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/Problem13_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 20:21:24,240 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 20:21:24,244 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 20:21:24,261 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 20:21:24,262 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 20:21:24,264 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 20:21:24,265 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 20:21:24,267 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 20:21:24,270 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 20:21:24,279 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 20:21:24,280 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 20:21:24,280 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 20:21:24,281 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 20:21:24,282 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 20:21:24,286 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 20:21:24,287 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 20:21:24,288 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 20:21:24,290 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 20:21:24,294 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 20:21:24,296 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 20:21:24,297 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 20:21:24,300 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 20:21:24,303 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 20:21:24,304 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 20:21:24,304 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 20:21:24,305 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 20:21:24,306 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 20:21:24,306 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 20:21:24,307 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 20:21:24,308 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 20:21:24,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 20:21:24,309 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-23 20:21:24,311 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 20:21:24,335 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 20:21:24,336 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 20:21:24,338 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 20:21:24,341 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 20:21:24,342 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 20:21:24,342 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 20:21:24,342 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 20:21:24,342 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 20:21:24,342 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 20:21:24,343 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 20:21:24,344 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 20:21:24,344 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 20:21:24,344 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 20:21:24,344 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 20:21:24,345 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 20:21:24,345 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 20:21:24,345 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 20:21:24,345 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 20:21:24,345 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 20:21:24,345 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 20:21:24,346 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 20:21:24,346 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 20:21:24,346 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 20:21:24,346 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 20:21:24,346 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 20:21:24,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 20:21:24,348 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 20:21:24,348 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 20:21:24,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 20:21:24,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 20:21:24,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 20:21:24,415 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 20:21:24,416 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 20:21:24,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-23 20:21:24,480 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ccfa33f27/a167de15071b4590974ea7766ab821fb/FLAG7aeb063d6 [2018-10-23 20:21:25,288 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 20:21:25,289 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-23 20:21:25,332 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ccfa33f27/a167de15071b4590974ea7766ab821fb/FLAG7aeb063d6 [2018-10-23 20:21:25,353 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ccfa33f27/a167de15071b4590974ea7766ab821fb [2018-10-23 20:21:25,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 20:21:25,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 20:21:25,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 20:21:25,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 20:21:25,375 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 20:21:25,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:21:25" (1/1) ... [2018-10-23 20:21:25,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5038a34a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:25, skipping insertion in model container [2018-10-23 20:21:25,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:21:25" (1/1) ... [2018-10-23 20:21:25,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 20:21:25,582 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 20:21:26,999 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:21:27,003 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 20:21:27,833 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 20:21:27,875 INFO L193 MainTranslator]: Completed translation [2018-10-23 20:21:27,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27 WrapperNode [2018-10-23 20:21:27,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 20:21:27,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 20:21:27,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 20:21:27,878 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 20:21:27,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (1/1) ... [2018-10-23 20:21:27,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (1/1) ... [2018-10-23 20:21:28,749 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 20:21:28,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 20:21:28,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 20:21:28,749 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 20:21:28,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (1/1) ... [2018-10-23 20:21:28,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (1/1) ... [2018-10-23 20:21:28,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (1/1) ... [2018-10-23 20:21:28,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (1/1) ... [2018-10-23 20:21:29,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (1/1) ... [2018-10-23 20:21:29,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (1/1) ... [2018-10-23 20:21:29,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (1/1) ... [2018-10-23 20:21:29,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 20:21:29,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 20:21:29,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 20:21:29,314 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 20:21:29,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (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 20:21:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 20:21:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 20:21:29,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 20:21:45,418 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 20:21:45,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:21:45 BoogieIcfgContainer [2018-10-23 20:21:45,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 20:21:45,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 20:21:45,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 20:21:45,424 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 20:21:45,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:21:25" (1/3) ... [2018-10-23 20:21:45,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@812b6f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:21:45, skipping insertion in model container [2018-10-23 20:21:45,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:21:27" (2/3) ... [2018-10-23 20:21:45,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@812b6f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:21:45, skipping insertion in model container [2018-10-23 20:21:45,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:21:45" (3/3) ... [2018-10-23 20:21:45,428 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label47_true-unreach-call.c [2018-10-23 20:21:45,437 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 20:21:45,446 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 20:21:45,462 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 20:21:45,519 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 20:21:45,519 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 20:21:45,520 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 20:21:45,520 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 20:21:45,520 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 20:21:45,520 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 20:21:45,520 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 20:21:45,520 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 20:21:45,520 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 20:21:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2018-10-23 20:21:45,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-23 20:21:45,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:21:45,579 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] [2018-10-23 20:21:45,581 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:21:45,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:21:45,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1934902334, now seen corresponding path program 1 times [2018-10-23 20:21:45,590 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:21:45,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:21:45,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:45,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:21:45,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:21:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:21:46,528 WARN L179 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2018-10-23 20:21:46,898 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 20:21:46,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:21:46,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:21:46,906 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:21:46,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:21:46,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:21:46,926 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 5 states. [2018-10-23 20:22:07,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:07,814 INFO L93 Difference]: Finished difference Result 4624 states and 8784 transitions. [2018-10-23 20:22:07,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:22:07,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-10-23 20:22:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:07,866 INFO L225 Difference]: With dead ends: 4624 [2018-10-23 20:22:07,866 INFO L226 Difference]: Without dead ends: 3515 [2018-10-23 20:22:07,876 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-10-23 20:22:08,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3515 states. [2018-10-23 20:22:08,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3515 to 3514. [2018-10-23 20:22:08,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3514 states. [2018-10-23 20:22:08,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 5233 transitions. [2018-10-23 20:22:08,197 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 5233 transitions. Word has length 44 [2018-10-23 20:22:08,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:08,198 INFO L481 AbstractCegarLoop]: Abstraction has 3514 states and 5233 transitions. [2018-10-23 20:22:08,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:22:08,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 5233 transitions. [2018-10-23 20:22:08,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-10-23 20:22:08,206 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:08,207 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:08,207 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:08,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:08,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1885445779, now seen corresponding path program 1 times [2018-10-23 20:22:08,208 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:08,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:08,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:08,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:08,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:08,751 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-10-23 20:22:08,751 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:22:08,752 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 20:22:08,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:08,870 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:22:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-10-23 20:22:09,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:22:09,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2018-10-23 20:22:09,075 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:22:09,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:22:09,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:22:09,076 INFO L87 Difference]: Start difference. First operand 3514 states and 5233 transitions. Second operand 5 states. [2018-10-23 20:22:24,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:24,626 INFO L93 Difference]: Finished difference Result 9454 states and 15300 transitions. [2018-10-23 20:22:24,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:22:24,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2018-10-23 20:22:24,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:24,665 INFO L225 Difference]: With dead ends: 9454 [2018-10-23 20:22:24,666 INFO L226 Difference]: Without dead ends: 6730 [2018-10-23 20:22:24,672 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:22:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2018-10-23 20:22:24,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6699. [2018-10-23 20:22:24,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6699 states. [2018-10-23 20:22:24,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9386 transitions. [2018-10-23 20:22:24,813 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9386 transitions. Word has length 170 [2018-10-23 20:22:24,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:24,814 INFO L481 AbstractCegarLoop]: Abstraction has 6699 states and 9386 transitions. [2018-10-23 20:22:24,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:22:24,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9386 transitions. [2018-10-23 20:22:24,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-23 20:22:24,822 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:24,822 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:22:24,823 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:24,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:24,823 INFO L82 PathProgramCache]: Analyzing trace with hash -811056578, now seen corresponding path program 1 times [2018-10-23 20:22:24,823 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:24,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:24,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:24,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:24,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 20:22:25,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:22:25,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:22:25,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:22:25,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:22:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:22:25,232 INFO L87 Difference]: Start difference. First operand 6699 states and 9386 transitions. Second operand 4 states. [2018-10-23 20:22:35,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:35,852 INFO L93 Difference]: Finished difference Result 15796 states and 23170 transitions. [2018-10-23 20:22:35,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:22:35,852 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 220 [2018-10-23 20:22:35,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:35,915 INFO L225 Difference]: With dead ends: 15796 [2018-10-23 20:22:35,915 INFO L226 Difference]: Without dead ends: 9887 [2018-10-23 20:22:35,926 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:22:35,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9887 states. [2018-10-23 20:22:36,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9887 to 9861. [2018-10-23 20:22:36,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9861 states. [2018-10-23 20:22:36,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9861 states to 9861 states and 13467 transitions. [2018-10-23 20:22:36,126 INFO L78 Accepts]: Start accepts. Automaton has 9861 states and 13467 transitions. Word has length 220 [2018-10-23 20:22:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:36,127 INFO L481 AbstractCegarLoop]: Abstraction has 9861 states and 13467 transitions. [2018-10-23 20:22:36,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:22:36,127 INFO L276 IsEmpty]: Start isEmpty. Operand 9861 states and 13467 transitions. [2018-10-23 20:22:36,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-10-23 20:22:36,137 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:36,139 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:22:36,139 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:36,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:36,139 INFO L82 PathProgramCache]: Analyzing trace with hash 136812175, now seen corresponding path program 1 times [2018-10-23 20:22:36,140 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:36,140 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:36,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:36,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:36,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-10-23 20:22:36,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:22:36,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:22:36,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:22:36,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:22:36,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:22:36,520 INFO L87 Difference]: Start difference. First operand 9861 states and 13467 transitions. Second operand 4 states. [2018-10-23 20:22:45,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:45,806 INFO L93 Difference]: Finished difference Result 33111 states and 46110 transitions. [2018-10-23 20:22:45,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:22:45,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2018-10-23 20:22:45,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:45,881 INFO L225 Difference]: With dead ends: 33111 [2018-10-23 20:22:45,882 INFO L226 Difference]: Without dead ends: 24040 [2018-10-23 20:22:45,899 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:22:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24040 states. [2018-10-23 20:22:46,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24040 to 24039. [2018-10-23 20:22:46,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24039 states. [2018-10-23 20:22:46,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24039 states to 24039 states and 30779 transitions. [2018-10-23 20:22:46,285 INFO L78 Accepts]: Start accepts. Automaton has 24039 states and 30779 transitions. Word has length 271 [2018-10-23 20:22:46,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:46,286 INFO L481 AbstractCegarLoop]: Abstraction has 24039 states and 30779 transitions. [2018-10-23 20:22:46,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:22:46,287 INFO L276 IsEmpty]: Start isEmpty. Operand 24039 states and 30779 transitions. [2018-10-23 20:22:46,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2018-10-23 20:22:46,295 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:46,296 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:22:46,296 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:46,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:46,296 INFO L82 PathProgramCache]: Analyzing trace with hash 1185450294, now seen corresponding path program 1 times [2018-10-23 20:22:46,296 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:46,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:46,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:46,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:46,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-23 20:22:46,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:22:46,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:22:46,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:22:46,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:22:46,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:22:46,777 INFO L87 Difference]: Start difference. First operand 24039 states and 30779 transitions. Second operand 4 states. [2018-10-23 20:22:55,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:22:55,822 INFO L93 Difference]: Finished difference Result 46480 states and 59892 transitions. [2018-10-23 20:22:55,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:22:55,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 317 [2018-10-23 20:22:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:22:55,873 INFO L225 Difference]: With dead ends: 46480 [2018-10-23 20:22:55,873 INFO L226 Difference]: Without dead ends: 23231 [2018-10-23 20:22:55,899 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 [2018-10-23 20:22:55,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23231 states. [2018-10-23 20:22:56,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23231 to 23230. [2018-10-23 20:22:56,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23230 states. [2018-10-23 20:22:56,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23230 states to 23230 states and 26714 transitions. [2018-10-23 20:22:56,218 INFO L78 Accepts]: Start accepts. Automaton has 23230 states and 26714 transitions. Word has length 317 [2018-10-23 20:22:56,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:22:56,219 INFO L481 AbstractCegarLoop]: Abstraction has 23230 states and 26714 transitions. [2018-10-23 20:22:56,219 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:22:56,219 INFO L276 IsEmpty]: Start isEmpty. Operand 23230 states and 26714 transitions. [2018-10-23 20:22:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-10-23 20:22:56,229 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:22:56,229 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:56,230 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:22:56,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:22:56,230 INFO L82 PathProgramCache]: Analyzing trace with hash -957584690, now seen corresponding path program 1 times [2018-10-23 20:22:56,230 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:22:56,231 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:22:56,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:56,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:22:56,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:22:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:22:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-10-23 20:22:56,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:22:56,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 20:22:56,561 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 20:22:56,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 20:22:56,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:22:56,562 INFO L87 Difference]: Start difference. First operand 23230 states and 26714 transitions. Second operand 3 states. [2018-10-23 20:23:01,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:23:01,785 INFO L93 Difference]: Finished difference Result 45657 states and 52641 transitions. [2018-10-23 20:23:01,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 20:23:01,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 341 [2018-10-23 20:23:01,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:23:01,836 INFO L225 Difference]: With dead ends: 45657 [2018-10-23 20:23:01,836 INFO L226 Difference]: Without dead ends: 23217 [2018-10-23 20:23:01,863 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 20:23:01,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23217 states. [2018-10-23 20:23:02,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23217 to 23216. [2018-10-23 20:23:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23216 states. [2018-10-23 20:23:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23216 states to 23216 states and 25558 transitions. [2018-10-23 20:23:02,113 INFO L78 Accepts]: Start accepts. Automaton has 23216 states and 25558 transitions. Word has length 341 [2018-10-23 20:23:02,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:23:02,114 INFO L481 AbstractCegarLoop]: Abstraction has 23216 states and 25558 transitions. [2018-10-23 20:23:02,114 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 20:23:02,114 INFO L276 IsEmpty]: Start isEmpty. Operand 23216 states and 25558 transitions. [2018-10-23 20:23:02,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-10-23 20:23:02,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:23:02,129 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 20:23:02,129 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:23:02,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:23:02,130 INFO L82 PathProgramCache]: Analyzing trace with hash -195832860, now seen corresponding path program 1 times [2018-10-23 20:23:02,130 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:23:02,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:23:02,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:02,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:23:02,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:23:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 409 proven. 4 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2018-10-23 20:23:02,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:23:02,711 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 20:23:02,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:23:02,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:23:02,837 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:23:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2018-10-23 20:23:02,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:23:02,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-23 20:23:02,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:23:02,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:23:02,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:23:02,945 INFO L87 Difference]: Start difference. First operand 23216 states and 25558 transitions. Second operand 4 states. [2018-10-23 20:23:13,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:23:13,905 INFO L93 Difference]: Finished difference Result 81140 states and 90096 transitions. [2018-10-23 20:23:13,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:23:13,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 403 [2018-10-23 20:23:13,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:23:13,984 INFO L225 Difference]: With dead ends: 81140 [2018-10-23 20:23:13,984 INFO L226 Difference]: Without dead ends: 57119 [2018-10-23 20:23:14,011 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 403 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:23:14,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57119 states. [2018-10-23 20:23:14,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57119 to 38171. [2018-10-23 20:23:14,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38171 states. [2018-10-23 20:23:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38171 states to 38171 states and 41317 transitions. [2018-10-23 20:23:14,874 INFO L78 Accepts]: Start accepts. Automaton has 38171 states and 41317 transitions. Word has length 403 [2018-10-23 20:23:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:23:14,875 INFO L481 AbstractCegarLoop]: Abstraction has 38171 states and 41317 transitions. [2018-10-23 20:23:14,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 20:23:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 38171 states and 41317 transitions. [2018-10-23 20:23:14,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2018-10-23 20:23:14,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:23:14,896 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 20:23:14,896 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:23:14,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:23:14,897 INFO L82 PathProgramCache]: Analyzing trace with hash 265828620, now seen corresponding path program 1 times [2018-10-23 20:23:14,897 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:23:14,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:23:14,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:14,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:23:14,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:23:15,453 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-23 20:23:15,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:23:15,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:23:15,454 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:23:15,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:23:15,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:23:15,455 INFO L87 Difference]: Start difference. First operand 38171 states and 41317 transitions. Second operand 5 states. [2018-10-23 20:23:28,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:23:28,628 INFO L93 Difference]: Finished difference Result 124467 states and 135963 transitions. [2018-10-23 20:23:28,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:23:28,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 450 [2018-10-23 20:23:28,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:23:28,716 INFO L225 Difference]: With dead ends: 124467 [2018-10-23 20:23:28,716 INFO L226 Difference]: Without dead ends: 87086 [2018-10-23 20:23:28,741 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 [2018-10-23 20:23:28,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87086 states. [2018-10-23 20:23:29,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87086 to 84709. [2018-10-23 20:23:29,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84709 states. [2018-10-23 20:23:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84709 states to 84709 states and 91030 transitions. [2018-10-23 20:23:29,718 INFO L78 Accepts]: Start accepts. Automaton has 84709 states and 91030 transitions. Word has length 450 [2018-10-23 20:23:29,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:23:29,719 INFO L481 AbstractCegarLoop]: Abstraction has 84709 states and 91030 transitions. [2018-10-23 20:23:29,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:23:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 84709 states and 91030 transitions. [2018-10-23 20:23:29,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2018-10-23 20:23:29,748 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:23:29,749 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-10-23 20:23:29,749 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:23:29,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:23:29,749 INFO L82 PathProgramCache]: Analyzing trace with hash 2087992935, now seen corresponding path program 1 times [2018-10-23 20:23:29,750 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:23:29,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:23:29,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:29,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:23:29,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:23:30,174 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-23 20:23:30,374 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2018-10-23 20:23:30,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:23:30,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:23:30,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 20:23:30,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 20:23:30,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:23:30,376 INFO L87 Difference]: Start difference. First operand 84709 states and 91030 transitions. Second operand 5 states. [2018-10-23 20:23:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:23:48,657 INFO L93 Difference]: Finished difference Result 294973 states and 316445 transitions. [2018-10-23 20:23:48,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 20:23:48,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 506 [2018-10-23 20:23:48,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:23:48,903 INFO L225 Difference]: With dead ends: 294973 [2018-10-23 20:23:48,903 INFO L226 Difference]: Without dead ends: 211054 [2018-10-23 20:23:48,970 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 20:23:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211054 states. [2018-10-23 20:23:51,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211054 to 195902. [2018-10-23 20:23:51,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195902 states. [2018-10-23 20:23:51,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195902 states to 195902 states and 208258 transitions. [2018-10-23 20:23:51,925 INFO L78 Accepts]: Start accepts. Automaton has 195902 states and 208258 transitions. Word has length 506 [2018-10-23 20:23:51,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:23:51,926 INFO L481 AbstractCegarLoop]: Abstraction has 195902 states and 208258 transitions. [2018-10-23 20:23:51,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 20:23:51,926 INFO L276 IsEmpty]: Start isEmpty. Operand 195902 states and 208258 transitions. [2018-10-23 20:23:52,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 636 [2018-10-23 20:23:52,005 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:23:52,006 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:52,006 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:23:52,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:23:52,007 INFO L82 PathProgramCache]: Analyzing trace with hash -795647631, now seen corresponding path program 1 times [2018-10-23 20:23:52,007 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:23:52,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:23:52,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:52,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:23:52,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:23:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:23:52,741 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 276 proven. 464 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2018-10-23 20:23:52,742 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 20:23:52,742 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 20:23:52,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:23:52,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:23:52,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 20:23:53,736 INFO L134 CoverageAnalysis]: Checked inductivity of 976 backedges. 640 proven. 0 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2018-10-23 20:23:53,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 20:23:53,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2018-10-23 20:23:53,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 20:23:53,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 20:23:53,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-23 20:23:53,769 INFO L87 Difference]: Start difference. First operand 195902 states and 208258 transitions. Second operand 8 states. [2018-10-23 20:24:40,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:24:40,005 INFO L93 Difference]: Finished difference Result 576450 states and 612463 transitions. [2018-10-23 20:24:40,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-23 20:24:40,006 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 635 [2018-10-23 20:24:40,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:24:40,399 INFO L225 Difference]: With dead ends: 576450 [2018-10-23 20:24:40,399 INFO L226 Difference]: Without dead ends: 359213 [2018-10-23 20:24:40,480 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 633 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2018-10-23 20:24:40,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359213 states. [2018-10-23 20:24:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359213 to 315706. [2018-10-23 20:24:44,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315706 states. [2018-10-23 20:24:44,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315706 states to 315706 states and 332454 transitions. [2018-10-23 20:24:44,913 INFO L78 Accepts]: Start accepts. Automaton has 315706 states and 332454 transitions. Word has length 635 [2018-10-23 20:24:44,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 20:24:44,913 INFO L481 AbstractCegarLoop]: Abstraction has 315706 states and 332454 transitions. [2018-10-23 20:24:44,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 20:24:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 315706 states and 332454 transitions. [2018-10-23 20:24:44,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2018-10-23 20:24:44,951 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 20:24:44,952 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 20:24:44,952 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 20:24:44,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 20:24:44,953 INFO L82 PathProgramCache]: Analyzing trace with hash -781821835, now seen corresponding path program 1 times [2018-10-23 20:24:44,953 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 20:24:44,953 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 20:24:44,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:24:44,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 20:24:44,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 20:24:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 20:24:47,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 1040 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2018-10-23 20:24:47,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 20:24:47,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 20:24:47,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 20:24:47,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 20:24:47,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:24:47,422 INFO L87 Difference]: Start difference. First operand 315706 states and 332454 transitions. Second operand 4 states. [2018-10-23 20:25:01,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 20:25:01,629 INFO L93 Difference]: Finished difference Result 598291 states and 629970 transitions. [2018-10-23 20:25:01,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 20:25:01,629 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 810 [2018-10-23 20:25:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 20:25:01,984 INFO L225 Difference]: With dead ends: 598291 [2018-10-23 20:25:01,984 INFO L226 Difference]: Without dead ends: 283375 [2018-10-23 20:25:02,122 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 20:25:02,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283375 states. Received shutdown request... [2018-10-23 20:25:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283375 to 262864. [2018-10-23 20:25:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262864 states. [2018-10-23 20:25:14,817 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 20:25:14,822 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 20:25:14,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:25:14 BoogieIcfgContainer [2018-10-23 20:25:14,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 20:25:14,823 INFO L168 Benchmark]: Toolchain (without parser) took 229457.15 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-10-23 20:25:14,825 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 20:25:14,825 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2507.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-23 20:25:14,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 871.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 815.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2018-10-23 20:25:14,827 INFO L168 Benchmark]: Boogie Preprocessor took 564.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 7.1 GB. [2018-10-23 20:25:14,828 INFO L168 Benchmark]: RCFGBuilder took 16105.97 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 262.1 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -15.8 MB). Peak memory consumption was 616.5 MB. Max. memory is 7.1 GB. [2018-10-23 20:25:14,829 INFO L168 Benchmark]: TraceAbstraction took 209402.17 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-23 20:25:14,839 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2507.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 871.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 815.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 564.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 71.3 MB). Peak memory consumption was 71.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16105.97 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 262.1 MB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -15.8 MB). Peak memory consumption was 616.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209402.17 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.1 GB in the beginning and 3.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1099 locations, 1 error locations. TIMEOUT Result, 209.3s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 175.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9231 SDtfs, 37851 SDslu, 3793 SDs, 0 SdLazy, 70664 SolverSat, 18259 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 144.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1264 GetRequests, 1217 SyntacticMatches, 6 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315706occurred in iteration=10, 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: 23.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 80045 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 5375 NumberOfCodeBlocks, 5375 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5361 ConstructedInterpolants, 90 QuantifiedInterpolants, 6020668 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1613 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 6113/6585 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown