]: Analyzing trace with hash 84973194, now seen corresponding path program 1 times [2018-10-26 21:13:23,583 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:13:23,584 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:13:23,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:23,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:13:23,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:13:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:13:24,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:13:24,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:13:24,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:13:24,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:13:24,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:13:24,156 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 4 states. [2018-10-26 21:13:27,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:13:27,666 INFO L93 Difference]: Finished difference Result 974 states and 1747 transitions. [2018-10-26 21:13:27,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:13:27,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2018-10-26 21:13:27,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:13:27,694 INFO L225 Difference]: With dead ends: 974 [2018-10-26 21:13:27,695 INFO L226 Difference]: Without dead ends: 683 [2018-10-26 21:13:27,700 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:13:27,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2018-10-26 21:13:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 677. [2018-10-26 21:13:27,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2018-10-26 21:13:27,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1087 transitions. [2018-10-26 21:13:27,807 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1087 transitions. Word has length 47 [2018-10-26 21:13:27,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:13:27,808 INFO L481 AbstractCegarLoop]: Abstraction has 677 states and 1087 transitions. [2018-10-26 21:13:27,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:13:27,808 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1087 transitions. [2018-10-26 21:13:27,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-26 21:13:27,813 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:13:27,813 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:13:27,813 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:13:27,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:13:27,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1103993199, now seen corresponding path program 1 times [2018-10-26 21:13:27,814 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:13:27,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:13:27,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:27,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:13:27,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:13:28,086 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:13:28,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:13:28,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:13:28,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:13:28,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:13:28,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:13:28,089 INFO L87 Difference]: Start difference. First operand 677 states and 1087 transitions. Second operand 4 states. [2018-10-26 21:13:33,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:13:33,155 INFO L93 Difference]: Finished difference Result 2487 states and 4110 transitions. [2018-10-26 21:13:33,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:13:33,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2018-10-26 21:13:33,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:13:33,170 INFO L225 Difference]: With dead ends: 2487 [2018-10-26 21:13:33,170 INFO L226 Difference]: Without dead ends: 1812 [2018-10-26 21:13:33,179 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:13:33,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2018-10-26 21:13:33,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1795. [2018-10-26 21:13:33,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1795 states. [2018-10-26 21:13:33,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2709 transitions. [2018-10-26 21:13:33,240 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2709 transitions. Word has length 117 [2018-10-26 21:13:33,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:13:33,241 INFO L481 AbstractCegarLoop]: Abstraction has 1795 states and 2709 transitions. [2018-10-26 21:13:33,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:13:33,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2709 transitions. [2018-10-26 21:13:33,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-10-26 21:13:33,256 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:13:33,256 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:13:33,258 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:13:33,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:13:33,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1314248931, now seen corresponding path program 1 times [2018-10-26 21:13:33,259 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:13:33,259 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:13:33,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:33,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:13:33,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:13:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-10-26 21:13:33,563 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:13:33,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:13:33,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:13:33,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:13:33,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:13:33,564 INFO L87 Difference]: Start difference. First operand 1795 states and 2709 transitions. Second operand 4 states. [2018-10-26 21:13:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:13:36,774 INFO L93 Difference]: Finished difference Result 6743 states and 10187 transitions. [2018-10-26 21:13:36,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:13:36,775 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 262 [2018-10-26 21:13:36,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:13:36,800 INFO L225 Difference]: With dead ends: 6743 [2018-10-26 21:13:36,800 INFO L226 Difference]: Without dead ends: 4950 [2018-10-26 21:13:36,804 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 [2018-10-26 21:13:36,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4950 states. [2018-10-26 21:13:36,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4950 to 4580. [2018-10-26 21:13:36,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4580 states. [2018-10-26 21:13:36,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 6235 transitions. [2018-10-26 21:13:36,896 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 6235 transitions. Word has length 262 [2018-10-26 21:13:36,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:13:36,897 INFO L481 AbstractCegarLoop]: Abstraction has 4580 states and 6235 transitions. [2018-10-26 21:13:36,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:13:36,897 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 6235 transitions. [2018-10-26 21:13:36,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-10-26 21:13:36,907 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:13:36,908 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2018-10-26 21:13:36,908 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:13:36,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:13:36,908 INFO L82 PathProgramCache]: Analyzing trace with hash 2142506900, now seen corresponding path program 1 times [2018-10-26 21:13:36,909 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:13:36,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:13:36,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:36,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:13:36,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:13:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-10-26 21:13:37,243 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:13:37,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:13:37,244 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:13:37,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:13:37,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:13:37,245 INFO L87 Difference]: Start difference. First operand 4580 states and 6235 transitions. Second operand 5 states. [2018-10-26 21:13:43,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:13:43,889 INFO L93 Difference]: Finished difference Result 10102 states and 13619 transitions. [2018-10-26 21:13:43,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-26 21:13:43,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 280 [2018-10-26 21:13:43,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:13:43,914 INFO L225 Difference]: With dead ends: 10102 [2018-10-26 21:13:43,914 INFO L226 Difference]: Without dead ends: 5338 [2018-10-26 21:13:43,921 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:13:43,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5338 states. [2018-10-26 21:13:44,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5338 to 4764. [2018-10-26 21:13:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4764 states. [2018-10-26 21:13:44,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4764 states to 4764 states and 6445 transitions. [2018-10-26 21:13:44,015 INFO L78 Accepts]: Start accepts. Automaton has 4764 states and 6445 transitions. Word has length 280 [2018-10-26 21:13:44,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:13:44,015 INFO L481 AbstractCegarLoop]: Abstraction has 4764 states and 6445 transitions. [2018-10-26 21:13:44,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:13:44,015 INFO L276 IsEmpty]: Start isEmpty. Operand 4764 states and 6445 transitions. [2018-10-26 21:13:44,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2018-10-26 21:13:44,027 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:13:44,028 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2018-10-26 21:13:44,028 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:13:44,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:13:44,029 INFO L82 PathProgramCache]: Analyzing trace with hash -939034974, now seen corresponding path program 1 times [2018-10-26 21:13:44,029 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:13:44,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:13:44,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:44,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:13:44,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:13:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-10-26 21:13:44,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:13:44,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:13:44,389 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:13:44,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:13:44,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:13:44,389 INFO L87 Difference]: Start difference. First operand 4764 states and 6445 transitions. Second operand 4 states. [2018-10-26 21:13:47,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:13:47,225 INFO L93 Difference]: Finished difference Result 12498 states and 16996 transitions. [2018-10-26 21:13:47,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:13:47,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 335 [2018-10-26 21:13:47,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:13:47,255 INFO L225 Difference]: With dead ends: 12498 [2018-10-26 21:13:47,255 INFO L226 Difference]: Without dead ends: 7736 [2018-10-26 21:13:47,262 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 [2018-10-26 21:13:47,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7736 states. [2018-10-26 21:13:47,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7736 to 7532. [2018-10-26 21:13:47,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7532 states. [2018-10-26 21:13:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7532 states to 7532 states and 9775 transitions. [2018-10-26 21:13:47,387 INFO L78 Accepts]: Start accepts. Automaton has 7532 states and 9775 transitions. Word has length 335 [2018-10-26 21:13:47,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:13:47,388 INFO L481 AbstractCegarLoop]: Abstraction has 7532 states and 9775 transitions. [2018-10-26 21:13:47,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:13:47,388 INFO L276 IsEmpty]: Start isEmpty. Operand 7532 states and 9775 transitions. [2018-10-26 21:13:47,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-10-26 21:13:47,403 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:13:47,404 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:13:47,404 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:13:47,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:13:47,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1025622735, now seen corresponding path program 1 times [2018-10-26 21:13:47,405 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:13:47,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:13:47,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:47,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:13:47,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:13:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:13:48,158 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 45 proven. 187 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:13:48,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:13:48,159 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 [2018-10-26 21:13:48,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:13:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:13:48,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:13:48,662 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-26 21:13:51,234 WARN L179 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 48 DAG size of output: 24 [2018-10-26 21:13:51,727 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-10-26 21:13:52,573 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 16 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:13:52,595 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 21:13:52,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-10-26 21:13:52,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-26 21:13:52,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-26 21:13:52,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2018-10-26 21:13:52,597 INFO L87 Difference]: Start difference. First operand 7532 states and 9775 transitions. Second operand 10 states. [2018-10-26 21:13:55,871 WARN L179 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 31 [2018-10-26 21:13:58,727 WARN L179 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-10-26 21:14:13,193 WARN L179 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 30 [2018-10-26 21:17:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:17:31,535 INFO L93 Difference]: Finished difference Result 38097 states and 50552 transitions. [2018-10-26 21:17:31,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-10-26 21:17:31,536 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 354 [2018-10-26 21:17:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:17:31,619 INFO L225 Difference]: With dead ends: 38097 [2018-10-26 21:17:31,620 INFO L226 Difference]: Without dead ends: 29263 [2018-10-26 21:17:31,634 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=224, Invalid=701, Unknown=5, NotChecked=0, Total=930 [2018-10-26 21:17:31,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29263 states. [2018-10-26 21:17:32,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29263 to 24200. [2018-10-26 21:17:32,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24200 states. [2018-10-26 21:17:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24200 states to 24200 states and 29890 transitions. [2018-10-26 21:17:32,117 INFO L78 Accepts]: Start accepts. Automaton has 24200 states and 29890 transitions. Word has length 354 [2018-10-26 21:17:32,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:17:32,118 INFO L481 AbstractCegarLoop]: Abstraction has 24200 states and 29890 transitions. [2018-10-26 21:17:32,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-26 21:17:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 24200 states and 29890 transitions. [2018-10-26 21:17:32,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2018-10-26 21:17:32,164 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:17:32,165 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 21:17:32,165 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:17:32,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:17:32,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1855735118, now seen corresponding path program 1 times [2018-10-26 21:17:32,166 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:17:32,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:17:32,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:32,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:17:32,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:17:32,870 WARN L179 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-10-26 21:17:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 439 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-10-26 21:17:33,181 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:17:33,181 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 [2018-10-26 21:17:33,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:17:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:17:33,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:17:33,865 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-10-26 21:17:33,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-26 21:17:33,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-26 21:17:33,901 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 21:17:33,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 21:17:33,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:17:33,901 INFO L87 Difference]: Start difference. First operand 24200 states and 29890 transitions. Second operand 7 states. [2018-10-26 21:17:39,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:17:39,206 INFO L93 Difference]: Finished difference Result 49139 states and 60511 transitions. [2018-10-26 21:17:39,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 21:17:39,206 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 460 [2018-10-26 21:17:39,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:17:39,251 INFO L225 Difference]: With dead ends: 49139 [2018-10-26 21:17:39,252 INFO L226 Difference]: Without dead ends: 25311 [2018-10-26 21:17:39,280 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-10-26 21:17:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25311 states. [2018-10-26 21:17:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25311 to 21969. [2018-10-26 21:17:39,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21969 states. [2018-10-26 21:17:39,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21969 states to 21969 states and 26493 transitions. [2018-10-26 21:17:39,627 INFO L78 Accepts]: Start accepts. Automaton has 21969 states and 26493 transitions. Word has length 460 [2018-10-26 21:17:39,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:17:39,628 INFO L481 AbstractCegarLoop]: Abstraction has 21969 states and 26493 transitions. [2018-10-26 21:17:39,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 21:17:39,628 INFO L276 IsEmpty]: Start isEmpty. Operand 21969 states and 26493 transitions. [2018-10-26 21:17:39,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2018-10-26 21:17:39,672 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:17:39,672 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:17:39,673 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:17:39,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:17:39,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1140478088, now seen corresponding path program 1 times [2018-10-26 21:17:39,673 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 21:17:39,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 21:17:39,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:39,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:17:39,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:17:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-26 21:17:39,870 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:215) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:919) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-26 21:17:39,874 INFO L168 Benchmark]: Toolchain (without parser) took 262571.97 ms. Allocated memory was 1.5 GB in the beginning and 2.7 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -282.1 MB). Peak memory consumption was 870.3 MB. Max. memory is 7.1 GB. [2018-10-26 21:17:39,876 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 21:17:39,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1040.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-26 21:17:39,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 266.70 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-26 21:17:39,879 INFO L168 Benchmark]: Boogie Preprocessor took 138.84 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-26 21:17:39,879 INFO L168 Benchmark]: RCFGBuilder took 4687.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 174.1 MB). Peak memory consumption was 174.1 MB. Max. memory is 7.1 GB. [2018-10-26 21:17:39,881 INFO L168 Benchmark]: TraceAbstraction took 256433.22 ms. Allocated memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: 422.1 MB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 288.5 MB). Peak memory consumption was 710.6 MB. Max. memory is 7.1 GB. [2018-10-26 21:17:39,887 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1040.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 266.70 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -811.2 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.84 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4687.69 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 174.1 MB). Peak memory consumption was 174.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 256433.22 ms. Allocated memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: 422.1 MB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 288.5 MB). Peak memory consumption was 710.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:215) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown