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/Problem19_label01_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 20:58:01,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 20:58:01,545 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 20:58:01,562 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 20:58:01,562 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 20:58:01,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 20:58:01,564 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 20:58:01,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 20:58:01,568 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 20:58:01,569 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 20:58:01,570 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 20:58:01,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 20:58:01,571 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 20:58:01,572 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 20:58:01,573 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 20:58:01,574 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 20:58:01,575 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 20:58:01,577 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 20:58:01,579 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 20:58:01,581 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 20:58:01,582 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 20:58:01,583 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 20:58:01,585 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 20:58:01,594 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 [2018-10-23 20:58:01,619 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 20:58:01,619 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 20:58:01,620 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 20:58:01,621 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 20:58:01,621 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 20:58:01,621 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 20:58:01,622 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 20:58:01,622 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 20:58:01,622 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 20:58:01,622 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 20:58:01,622 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 20:58:01,623 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 20:58:01,624 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 20:58:01,624 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 20:58:01,624 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 20:58:01,624 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 20:58:01,625 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 20:58:01,625 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 20:58:01,625 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 20:58:01,625 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:58:01,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 20:58:01,626 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 20:58:01,627 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 20:58:01,627 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 20:58:01,627 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 20:58:01,628 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 20:58:01,628 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 20:58:01,628 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 20:58:01,691 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 20:58:01,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 20:58:01,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 20:58:01,709 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 20:58:01,710 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 20:58:01,711 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label01_true-unreach-call.c [2018-10-23 20:58:01,773 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/075a3d5a6/ca48261efea444489468dc0d9e69437f/FLAG1c24063e8 [2018-10-23 20:58:02,645 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 20:58:02,646 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label01_true-unreach-call.c [2018-10-23 20:58:02,695 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/075a3d5a6/ca48261efea444489468dc0d9e69437f/FLAG1c24063e8 [2018-10-23 20:58:02,713 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/075a3d5a6/ca48261efea444489468dc0d9e69437f [2018-10-23 20:58:02,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 20:58:02,728 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 20:58:02,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 20:58:02,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 20:58:02,733 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 20:58:02,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:58:02" (1/1) ... [2018-10-23 20:58:02,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3e8be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:02, skipping insertion in model container [2018-10-23 20:58:02,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:58:02" (1/1) ... [2018-10-23 20:58:02,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 20:58:03,015 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 20:58:05,020 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:58:05,024 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 20:58:06,186 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:58:06,242 INFO L193 MainTranslator]: Completed translation [2018-10-23 20:58:06,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06 WrapperNode [2018-10-23 20:58:06,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 20:58:06,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 20:58:06,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 20:58:06,245 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 20:58:06,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (1/1) ... [2018-10-23 20:58:06,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (1/1) ... [2018-10-23 20:58:07,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 20:58:07,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 20:58:07,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 20:58:07,493 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 20:58:07,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (1/1) ... [2018-10-23 20:58:07,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (1/1) ... [2018-10-23 20:58:07,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (1/1) ... [2018-10-23 20:58:07,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (1/1) ... [2018-10-23 20:58:07,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (1/1) ... [2018-10-23 20:58:08,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (1/1) ... [2018-10-23 20:58:08,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (1/1) ... [2018-10-23 20:58:08,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 20:58:08,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 20:58:08,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 20:58:08,346 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 20:58:08,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (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 [2018-10-23 20:58:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 20:58:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 20:58:08,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 20:58:25,765 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 20:58:25,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:58:25 BoogieIcfgContainer [2018-10-23 20:58:25,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 20:58:25,768 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 20:58:25,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 20:58:25,772 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 20:58:25,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:58:02" (1/3) ... [2018-10-23 20:58:25,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c3e1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:58:25, skipping insertion in model container [2018-10-23 20:58:25,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:58:06" (2/3) ... [2018-10-23 20:58:25,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c3e1b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:58:25, skipping insertion in model container [2018-10-23 20:58:25,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:58:25" (3/3) ... [2018-10-23 20:58:25,776 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label01_true-unreach-call.c [2018-10-23 20:58:25,786 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 20:58:25,796 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 20:58:25,814 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 20:58:25,866 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 20:58:25,867 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 20:58:25,867 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 20:58:25,867 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 20:58:25,867 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 20:58:25,867 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 20:58:25,868 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 20:58:25,868 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 20:58:25,868 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 20:58:26,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-23 20:58:26,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-23 20:58:26,231 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:58:26,232 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:58:26,235 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:58:26,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:58:26,246 INFO L82 PathProgramCache]: Analyzing trace with hash -344880110, now seen corresponding path program 1 times [2018-10-23 20:58:26,248 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:58:26,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:58:26,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:58:26,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:58:26,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:58:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:58:26,836 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 20:58:27,717 WARN L179 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 24 [2018-10-23 20:58:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:58:27,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:58:27,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 20:58:27,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 20:58:27,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 20:58:27,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:58:27,956 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 6 states. [2018-10-23 20:59:11,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:59:11,334 INFO L93 Difference]: Finished difference Result 9027 states and 17501 transitions. [2018-10-23 20:59:11,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 20:59:11,337 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-10-23 20:59:11,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:59:11,409 INFO L225 Difference]: With dead ends: 9027 [2018-10-23 20:59:11,410 INFO L226 Difference]: Without dead ends: 7265 [2018-10-23 20:59:11,424 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-23 20:59:11,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2018-10-23 20:59:11,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 5894. [2018-10-23 20:59:11,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5894 states. [2018-10-23 20:59:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 8531 transitions. [2018-10-23 20:59:11,667 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 8531 transitions. Word has length 64 [2018-10-23 20:59:11,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:59:11,668 INFO L481 AbstractCegarLoop]: Abstraction has 5894 states and 8531 transitions. [2018-10-23 20:59:11,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 20:59:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 8531 transitions. [2018-10-23 20:59:11,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2018-10-23 20:59:11,686 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:59:11,690 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, 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] [2018-10-23 20:59:11,690 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:59:11,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:59:11,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2065591983, now seen corresponding path program 1 times [2018-10-23 20:59:11,691 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:59:11,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:59:11,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:59:11,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:59:11,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:59:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:59:12,403 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-23 20:59:12,890 WARN L179 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-23 20:59:13,364 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:59:13,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:59:13,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 20:59:13,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 20:59:13,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 20:59:13,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 20:59:13,368 INFO L87 Difference]: Start difference. First operand 5894 states and 8531 transitions. Second operand 7 states. [2018-10-23 20:59:52,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:59:52,149 INFO L93 Difference]: Finished difference Result 19998 states and 30777 transitions. [2018-10-23 20:59:52,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 20:59:52,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 272 [2018-10-23 20:59:52,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:59:52,210 INFO L225 Difference]: With dead ends: 19998 [2018-10-23 20:59:52,210 INFO L226 Difference]: Without dead ends: 14106 [2018-10-23 20:59:52,220 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-23 20:59:52,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14106 states. [2018-10-23 20:59:52,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14106 to 11371. [2018-10-23 20:59:52,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11371 states. [2018-10-23 20:59:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11371 states to 11371 states and 14248 transitions. [2018-10-23 20:59:52,414 INFO L78 Accepts]: Start accepts. Automaton has 11371 states and 14248 transitions. Word has length 272 [2018-10-23 20:59:52,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:59:52,416 INFO L481 AbstractCegarLoop]: Abstraction has 11371 states and 14248 transitions. [2018-10-23 20:59:52,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 20:59:52,416 INFO L276 IsEmpty]: Start isEmpty. Operand 11371 states and 14248 transitions. [2018-10-23 20:59:52,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-10-23 20:59:52,425 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:59:52,425 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, 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] [2018-10-23 20:59:52,425 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:59:52,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:59:52,426 INFO L82 PathProgramCache]: Analyzing trace with hash 378048491, now seen corresponding path program 1 times [2018-10-23 20:59:52,426 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:59:52,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:59:52,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:59:52,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:59:52,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:59:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:59:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:59:52,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:59:52,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:59:52,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:59:52,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:59:52,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:59:52,979 INFO L87 Difference]: Start difference. First operand 11371 states and 14248 transitions. Second operand 4 states. [2018-10-23 21:00:12,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:00:12,348 INFO L93 Difference]: Finished difference Result 29726 states and 40703 transitions. [2018-10-23 21:00:12,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:00:12,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 300 [2018-10-23 21:00:12,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:00:12,406 INFO L225 Difference]: With dead ends: 29726 [2018-10-23 21:00:12,406 INFO L226 Difference]: Without dead ends: 16990 [2018-10-23 21:00:12,422 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:00:12,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16990 states. [2018-10-23 21:00:12,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16990 to 16899. [2018-10-23 21:00:12,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16899 states. [2018-10-23 21:00:12,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16899 states to 16899 states and 23134 transitions. [2018-10-23 21:00:12,713 INFO L78 Accepts]: Start accepts. Automaton has 16899 states and 23134 transitions. Word has length 300 [2018-10-23 21:00:12,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:00:12,714 INFO L481 AbstractCegarLoop]: Abstraction has 16899 states and 23134 transitions. [2018-10-23 21:00:12,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:00:12,714 INFO L276 IsEmpty]: Start isEmpty. Operand 16899 states and 23134 transitions. [2018-10-23 21:00:12,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-10-23 21:00:12,722 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:00:12,723 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 21:00:12,723 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:00:12,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:00:12,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1965923475, now seen corresponding path program 1 times [2018-10-23 21:00:12,724 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:00:12,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:00:12,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:12,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:00:12,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:00:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 123 proven. 4 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2018-10-23 21:00:13,356 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:00:13,356 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 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 [2018-10-23 21:00:13,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:00:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:00:13,662 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:00:13,864 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 21:00:13,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:00:13,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-23 21:00:13,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 21:00:13,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 21:00:13,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:00:13,906 INFO L87 Difference]: Start difference. First operand 16899 states and 23134 transitions. Second operand 4 states. [2018-10-23 21:00:37,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:00:37,927 INFO L93 Difference]: Finished difference Result 58616 states and 83259 transitions. [2018-10-23 21:00:37,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:00:37,928 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 406 [2018-10-23 21:00:37,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:00:38,015 INFO L225 Difference]: With dead ends: 58616 [2018-10-23 21:00:38,015 INFO L226 Difference]: Without dead ends: 43085 [2018-10-23 21:00:38,037 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 21:00:38,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43085 states. [2018-10-23 21:00:38,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43085 to 27823. [2018-10-23 21:00:38,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27823 states. [2018-10-23 21:00:38,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27823 states to 27823 states and 38990 transitions. [2018-10-23 21:00:38,626 INFO L78 Accepts]: Start accepts. Automaton has 27823 states and 38990 transitions. Word has length 406 [2018-10-23 21:00:38,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:00:38,626 INFO L481 AbstractCegarLoop]: Abstraction has 27823 states and 38990 transitions. [2018-10-23 21:00:38,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 21:00:38,627 INFO L276 IsEmpty]: Start isEmpty. Operand 27823 states and 38990 transitions. [2018-10-23 21:00:38,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2018-10-23 21:00:38,637 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:00:38,638 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, 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, 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] [2018-10-23 21:00:38,638 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:00:38,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:00:38,639 INFO L82 PathProgramCache]: Analyzing trace with hash -686471672, now seen corresponding path program 1 times [2018-10-23 21:00:38,639 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:00:38,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:00:38,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:38,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:00:38,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:00:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:00:39,337 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 316 proven. 5 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2018-10-23 21:00:39,338 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:00:39,338 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 [2018-10-23 21:00:39,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:00:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:00:39,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:00:39,760 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 411 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-10-23 21:00:39,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:00:39,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-23 21:00:39,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:00:39,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:00:39,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:00:39,791 INFO L87 Difference]: Start difference. First operand 27823 states and 38990 transitions. Second operand 5 states. [2018-10-23 21:01:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:01:16,234 INFO L93 Difference]: Finished difference Result 143178 states and 214449 transitions. [2018-10-23 21:01:16,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 21:01:16,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 494 [2018-10-23 21:01:16,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:01:16,480 INFO L225 Difference]: With dead ends: 143178 [2018-10-23 21:01:16,480 INFO L226 Difference]: Without dead ends: 116723 [2018-10-23 21:01:16,528 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 21:01:16,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116723 states. [2018-10-23 21:01:18,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116723 to 113941. [2018-10-23 21:01:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113941 states. [2018-10-23 21:01:18,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113941 states to 113941 states and 141288 transitions. [2018-10-23 21:01:18,223 INFO L78 Accepts]: Start accepts. Automaton has 113941 states and 141288 transitions. Word has length 494 [2018-10-23 21:01:18,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:01:18,224 INFO L481 AbstractCegarLoop]: Abstraction has 113941 states and 141288 transitions. [2018-10-23 21:01:18,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:01:18,224 INFO L276 IsEmpty]: Start isEmpty. Operand 113941 states and 141288 transitions. [2018-10-23 21:01:18,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2018-10-23 21:01:18,242 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:01:18,243 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 21:01:18,243 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:01:18,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:01:18,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1710028180, now seen corresponding path program 1 times [2018-10-23 21:01:18,244 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:01:18,244 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:01:18,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:01:18,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:01:18,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:01:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:01:18,857 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-23 21:01:19,640 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 490 proven. 4 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-10-23 21:01:19,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:01:19,640 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 [2018-10-23 21:01:19,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:01:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:01:19,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:01:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 725 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2018-10-23 21:01:20,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:01:20,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2018-10-23 21:01:20,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:01:20,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:01:20,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:01:20,156 INFO L87 Difference]: Start difference. First operand 113941 states and 141288 transitions. Second operand 5 states. [2018-10-23 21:01:41,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 21:01:41,891 INFO L93 Difference]: Finished difference Result 240176 states and 295497 transitions. [2018-10-23 21:01:41,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-23 21:01:41,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 681 [2018-10-23 21:01:41,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 21:01:42,004 INFO L225 Difference]: With dead ends: 240176 [2018-10-23 21:01:42,004 INFO L226 Difference]: Without dead ends: 123502 [2018-10-23 21:01:42,074 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 681 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 21:01:42,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123502 states. [2018-10-23 21:01:43,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123502 to 112562. [2018-10-23 21:01:43,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112562 states. [2018-10-23 21:01:43,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112562 states to 112562 states and 130050 transitions. [2018-10-23 21:01:43,720 INFO L78 Accepts]: Start accepts. Automaton has 112562 states and 130050 transitions. Word has length 681 [2018-10-23 21:01:43,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 21:01:43,720 INFO L481 AbstractCegarLoop]: Abstraction has 112562 states and 130050 transitions. [2018-10-23 21:01:43,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 21:01:43,721 INFO L276 IsEmpty]: Start isEmpty. Operand 112562 states and 130050 transitions. [2018-10-23 21:01:43,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2018-10-23 21:01:43,730 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 21:01:43,731 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 21:01:43,731 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 21:01:43,732 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 21:01:43,732 INFO L82 PathProgramCache]: Analyzing trace with hash -178452482, now seen corresponding path program 1 times [2018-10-23 21:01:43,732 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 21:01:43,732 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 21:01:43,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:01:43,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:01:43,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 21:01:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:01:45,172 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 318 proven. 72 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2018-10-23 21:01:45,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 21:01:45,173 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 [2018-10-23 21:01:46,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 21:01:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 21:01:46,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 21:01:47,137 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-10-23 21:01:47,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 21:01:47,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-23 21:01:47,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 21:01:47,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 21:01:47,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 21:01:47,181 INFO L87 Difference]: Start difference. First operand 112562 states and 130050 transitions. Second operand 5 states. Received shutdown request... [2018-10-23 21:02:00,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 21:02:00,745 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 21:02:00,752 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 21:02:00,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:02:00 BoogieIcfgContainer [2018-10-23 21:02:00,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 21:02:00,754 INFO L168 Benchmark]: Toolchain (without parser) took 238026.56 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -540.8 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-23 21:02:00,755 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-23 21:02:00,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3514.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 955.4 MB in the end (delta: 404.3 MB). Peak memory consumption was 404.3 MB. Max. memory is 7.1 GB. [2018-10-23 21:02:00,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 1248.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 837.8 MB). Free memory was 955.4 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 111.8 MB. Max. memory is 7.1 GB. [2018-10-23 21:02:00,757 INFO L168 Benchmark]: Boogie Preprocessor took 852.69 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 102.5 MB). Peak memory consumption was 102.5 MB. Max. memory is 7.1 GB. [2018-10-23 21:02:00,758 INFO L168 Benchmark]: RCFGBuilder took 17421.32 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 266.9 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 513.4 MB). Peak memory consumption was 780.3 MB. Max. memory is 7.1 GB. [2018-10-23 21:02:00,759 INFO L168 Benchmark]: TraceAbstraction took 214984.78 ms. Allocated memory was 2.6 GB in the beginning and 3.6 GB in the end (delta: 1.0 GB). Free memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: -437.0 MB). Peak memory consumption was 586.9 MB. Max. memory is 7.1 GB. [2018-10-23 21:02:00,765 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 3514.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 955.4 MB in the end (delta: 404.3 MB). Peak memory consumption was 404.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1248.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 837.8 MB). Free memory was 955.4 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 111.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 852.69 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 102.5 MB). Peak memory consumption was 102.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17421.32 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 266.9 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 513.4 MB). Peak memory consumption was 780.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 214984.78 ms. Allocated memory was 2.6 GB in the beginning and 3.6 GB in the end (delta: 1.0 GB). Free memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: -437.0 MB). Peak memory consumption was 586.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 205]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 205). Cancelled while BasicCegarLoop was constructing difference of abstraction (112562states) and FLOYD_HOARE automaton (currently 4 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (170311 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 214.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 198.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8273 SDtfs, 44893 SDslu, 3370 SDs, 0 SdLazy, 91018 SolverSat, 22810 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 169.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2507 GetRequests, 2469 SyntacticMatches, 8 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113941occurred in iteration=5, 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: 4.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 33181 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 5566 NumberOfCodeBlocks, 5566 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 5555 ConstructedInterpolants, 0 QuantifiedInterpolants, 11758730 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2905 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 4115/4200 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown