java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 16:39:41,532 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 16:39:41,534 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 16:39:41,550 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 16:39:41,550 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 16:39:41,551 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 16:39:41,553 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 16:39:41,554 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 16:39:41,556 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 16:39:41,557 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 16:39:41,558 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 16:39:41,558 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 16:39:41,559 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 16:39:41,560 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 16:39:41,561 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 16:39:41,562 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 16:39:41,563 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 16:39:41,565 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 16:39:41,567 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 16:39:41,572 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 16:39:41,576 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 16:39:41,577 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 16:39:41,579 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 16:39:41,587 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 16:39:41,602 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 16:39:41,602 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 16:39:41,603 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 16:39:41,603 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 16:39:41,604 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 16:39:41,604 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 16:39:41,604 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 16:39:41,604 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 16:39:41,604 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 16:39:41,605 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 16:39:41,605 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 16:39:41,605 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 16:39:41,605 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 16:39:41,605 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 16:39:41,605 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 16:39:41,606 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 16:39:41,606 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 16:39:41,606 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 16:39:41,606 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 16:39:41,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:39:41,607 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 16:39:41,607 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 16:39:41,607 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 16:39:41,607 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 16:39:41,607 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 16:39:41,608 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 16:39:41,608 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 16:39:41,608 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 16:39:41,662 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 16:39:41,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 16:39:41,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 16:39:41,679 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 16:39:41,679 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 16:39:41,680 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-10-24 16:39:41,737 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/36855d8ab/93b440cae6bc443cb31878efac47bcda/FLAG6f0a66b92 [2018-10-24 16:39:42,464 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 16:39:42,465 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-10-24 16:39:42,486 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/36855d8ab/93b440cae6bc443cb31878efac47bcda/FLAG6f0a66b92 [2018-10-24 16:39:42,508 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/36855d8ab/93b440cae6bc443cb31878efac47bcda [2018-10-24 16:39:42,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 16:39:42,521 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 16:39:42,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 16:39:42,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 16:39:42,526 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 16:39:42,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:39:42" (1/1) ... [2018-10-24 16:39:42,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d7077a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:42, skipping insertion in model container [2018-10-24 16:39:42,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:39:42" (1/1) ... [2018-10-24 16:39:42,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 16:39:42,622 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 16:39:43,347 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:39:43,353 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 16:39:43,660 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 16:39:43,679 INFO L193 MainTranslator]: Completed translation [2018-10-24 16:39:43,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43 WrapperNode [2018-10-24 16:39:43,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 16:39:43,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 16:39:43,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 16:39:43,681 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 16:39:43,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... [2018-10-24 16:39:43,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... [2018-10-24 16:39:44,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 16:39:44,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 16:39:44,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 16:39:44,002 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 16:39:44,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... [2018-10-24 16:39:44,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... [2018-10-24 16:39:44,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... [2018-10-24 16:39:44,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... [2018-10-24 16:39:44,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... [2018-10-24 16:39:44,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... [2018-10-24 16:39:44,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... [2018-10-24 16:39:44,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 16:39:44,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 16:39:44,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 16:39:44,193 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 16:39:44,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 16:39:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 16:39:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 16:39:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 16:39:51,086 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 16:39:51,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:39:51 BoogieIcfgContainer [2018-10-24 16:39:51,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 16:39:51,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 16:39:51,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 16:39:51,092 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 16:39:51,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:39:42" (1/3) ... [2018-10-24 16:39:51,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2d2aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:39:51, skipping insertion in model container [2018-10-24 16:39:51,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:39:43" (2/3) ... [2018-10-24 16:39:51,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2d2aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:39:51, skipping insertion in model container [2018-10-24 16:39:51,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:39:51" (3/3) ... [2018-10-24 16:39:51,096 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label02_true-unreach-call.c [2018-10-24 16:39:51,107 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 16:39:51,116 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 16:39:51,134 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 16:39:51,172 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 16:39:51,173 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 16:39:51,173 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 16:39:51,173 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 16:39:51,173 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 16:39:51,173 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 16:39:51,174 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 16:39:51,174 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 16:39:51,174 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 16:39:51,204 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states. [2018-10-24 16:39:51,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-24 16:39:51,223 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:39:51,224 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] [2018-10-24 16:39:51,229 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:39:51,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:39:51,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1515441142, now seen corresponding path program 1 times [2018-10-24 16:39:51,238 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:39:51,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:39:51,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:39:51,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:39:51,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:39:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:39:51,777 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-10-24 16:39:51,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:39:51,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:39:51,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:39:51,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:39:51,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:39:51,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:39:51,823 INFO L87 Difference]: Start difference. First operand 397 states. Second operand 4 states. [2018-10-24 16:39:59,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:39:59,545 INFO L93 Difference]: Finished difference Result 1473 states and 2781 transitions. [2018-10-24 16:39:59,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:39:59,547 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-10-24 16:39:59,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:39:59,578 INFO L225 Difference]: With dead ends: 1473 [2018-10-24 16:39:59,578 INFO L226 Difference]: Without dead ends: 1069 [2018-10-24 16:39:59,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:39:59,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2018-10-24 16:39:59,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1069. [2018-10-24 16:39:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1069 states. [2018-10-24 16:39:59,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1914 transitions. [2018-10-24 16:39:59,710 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1914 transitions. Word has length 62 [2018-10-24 16:39:59,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:39:59,712 INFO L481 AbstractCegarLoop]: Abstraction has 1069 states and 1914 transitions. [2018-10-24 16:39:59,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:39:59,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1914 transitions. [2018-10-24 16:39:59,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 16:39:59,721 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:39:59,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:39:59,723 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:39:59,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:39:59,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1711155478, now seen corresponding path program 1 times [2018-10-24 16:39:59,724 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:39:59,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:39:59,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:39:59,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:39:59,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:39:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:40:00,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:40:00,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:40:00,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:40:00,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:40:00,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:40:00,111 INFO L87 Difference]: Start difference. First operand 1069 states and 1914 transitions. Second operand 4 states. [2018-10-24 16:40:07,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:40:07,456 INFO L93 Difference]: Finished difference Result 4116 states and 7498 transitions. [2018-10-24 16:40:07,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:40:07,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2018-10-24 16:40:07,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:40:07,475 INFO L225 Difference]: With dead ends: 4116 [2018-10-24 16:40:07,475 INFO L226 Difference]: Without dead ends: 3049 [2018-10-24 16:40:07,481 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:40:07,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3049 states. [2018-10-24 16:40:07,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3049 to 3049. [2018-10-24 16:40:07,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3049 states. [2018-10-24 16:40:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 4881 transitions. [2018-10-24 16:40:07,554 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 4881 transitions. Word has length 129 [2018-10-24 16:40:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:40:07,555 INFO L481 AbstractCegarLoop]: Abstraction has 3049 states and 4881 transitions. [2018-10-24 16:40:07,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:40:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 4881 transitions. [2018-10-24 16:40:07,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-10-24 16:40:07,562 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:40:07,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:40:07,563 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:40:07,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:40:07,564 INFO L82 PathProgramCache]: Analyzing trace with hash -22839616, now seen corresponding path program 1 times [2018-10-24 16:40:07,564 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:40:07,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:40:07,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:07,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:40:07,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:08,038 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2018-10-24 16:40:08,307 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:40:08,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:40:08,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 16:40:08,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:40:08,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:40:08,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:40:08,309 INFO L87 Difference]: Start difference. First operand 3049 states and 4881 transitions. Second operand 7 states. [2018-10-24 16:40:09,677 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-24 16:40:18,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:40:18,214 INFO L93 Difference]: Finished difference Result 9395 states and 14329 transitions. [2018-10-24 16:40:18,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 16:40:18,216 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2018-10-24 16:40:18,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:40:18,249 INFO L225 Difference]: With dead ends: 9395 [2018-10-24 16:40:18,249 INFO L226 Difference]: Without dead ends: 6348 [2018-10-24 16:40:18,255 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-10-24 16:40:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2018-10-24 16:40:18,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 6016. [2018-10-24 16:40:18,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6016 states. [2018-10-24 16:40:18,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6016 states to 6016 states and 8749 transitions. [2018-10-24 16:40:18,364 INFO L78 Accepts]: Start accepts. Automaton has 6016 states and 8749 transitions. Word has length 197 [2018-10-24 16:40:18,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:40:18,365 INFO L481 AbstractCegarLoop]: Abstraction has 6016 states and 8749 transitions. [2018-10-24 16:40:18,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:40:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 6016 states and 8749 transitions. [2018-10-24 16:40:18,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-10-24 16:40:18,371 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:40:18,371 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:40:18,372 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:40:18,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:40:18,372 INFO L82 PathProgramCache]: Analyzing trace with hash 863114307, now seen corresponding path program 1 times [2018-10-24 16:40:18,372 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:40:18,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:40:18,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:18,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:40:18,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:18,756 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-24 16:40:18,977 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2018-10-24 16:40:19,234 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 20 [2018-10-24 16:40:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-24 16:40:19,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:40:19,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 16:40:19,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:40:19,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:40:19,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:40:19,587 INFO L87 Difference]: Start difference. First operand 6016 states and 8749 transitions. Second operand 7 states. [2018-10-24 16:40:25,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:40:25,739 INFO L93 Difference]: Finished difference Result 12419 states and 17899 transitions. [2018-10-24 16:40:25,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:40:25,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 289 [2018-10-24 16:40:25,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:40:25,779 INFO L225 Difference]: With dead ends: 12419 [2018-10-24 16:40:25,779 INFO L226 Difference]: Without dead ends: 6405 [2018-10-24 16:40:25,789 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:40:25,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2018-10-24 16:40:25,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6346. [2018-10-24 16:40:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6346 states. [2018-10-24 16:40:25,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 9085 transitions. [2018-10-24 16:40:25,907 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 9085 transitions. Word has length 289 [2018-10-24 16:40:25,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:40:25,908 INFO L481 AbstractCegarLoop]: Abstraction has 6346 states and 9085 transitions. [2018-10-24 16:40:25,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:40:25,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 9085 transitions. [2018-10-24 16:40:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-10-24 16:40:25,914 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:40:25,915 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, 2, 2, 2, 2, 2, 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] [2018-10-24 16:40:25,915 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:40:25,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:40:25,915 INFO L82 PathProgramCache]: Analyzing trace with hash -942626239, now seen corresponding path program 1 times [2018-10-24 16:40:25,916 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:40:25,916 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:40:25,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:25,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:40:25,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-10-24 16:40:26,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:40:26,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:40:26,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:40:26,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:40:26,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:40:26,300 INFO L87 Difference]: Start difference. First operand 6346 states and 9085 transitions. Second operand 4 states. [2018-10-24 16:40:28,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:40:28,894 INFO L93 Difference]: Finished difference Result 16980 states and 24791 transitions. [2018-10-24 16:40:28,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:40:28,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 292 [2018-10-24 16:40:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:40:28,952 INFO L225 Difference]: With dead ends: 16980 [2018-10-24 16:40:28,953 INFO L226 Difference]: Without dead ends: 10966 [2018-10-24 16:40:28,960 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:40:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10966 states. [2018-10-24 16:40:29,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10966 to 10966. [2018-10-24 16:40:29,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10966 states. [2018-10-24 16:40:29,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10966 states to 10966 states and 14706 transitions. [2018-10-24 16:40:29,145 INFO L78 Accepts]: Start accepts. Automaton has 10966 states and 14706 transitions. Word has length 292 [2018-10-24 16:40:29,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:40:29,146 INFO L481 AbstractCegarLoop]: Abstraction has 10966 states and 14706 transitions. [2018-10-24 16:40:29,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:40:29,146 INFO L276 IsEmpty]: Start isEmpty. Operand 10966 states and 14706 transitions. [2018-10-24 16:40:29,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2018-10-24 16:40:29,156 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:40:29,157 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:40:29,157 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:40:29,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:40:29,158 INFO L82 PathProgramCache]: Analyzing trace with hash -2090009867, now seen corresponding path program 1 times [2018-10-24 16:40:29,158 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:40:29,158 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:40:29,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:29,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:40:29,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-24 16:40:29,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:40:29,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 16:40:29,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 16:40:29,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 16:40:29,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:40:29,523 INFO L87 Difference]: Start difference. First operand 10966 states and 14706 transitions. Second operand 3 states. [2018-10-24 16:40:32,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:40:32,135 INFO L93 Difference]: Finished difference Result 26550 states and 35820 transitions. [2018-10-24 16:40:32,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 16:40:32,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 442 [2018-10-24 16:40:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:40:32,160 INFO L225 Difference]: With dead ends: 26550 [2018-10-24 16:40:32,160 INFO L226 Difference]: Without dead ends: 13585 [2018-10-24 16:40:32,174 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 16:40:32,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13585 states. [2018-10-24 16:40:32,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13585 to 13585. [2018-10-24 16:40:32,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13585 states. [2018-10-24 16:40:32,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13585 states to 13585 states and 15126 transitions. [2018-10-24 16:40:32,341 INFO L78 Accepts]: Start accepts. Automaton has 13585 states and 15126 transitions. Word has length 442 [2018-10-24 16:40:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:40:32,341 INFO L481 AbstractCegarLoop]: Abstraction has 13585 states and 15126 transitions. [2018-10-24 16:40:32,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 16:40:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 13585 states and 15126 transitions. [2018-10-24 16:40:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2018-10-24 16:40:32,352 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:40:32,352 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:40:32,353 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:40:32,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:40:32,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1242359550, now seen corresponding path program 1 times [2018-10-24 16:40:32,353 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:40:32,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:40:32,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:32,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:40:32,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:32,772 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:40:32,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:40:32,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:40:32,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:40:32,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:40:32,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:40:32,774 INFO L87 Difference]: Start difference. First operand 13585 states and 15126 transitions. Second operand 4 states. [2018-10-24 16:40:35,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:40:35,320 INFO L93 Difference]: Finished difference Result 34428 states and 38496 transitions. [2018-10-24 16:40:35,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:40:35,321 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 458 [2018-10-24 16:40:35,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:40:35,357 INFO L225 Difference]: With dead ends: 34428 [2018-10-24 16:40:35,357 INFO L226 Difference]: Without dead ends: 20844 [2018-10-24 16:40:35,373 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 [2018-10-24 16:40:35,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20844 states. [2018-10-24 16:40:35,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20844 to 20184. [2018-10-24 16:40:35,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20184 states. [2018-10-24 16:40:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20184 states to 20184 states and 22019 transitions. [2018-10-24 16:40:35,646 INFO L78 Accepts]: Start accepts. Automaton has 20184 states and 22019 transitions. Word has length 458 [2018-10-24 16:40:35,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:40:35,647 INFO L481 AbstractCegarLoop]: Abstraction has 20184 states and 22019 transitions. [2018-10-24 16:40:35,647 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:40:35,647 INFO L276 IsEmpty]: Start isEmpty. Operand 20184 states and 22019 transitions. [2018-10-24 16:40:35,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2018-10-24 16:40:35,661 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:40:35,662 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:40:35,662 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:40:35,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:40:35,663 INFO L82 PathProgramCache]: Analyzing trace with hash 872277918, now seen corresponding path program 1 times [2018-10-24 16:40:35,663 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:40:35,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:40:35,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:35,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:40:35,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:36,101 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 16:40:36,467 WARN L179 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-10-24 16:40:36,843 WARN L179 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 15 [2018-10-24 16:40:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 211 proven. 130 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-10-24 16:40:37,728 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:40:37,728 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:40:37,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:40:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:37,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:40:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2018-10-24 16:40:38,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 16:40:38,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2018-10-24 16:40:38,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 16:40:38,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 16:40:38,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-10-24 16:40:38,357 INFO L87 Difference]: Start difference. First operand 20184 states and 22019 transitions. Second operand 11 states. [2018-10-24 16:40:49,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:40:49,532 INFO L93 Difference]: Finished difference Result 47329 states and 51474 transitions. [2018-10-24 16:40:49,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-24 16:40:49,532 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 470 [2018-10-24 16:40:49,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:40:49,573 INFO L225 Difference]: With dead ends: 47329 [2018-10-24 16:40:49,573 INFO L226 Difference]: Without dead ends: 27477 [2018-10-24 16:40:49,591 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2018-10-24 16:40:49,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27477 states. [2018-10-24 16:40:49,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27477 to 25463. [2018-10-24 16:40:49,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25463 states. [2018-10-24 16:40:49,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25463 states to 25463 states and 27278 transitions. [2018-10-24 16:40:49,982 INFO L78 Accepts]: Start accepts. Automaton has 25463 states and 27278 transitions. Word has length 470 [2018-10-24 16:40:49,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:40:49,983 INFO L481 AbstractCegarLoop]: Abstraction has 25463 states and 27278 transitions. [2018-10-24 16:40:49,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-24 16:40:49,983 INFO L276 IsEmpty]: Start isEmpty. Operand 25463 states and 27278 transitions. [2018-10-24 16:40:49,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2018-10-24 16:40:49,996 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:40:49,997 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:40:49,997 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:40:49,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:40:49,997 INFO L82 PathProgramCache]: Analyzing trace with hash -294745584, now seen corresponding path program 1 times [2018-10-24 16:40:49,998 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:40:49,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:40:49,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:49,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:40:49,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:40:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2018-10-24 16:40:51,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:40:51,097 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:40:51,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:40:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:40:51,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:40:51,950 WARN L179 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 32 [2018-10-24 16:40:53,081 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 240 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:40:53,102 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:40:53,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-10-24 16:40:53,103 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 16:40:53,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 16:40:53,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:40:53,104 INFO L87 Difference]: Start difference. First operand 25463 states and 27278 transitions. Second operand 8 states. [2018-10-24 16:41:01,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:41:01,014 INFO L93 Difference]: Finished difference Result 59638 states and 63685 transitions. [2018-10-24 16:41:01,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 16:41:01,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 478 [2018-10-24 16:41:01,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:41:01,060 INFO L225 Difference]: With dead ends: 59638 [2018-10-24 16:41:01,061 INFO L226 Difference]: Without dead ends: 34391 [2018-10-24 16:41:01,082 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-10-24 16:41:01,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34391 states. [2018-10-24 16:41:01,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34391 to 33730. [2018-10-24 16:41:01,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33730 states. [2018-10-24 16:41:01,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33730 states to 33730 states and 35827 transitions. [2018-10-24 16:41:01,742 INFO L78 Accepts]: Start accepts. Automaton has 33730 states and 35827 transitions. Word has length 478 [2018-10-24 16:41:01,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:41:01,743 INFO L481 AbstractCegarLoop]: Abstraction has 33730 states and 35827 transitions. [2018-10-24 16:41:01,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 16:41:01,744 INFO L276 IsEmpty]: Start isEmpty. Operand 33730 states and 35827 transitions. [2018-10-24 16:41:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2018-10-24 16:41:01,757 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:41:01,758 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:41:01,758 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:41:01,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:41:01,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1265973217, now seen corresponding path program 1 times [2018-10-24 16:41:01,759 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:41:01,759 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:41:01,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:01,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:41:01,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:41:02,520 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 455 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-10-24 16:41:02,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:41:02,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:41:02,522 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:41:02,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:41:02,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:41:02,523 INFO L87 Difference]: Start difference. First operand 33730 states and 35827 transitions. Second operand 4 states. [2018-10-24 16:41:04,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:41:04,957 INFO L93 Difference]: Finished difference Result 67128 states and 71320 transitions. [2018-10-24 16:41:04,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:41:04,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 583 [2018-10-24 16:41:04,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:41:04,991 INFO L225 Difference]: With dead ends: 67128 [2018-10-24 16:41:04,992 INFO L226 Difference]: Without dead ends: 33399 [2018-10-24 16:41:05,016 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:41:05,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33399 states. [2018-10-24 16:41:05,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33399 to 33399. [2018-10-24 16:41:05,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33399 states. [2018-10-24 16:41:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33399 states to 33399 states and 34920 transitions. [2018-10-24 16:41:05,397 INFO L78 Accepts]: Start accepts. Automaton has 33399 states and 34920 transitions. Word has length 583 [2018-10-24 16:41:05,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:41:05,398 INFO L481 AbstractCegarLoop]: Abstraction has 33399 states and 34920 transitions. [2018-10-24 16:41:05,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:41:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 33399 states and 34920 transitions. [2018-10-24 16:41:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2018-10-24 16:41:05,412 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:41:05,412 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:41:05,412 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:41:05,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:41:05,413 INFO L82 PathProgramCache]: Analyzing trace with hash -906908027, now seen corresponding path program 1 times [2018-10-24 16:41:05,413 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:41:05,413 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:41:05,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:05,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:41:05,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:41:06,184 INFO L134 CoverageAnalysis]: Checked inductivity of 587 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2018-10-24 16:41:06,184 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:41:06,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:41:06,185 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 16:41:06,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 16:41:06,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 16:41:06,185 INFO L87 Difference]: Start difference. First operand 33399 states and 34920 transitions. Second operand 4 states. [2018-10-24 16:41:08,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:41:08,330 INFO L93 Difference]: Finished difference Result 66466 states and 69506 transitions. [2018-10-24 16:41:08,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 16:41:08,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 619 [2018-10-24 16:41:08,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:41:08,362 INFO L225 Difference]: With dead ends: 66466 [2018-10-24 16:41:08,363 INFO L226 Difference]: Without dead ends: 33399 [2018-10-24 16:41:08,382 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 [2018-10-24 16:41:08,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33399 states. [2018-10-24 16:41:08,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33399 to 32409. [2018-10-24 16:41:08,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32409 states. [2018-10-24 16:41:08,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32409 states to 32409 states and 33628 transitions. [2018-10-24 16:41:08,704 INFO L78 Accepts]: Start accepts. Automaton has 32409 states and 33628 transitions. Word has length 619 [2018-10-24 16:41:08,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:41:08,705 INFO L481 AbstractCegarLoop]: Abstraction has 32409 states and 33628 transitions. [2018-10-24 16:41:08,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 16:41:08,705 INFO L276 IsEmpty]: Start isEmpty. Operand 32409 states and 33628 transitions. [2018-10-24 16:41:08,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2018-10-24 16:41:08,719 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:41:08,719 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 16:41:08,720 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:41:08,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:41:08,720 INFO L82 PathProgramCache]: Analyzing trace with hash 2144475065, now seen corresponding path program 1 times [2018-10-24 16:41:08,720 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:41:08,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:41:08,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:08,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:41:08,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:41:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 713 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-24 16:41:09,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 16:41:09,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 16:41:09,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 16:41:09,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 16:41:09,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:41:09,586 INFO L87 Difference]: Start difference. First operand 32409 states and 33628 transitions. Second operand 5 states. [2018-10-24 16:41:13,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:41:13,085 INFO L93 Difference]: Finished difference Result 73736 states and 76630 transitions. [2018-10-24 16:41:13,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 16:41:13,085 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 722 [2018-10-24 16:41:13,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:41:13,128 INFO L225 Difference]: With dead ends: 73736 [2018-10-24 16:41:13,128 INFO L226 Difference]: Without dead ends: 41659 [2018-10-24 16:41:13,147 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-24 16:41:13,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41659 states. [2018-10-24 16:41:13,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41659 to 37359. [2018-10-24 16:41:13,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37359 states. [2018-10-24 16:41:13,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37359 states to 37359 states and 38672 transitions. [2018-10-24 16:41:13,479 INFO L78 Accepts]: Start accepts. Automaton has 37359 states and 38672 transitions. Word has length 722 [2018-10-24 16:41:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:41:13,479 INFO L481 AbstractCegarLoop]: Abstraction has 37359 states and 38672 transitions. [2018-10-24 16:41:13,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 16:41:13,480 INFO L276 IsEmpty]: Start isEmpty. Operand 37359 states and 38672 transitions. [2018-10-24 16:41:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2018-10-24 16:41:13,490 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:41:13,490 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:41:13,491 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:41:13,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:41:13,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1941804930, now seen corresponding path program 1 times [2018-10-24 16:41:13,491 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:41:13,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:41:13,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:13,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:41:13,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:13,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:41:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 587 proven. 312 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-24 16:41:14,280 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:41:14,280 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:41:14,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:41:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:41:14,458 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:41:15,193 INFO L134 CoverageAnalysis]: Checked inductivity of 959 backedges. 802 proven. 97 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-10-24 16:41:15,213 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:41:15,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2018-10-24 16:41:15,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 16:41:15,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 16:41:15,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-10-24 16:41:15,215 INFO L87 Difference]: Start difference. First operand 37359 states and 38672 transitions. Second operand 7 states. [2018-10-24 16:41:19,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:41:19,916 INFO L93 Difference]: Finished difference Result 85293 states and 88205 transitions. [2018-10-24 16:41:19,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 16:41:19,916 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 727 [2018-10-24 16:41:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:41:19,962 INFO L225 Difference]: With dead ends: 85293 [2018-10-24 16:41:19,962 INFO L226 Difference]: Without dead ends: 47936 [2018-10-24 16:41:19,984 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 726 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 16:41:20,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47936 states. [2018-10-24 16:41:20,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47936 to 32399. [2018-10-24 16:41:20,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32399 states. [2018-10-24 16:41:20,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32399 states to 32399 states and 33451 transitions. [2018-10-24 16:41:20,406 INFO L78 Accepts]: Start accepts. Automaton has 32399 states and 33451 transitions. Word has length 727 [2018-10-24 16:41:20,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:41:20,407 INFO L481 AbstractCegarLoop]: Abstraction has 32399 states and 33451 transitions. [2018-10-24 16:41:20,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 16:41:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 32399 states and 33451 transitions. [2018-10-24 16:41:20,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2018-10-24 16:41:20,421 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:41:20,421 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 16:41:20,422 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:41:20,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:41:20,422 INFO L82 PathProgramCache]: Analyzing trace with hash -22463942, now seen corresponding path program 1 times [2018-10-24 16:41:20,422 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:41:20,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:41:20,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:20,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:41:20,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:41:21,079 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-10-24 16:41:21,382 WARN L179 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 8 [2018-10-24 16:41:21,741 WARN L179 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-10-24 16:41:22,217 WARN L179 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 15 [2018-10-24 16:41:23,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 718 proven. 158 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2018-10-24 16:41:23,300 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:41:23,301 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:41:23,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:41:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:41:23,487 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:41:24,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 419 proven. 270 refuted. 0 times theorem prover too weak. 609 trivial. 0 not checked. [2018-10-24 16:41:24,140 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-24 16:41:24,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 12 [2018-10-24 16:41:24,141 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 16:41:24,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 16:41:24,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-10-24 16:41:24,142 INFO L87 Difference]: Start difference. First operand 32399 states and 33451 transitions. Second operand 13 states. [2018-10-24 16:41:42,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 16:41:42,292 INFO L93 Difference]: Finished difference Result 78840 states and 81407 transitions. [2018-10-24 16:41:42,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-10-24 16:41:42,292 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 758 [2018-10-24 16:41:42,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 16:41:42,331 INFO L225 Difference]: With dead ends: 78840 [2018-10-24 16:41:42,331 INFO L226 Difference]: Without dead ends: 45759 [2018-10-24 16:41:42,351 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 795 GetRequests, 754 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=389, Invalid=1333, Unknown=0, NotChecked=0, Total=1722 [2018-10-24 16:41:42,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45759 states. [2018-10-24 16:41:42,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45759 to 34455. [2018-10-24 16:41:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34455 states. [2018-10-24 16:41:42,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34455 states to 34455 states and 35432 transitions. [2018-10-24 16:41:42,659 INFO L78 Accepts]: Start accepts. Automaton has 34455 states and 35432 transitions. Word has length 758 [2018-10-24 16:41:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 16:41:42,660 INFO L481 AbstractCegarLoop]: Abstraction has 34455 states and 35432 transitions. [2018-10-24 16:41:42,660 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-24 16:41:42,660 INFO L276 IsEmpty]: Start isEmpty. Operand 34455 states and 35432 transitions. [2018-10-24 16:41:42,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 785 [2018-10-24 16:41:42,670 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 16:41:42,670 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 16:41:42,671 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 16:41:42,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 16:41:42,671 INFO L82 PathProgramCache]: Analyzing trace with hash -690422455, now seen corresponding path program 1 times [2018-10-24 16:41:42,671 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 16:41:42,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 16:41:42,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:42,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:41:42,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 16:41:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:41:43,509 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 5 [2018-10-24 16:41:43,754 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2018-10-24 16:41:44,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 428 proven. 656 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 16:41:44,673 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 16:41:44,673 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:41:44,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 16:41:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 16:41:44,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 16:41:47,361 WARN L179 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 491 DAG size of output: 53 Received shutdown request... [2018-10-24 16:43:45,890 WARN L187 SmtUtils]: Removed 63 from assertion stack [2018-10-24 16:43:45,890 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 16:43:46,091 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 16:43:46,092 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 16:43:46,098 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 16:43:46,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:43:46 BoogieIcfgContainer [2018-10-24 16:43:46,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 16:43:46,099 INFO L168 Benchmark]: Toolchain (without parser) took 243579.15 ms. Allocated memory was 1.6 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 16:43:46,100 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 16:43:46,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1157.91 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 16:43:46,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 320.65 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 769.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -883.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:43:46,102 INFO L168 Benchmark]: Boogie Preprocessor took 191.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-10-24 16:43:46,103 INFO L168 Benchmark]: RCFGBuilder took 6894.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 264.7 MB). Peak memory consumption was 264.7 MB. Max. memory is 7.1 GB. [2018-10-24 16:43:46,104 INFO L168 Benchmark]: TraceAbstraction took 235009.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -930.0 MB). Peak memory consumption was 916.6 MB. Max. memory is 7.1 GB. [2018-10-24 16:43:46,109 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1157.91 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 320.65 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 769.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -883.5 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 191.12 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6894.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 264.7 MB). Peak memory consumption was 264.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235009.76 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -930.0 MB). Peak memory consumption was 916.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was analyzing trace of length 785 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 2237. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 397 locations, 1 error locations. TIMEOUT Result, 234.9s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 89.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2642 SDtfs, 22020 SDslu, 1831 SDs, 0 SdLazy, 50735 SolverSat, 5982 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2541 GetRequests, 2438 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37359occurred in iteration=12, 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: 3.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 35857 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 8659 NumberOfCodeBlocks, 8659 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 8641 ConstructedInterpolants, 58 QuantifiedInterpolants, 24111626 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2909 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 7993/9137 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown